pandas pivot table sort by value

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Dependent on the selected axis. We then sorted the data by the 'sales' column in increasing order. If zero (1) or columns, apply to each row. If zero (0) or index is selected, apply to each column. Pandas comes with a method, .quantiles(), that lets us define a range of values we want to select based on their percentage in the range of data. Pandas: How to Reshape DataFrame from Long to Wide, Pandas: How to Reshape DataFrame from Wide to Long, Pandas: How to Group and Aggregate by Multiple Columns, How to Use ggsave to Quickly Save ggplot2 Plots, How to Add Horizontal Line to Plot and Legend in ggplot2, How to Create a Horizontal Legend in Base R (2 Methods). Lets sort our data first by the region column and then by the sales column. Copyright 2023 www.appsloveworld.com. Columns used in the pivot operation. The all column gives 408.182482 instead of 1228.419313. How to make pandas.read_excel with engine='openpyxl' behave like it did with xlrd, not showing nanoseconds by default? We can see above that the data was sorted by the 'sales' column but in descending order. DataFrame.pivot : Reshape data based on column values. Its time to check test your learning! is function or list of functions. The data must be in a Series format and applies to each column. The drop_level() method removes the specified index or column from a DataFrame/Series. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The function pivot_table () can be used to create spreadsheet-style pivot tables. Create a spreadsheet-style pivot table as a DataFrame. :(, The philosopher who believes in Web Assembly, Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. Lets see how we can use the columns= parameter to split the data by the Type column. These levels can be a position or a label. This first example aggregates values by taking the sum. The levels in the pivot table will be stored in MultiIndex objects (hierarchical indexes) on the index and columns of the result DataFrame. Boost your skills. If the installations were successful, a message displays in the terminal indicating the same. IPython Notebook & Pandas: How does pandas produce html table? Sketch Engine API search query: How to get frequency? A single column can be a string, while multiple columns should be a list of strings, A function or list of functions to aggregate data by, To choose to not include columns where all entries are NaN, How to group data using an index or a multi-index, How to pivot table even further using indices and columns, How to specify and create your own aggregation methods, How to calculate totals and deal with missing data, Data should be aggregated by the average of each column (, The function requires at a minimum either the, The function can calculate one or multiple aggregation methods, including using custom functions, The function returns a DataFrame which can be filtered or queried as any other DataFrame. rev2023.4.17.43393. The sort_index() method sorts the DataFrame. For instance, if we take the above example, we can create a pivot table named "product_category" that has columns for the product ID and the category ID. Its time to check your learning! Laravel provides various methods to sort data by using the pivot table. assign headers based on existing row in dataframe in R, Replace characters from a column of a data frame R, How to make test case fail if a django template has a rendering error that would silently fail in production. If True, NumPy Tutorial - Everything You Need to Know to Get Started, Pandas nlargest(), nsmallest(), swap_level(), stack(),, Handling Missing Data in Pandas: backfill(), bfill(),, Pandas mad(), min(), max(), mean(), median(), and mode(), Pandas append(), assign(), compare(), join(), merge(),, Finxter Feedback from ~1000 Python Developers, Yum on EC2 Linux Causes ModuleNotFoundError: No module named dnf [Fixed]. Sorry, my mistake. I'd like to sort the table by the id column, so that the largest number appear on top like: You need DataFrame.reset_index, DataFrame.sort_values and DataFrame.set_index: Option 1 computing margins. This parameter will not include any columns where the value(s) are, This parameter is the name of the row/column containing the totals if. You can use the following basic syntax to add a filtering condition to a pandas pivot table: df [df.col1 == 'A'].pivot_table(index='col1', values= ['col2', 'col3'], aggfunc='sum') This particular example creates a pivot table that displays the sum of values in col2 and col3, grouped by col1. The levels in the pivot table will be stored in MultiIndex objects Using sorting, how would you get the second-highest sales across all regions? The levels in the pivot table will be stored in MultiIndex objects (hierarchical indexes) on the index and . Line [2] creates a list of headings for the columns (see above for definitions). We can also fill missing values using the fill_value parameter. Eloquent creates the pivot table from the second argument to the belongsToMany() method. In my case, I have the probability of accident at postcode and probability of accident at address to sort descending and display the results in a heatmap. While columns added a horizontal dimension, we can also specify multiple indices when there is a logical hierarchy in our data. Do not include columns whose entries are all NaN. Now that youve created your first pivot table in Pandas, lets work on changing the aggregation methods. Syntax: pandas. Connect and share knowledge within a single location that is structured and easy to search. Different methods for sorting data in Laravel. We can sort the data by the 'sales' column. This is because the default argument is 'na_position='last'. value column. Comment * document.getElementById("comment").setAttribute( "id", "aae420b7cbfdfd288b9b3c1911750e27" );document.getElementById("e0c06578eb").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. It has foreign keys to both tables, which are used to connect the records in each table. Existence of rational points on generalized Fermat quintics. Statology Study is the ultimate online statistics study guide that helps you study and practice all of the core concepts taught in any elementary statistics course and makes your life so much easier as a student. This was just an introduction to sorting with Pandas. 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When querying these relationships, you might want to sort the results based on the data in the pivot table. Required fields are marked *. Similar to how you were able to pass in a list of columns to sort by multiple columns, youre also able to pass in a list of boolean values to modify the sort order of the various columns. Fix OpenAI API Limit Reached Example AutoGPT, Organize Files by Suffix: How I Created a Python Script to Automate a Boring Task, How I Created a Translation and Counter App using Django, How I Created a Translation and Counter App using Django (2/2), 7 Best Ways to Remove Unicode Characters in Python, Dictionary of Lists to DataFrame Python Conversion. You may wonder: Is there a way to not merely survive, but. They can automatically sort, count, total, or average data stored in one table. This function is useful to massage a DataFrame into a format where one or more columns are identifier variables ( id_vars ), while all other columns, considered measured variables ( value_vars ), are "unpivoted" to the row axis, leaving just two non-identifier columns, 'variable' and 'value'. There are a number of exercises below, for which you can find the solutions by clicking on the toggle. But, say, for example we wanted to filter to only show records where the Sales average was larger than the overall average, we could write the following filter: This allows us to see exactly what we want to see! Thankfully, Pandas gives you extensive control of how these values are sorted. Add the following code to the top of each code snippet. Hi there! The parameter takes either a single column as a string or a list of columns as a list of strings. Some methods may be more effective than others, and that Pandas offers in-built methods to help you write cleaner looking code. No problem! So make sure to specify every level of the MultiIndex when sorting this kind of DataFrame. In Python, how can an image stored as a NumPy array be scaled in size? Finxter is here to help you stay ahead of the curve, so you can keep winning as paradigms shift. If dict is passed, the key is column to aggregate and value We can load the DataFrame from the file hosted on my GitHub page, using the pd.read_excel() function. This is where the pivot table comes in. Laravel provides various methods to sort data based on specific columns in ascending or descending order. One of the essential features that Laravel provides is the ability to work with relational databases. If an array is passed, The code is as follows: Here, we input the column to sort by (EU_Sales) and organize our data so that the highest values come first (set ascending to False). In python (pandas.DataFrame), is there an easy/efficient way to create all possible combinations of one column from each index, scoring by value? Because of this, Pandas provides a parameter, fill_value=, which enables you to pass in a value to fill these missing data points. valuescolumn to aggregate. Can members of the media be held legally responsible for leaking documents they never agreed to keep secret? For example, say we have a list of countries with associated details. on the rows and columns. When applied to a DataFrame/Series, these methods evaluate and modify the missing elements. hierarchical columns whose top level are the function names Variable context between two blocks in Django templates? This parameter is an integer, level name, or a list of integers/level name(s). I overpaid the IRS. df.sort_values(by='EU_Sales', ascending=False).head(5), df.sort_values(by=['Year','Global_Sales']).head(1), df['NA_Sales'].sort_values(ascending=False).head(4), df_pivot = df.loc[df['Platform'].isin(['PC','XOne','PS4'])]. To sort our newly created pivot table, we use the following code: df_pivot.sort_values (by= ('Global_Sales','XOne'), ascending=False) Here, you can see we pass a tuple into the .sort_values () function. With this question, we only care about the sales values, which means we dont need the video game metadata like Name and Platform. In this case, we have written Year first and Global_Sales second, which means the function will sort the DataFrame by its publishing year first and then its sales. You can also sort the roles while defining the relationship in the User model. However, it seems that this applies more to very large data sets, as even for one with 16,291 rows there was no difference. Because pivot tables can often be quite large, filtering a pivot table can focus the results quite a bit. After loading the DataFrame, lets print out the first five rows using the .head() method: We can see that the DataFrame has four different columns, of three different data types: Lets dive into how to sort our Pandas DataFrame using the .sort_values() method. Join our free email academy with daily emails teaching exponential with 1000+ tutorials on AI, data science, Python, freelancing, and Blockchain development! created_at, range, or role_id. how to sort pandas dataframe from one column. This allows us to spot differences between groupings in a format thats easy to read. This method can accomplish this task. This parameter can be a list of functions. Keys to group by on the pivot table index. You then iterate over the $oldest_roles collection and print the name of each role, preceded by a message indicating that these are the roles after sorting by the oldest pivot. Is there a way to use any communication without a CPU? Name of the row / column that will contain the totals Python3 Sqlite3 - How to Escape executescript Properly? (hierarchical indexes) on the index and columns of the result DataFrame. datagy, where is your sample file sample_pivot.xlsx , We can see how easy it was to add a whole other dimension of data. Why is Noether's theorem not guaranteed by calculus? You can see the output below. This may not always be ideal. There is also a lot that you can accomplish with just a few parameters. The pivot table holds the relationships between the two tables, and it allows you to query, add, and remove data efficiently. Hi Dup, thanks for your comment! df_pivot.columns When sorting by a MultiIndex column, you need to make sure to specify all levels of the MultiIndex in question. Line [2] saves the first five (5) rows of the CSV file to, Line [4] creates a pivot table from the DataFrame based on the Population and Capital columns. Corporate Trainer (staff of 30+) Missing values can often cause unexpected results. These features can be incredibly useful when you need to manipulate data. Comment * document.getElementById("comment").setAttribute( "id", "a3add8aff2df7636beaad5eca78a6c89" );document.getElementById("e0c06578eb").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. This is because the column name we want to sort by is (Global_Sales, XOne). columnsstring. In the examples below, were using the Pandas function, rather than the DataFrame function. read_csv ( 'pivot_example.csv' ) df_fills. In this section, you'll learn how to filter a Pandas pivot table. For example, in a database for an e-commerce website, a product may be associated with multiple categories, and each category may have multiple products. This looks quite different from the result we achieved in our first example. Python For Loop Tutorial All You Need to Know! Lets see how we can pass in a function that calculates the mean of a column without any outliers. Python ,python,pandas,numpy,pivot-table,Python,Pandas,Numpy,Pivot Table The pivot table acts as a bridge table that holds the foreign keys of both tables and stores the additional data related to the relationship. Can I ask for a refund or credit next year? Pandas, however, also provides you with the option to sort the data in place. Line [3] outputs the result to the terminal. This is an effective method for drafting these pivot tables in pandas. Keys to group by on the pivot table column. In order to do the opposite, you can use the Pandas melt() function to convert a wide DataFrame into a long one. You retrieve the roles for the user with ID 1, this time sorted by the oldest pivot in the pivot table using oldestPivot('id'). It gets its name from the names of the tables it joins. In the examples above, we saw that the sort order defaulted to sort data in ascending order. How to force the race condition in transaction in django tests? If list of functions passed, the resulting pivot table will have Only one column is supported and Each row in the pivot table represents a product-category relationship. If an array is passed, it must be the same length as the data. Your terminal prompt may be different. The sorted DataFrame has been reorganized, so we can now see that the games with the most sales in the EU are not exactly the same as the games with the most sales globally. What we did here was sort first by the 'region' column in descending order (meaning reverse alphabetical). However, keep in mind that this modifies the index permanently. This first example aggregates values by taking the sum. Wide panel to long format. Should the alternative hypothesis always be the research hypothesis? If an array is passed, it must be the same length as the data. pandas.DataFrame.pivot_table# DataFrame. The levels in the pivot table will be stored in MultiIndex objects (hierarchical indexes) on the index and columns of the result DataFrame. Method 3: Use latestPivot () method. Previously, youd need to first generate the DataFrame and then pass in a method to sort the data. Remember that theres more than one way to sort a DataFrame. The You can also sort by a pivot table using the orderByPivot() method. Learn more about us hereand follow us on Twitter. The reason this happens is that were calculating the mean, by default. Pandas provides a similar function called pivot_table (). It takes a number of arguments: data: a DataFrame object. For this example, a comma-delimited CSV file is read into a DataFrame. We have created a pivot table called role_user with two columns: user_id and role_id. If you have multiple columns you want to sort by, or if you just need to sort a series, Pandas has built-in functionality that can help with that. For this example, a comma-delimited CSV file is read in. We and our partners share information on your use of this website to help improve your experience. Sorting data is helpful when you have large amounts of data in a PivotTable or PivotChart. Is there a way in pandas to search in one dataframe to determine what happen in another dataframe? If we want to see totals. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, @ScottBoston - really hard question, I try find some issues about it in pandas github but uncessfully. Required fields are marked *. The pandas produced pivot table can be further extended to report 'marginal' items, that is, row and column based total amounts, by setting margins=True. These comprise the index levels/columns to sort. it is being used as the same manner as column values. Parameters. Lets say we wanted to calculate the average of a column, removing the top and bottom 10% of the data. hierarchical columns whose top level are the function names What is the recommended directory layout for third-party static files in Django projects? Line [6] creates a pivot from the DataFrame and. We can have an idea of what can we achieve with the pivot table. How can I convert rows to columns (with custom names) after grouping? The following example shows how to use this syntax in practice. You can sort by as many columns as you want with this function, simply by passing a list of column names. The levels in This DataFrame sorts on the index Country column. Video pandas.pivot_table (data, values=None, index=None, columns=None, aggfunc='mean', fill_value=None, margins=False, dropna=True, margins_name='All') create a spreadsheet-style pivot table as a DataFrame. float_format = '$ {:,.2f}'. list can contain any of the other types (except list). How do I check whether a file exists without exceptions? This parameter can be a string, object, or a list of the previous and is optional. So, a product can have multiple rows in the pivot table, each with a different category ID, and vice versa. Disruptive technologies such as AI, crypto, and automation already eliminate entire industries. You could combine .sort_values() with .iloc: In this tutorial, you learned how to sort your Pandas DataFrame using the .sort_values() method. it is being used as the same manner as column values. If margins=True, special All columns and rows year df_fills [ 'Month'] = pd. Is there any difference between numpy.std and excel STDEV function? Sorting data is an essential method to better understand your data. If we applied the method to the DataFrame directly, this would be implied. All rights reserved. Three (3) of each character are required (9 characters). While it may look more complex, accessing data in a multi-index Pandas DataFrame works quite similarly to accessing data in any other DataFrame. Here, you'll learn all about Python, including how best to use it for data science. Welcome to datagy.io! If True: only show observed values for categorical groupers. A pivot table allows us to draw insights from data. From the explanation and examples of the many-to-many (user-role) relationship, it is not right to place the user_id or role_id on the roles or users table because that would mean each user or role belongs to one foreign id, respectively. Do not include columns whose entries are all NaN. Use the same DataFrame as you did throughout the tutorial. pandas.pivot_table(data, values=None, index=None, columns=None, aggfunc='mean', fill_value=None, margins=False, dropna=True, margins_name='All', observed=False, sort=True) [source] # Create a spreadsheet-style pivot table as a DataFrame. If you look further down, it will show the games with a number as the first character of its name next, and then after that those that start with letters. It may contain any other data types (but not a list). Sort your DataFrame first by gender and then by region, both in descending order. Use Pandas.pivot_table () method with different variants. Copyright . A warning tells me that pd.append will not be available in the future . Well add in an additional parameter to parse our 'date' column as dates. These are great when you want to aggregate and present data in an easy-to-read table. That helps. Option 2 However, I had to use sort_remaining=False for self-explanatory reasons and kind='mergesort' because mergesort is a stable sort and won't mess with the pre-existing order within groups defined by the 'month' level. (hierarchical indexes) on the index and columns of the result DataFrame. Making statements based on opinion; back them up with references or personal experience. Asking for help, clarification, or responding to other answers. The column headings display the following characters. The user_id is a foreign key on the users table, while the role_id references the id on the roles table. Lets now try to change our behavior to produce the sum of our sales across all regions: Similarly, we can specify multiple aggregation methods to a Pandas pivot table. Lets start by sorting our data by a single column. While the index= parameter splits the data vertically, the columns= parameter groups and splits the data horizontally. indexstring, optional. Specifies if the result should be sorted. To represent this type of relationship, you need to create two separate tables: one for products and one for categories. You can see the result below. In order to do this, you can pass in a dictionary containing the following key-value pair format: 'column': function. Windows Web Mac Before you sort Values belonging to that region are subsequently sorted by the 'sales' column. By default, Pandas will use the .mean() method to aggregate data. I have found a solution that uses pd.append. The method provides an incredible array of parameters that allow you to customize how your data is sorted to your heart's content! If. We can sort values in a Pandas DataFrame by using the .sort_values () method. Let's prepare for tomorrow's change today. Privacy Policy. A Medium publication sharing concepts, ideas and codes. Perform a quick search across GoLinuxCloud. To answer this question, were going to create a pivot table. Default is 0 (column). If margins=True, special All columns and rows If dict is passed, the key is column to aggregate and value This is quite easy and only requires you to pass in a list of functions and the function will be applied to all values columns. This is where the power of Pandas really comes through, allowing you to calculate complex analyses with ease. Happens is that were calculating the mean, by default they can sort. Name of the essential features that laravel provides is the ability to work with relational databases to column. One of the result we achieved in our first example calculate the of. = pd and is optional: data: a DataFrame object to manipulate data drafting these pivot in! By sorting our data the toggle a DataFrame agreed to keep secret a Pandas! Be quite large, filtering a pivot table allows us to spot differences groupings... Sort first by the region column and then pass in a function that calculates the mean of a column any! One for products and one for categories the same length as the same length the. Pandas provides a similar function called pivot_table ( ) method order ( meaning reverse alphabetical ) by on the and! Pandas will use the columns= parameter groups and splits the data insights from data, the! And columns of the result DataFrame have created a pivot table can focus results! The relationships between the two tables, which are used to create separate!, by default with the option to sort the data in a function that calculates the mean by! The 'sales ' column create a pivot table in Pandas to search in one to. By sorting our data by the region column and pandas pivot table sort by value by the 'sales ' column as list... To read missing values using the fill_value parameter to represent this Type of relationship, you need to make to! Or columns, apply to each column top and bottom 10 % of the result we achieved in first. We achieved in our first example a warning tells me that pd.append will not be available in the User.., special all columns and rows year df_fills [ & # x27 ; pivot_example.csv & # x27 ; learn! Previous and is optional tells me that pd.append will not be available in the table! Dataframe as you want with this function, rather than the DataFrame directly, this would be.. And one for categories an integer, level name, or average data stored one... Trainer ( staff of 30+ ) missing values can often cause unexpected results the column. Index= parameter splits the data pandas pivot table sort by value the index permanently table using the (. To a DataFrame/Series easy it was to add a whole other dimension of data but not a of! The option pandas pivot table sort by value sort a DataFrame table, each with a different ID... A file exists without exceptions table from the second argument to the DataFrame directly, would. That pd.append will not be available in the future parameter takes either a single location is... Back them up with references or personal experience defining the relationship in the pivot table because the column we. From the DataFrame directly, this would be implied they can automatically sort, count, total, or to! With ease quite similarly to accessing data in an easy-to-read table be in a function calculates! This was just an introduction to sorting with Pandas be quite large, filtering a pivot table allows us spot. The index= parameter splits the data in place when sorting by a pivot table index say we wanted calculate! All NaN data is an integer, level name, or a list of integers/level (. We want to sort by as many columns as you want to a... In this section, you might want to sort the results quite a bit two pandas pivot table sort by value Django. The top of each character are required ( 9 characters ) with the option to sort data in pivot... Containing the following code to the belongsToMany ( ) method foreign keys to group by on the in. Survive, but relational databases DataFrame object relationship in the examples above, we also! That is structured and easy to search Pandas pivot table holds the between! Region are subsequently sorted by the Type column Pandas, lets work changing. Do I check whether a file exists without exceptions above, we saw that the sort order defaulted sort... Calculating the mean, by default connect the records in each table, for you... Series format and applies to each column index is selected, apply to each row learn about! Relationships, you can also fill missing values can often cause unexpected results quite different from the DataFrame,. Outputs the result DataFrame ( staff of 30+ ) missing values can often unexpected. The recommended directory layout for third-party static files in Django templates with Pandas MultiIndex when sorting a... Changing the aggregation methods specific columns in ascending order you & # x27 ; Month & # x27 ; learn. Where the power of Pandas really comes through, allowing you to calculate the average a. And that Pandas offers in-built methods to help you stay ahead of the previous is. Will use the columns= parameter groups and splits the data table index columns ( with custom )... Line [ 2 ] creates a list of integers/level name ( s ) some may... ; pivot_example.csv & # x27 ; array be scaled in size ( meaning reverse )! Df_Fills [ & # x27 ; pivot_example.csv & # x27 ; ] = pd each row can... The mean of a column without any outliers by gender and then by region, both descending. Custom names ) after grouping pair format: 'column ': function all about Python, how an! Will use the columns= parameter groups and splits the data by a location. Not a list of columns as a list of headings for the columns ( above! Can members of the data by the sales column df_pivot.columns when sorting by a MultiIndex column removing. Ability to work with relational databases ( with custom names ) after grouping gives extensive... Pandas function, simply by passing a list of integers/level name ( s ) first generate the directly! By calculus 'column ': function lets work on changing the aggregation methods represent this Type of relationship, need! For data science or a label help you stay ahead of the curve so... On the index permanently 'na_position='last ' thankfully, Pandas will use the same length the. Parameter to split the data vertically, the columns= parameter to parse our 'date ' column as a list integers/level... Specified index or column from a DataFrame/Series, these methods evaluate and modify the missing elements make pandas.read_excel engine='openpyxl... You may wonder: is there a way in Pandas to search sorting this kind of DataFrame ability to with. Create spreadsheet-style pivot tables can often be quite large, filtering a pivot table we want aggregate! 'Region ' column in increasing order make pandas.read_excel with engine='openpyxl ' behave like did. ) or index is selected, apply to each column the relationships between the two tables, it... Want to aggregate data using the fill_value parameter better understand your data 10 % of the essential that... The average of a column, you need to first generate the DataFrame and by the... Is optional, crypto, and that Pandas offers in-built methods pandas pivot table sort by value sort a DataFrame a tells. Two blocks in Django projects calculate complex analyses with ease if the installations were successful, a message displays the. Of this website to help you stay ahead of the tables it.. A MultiIndex column, removing the top and bottom 10 % of the result DataFrame now that youve created first. Taking the sum on opinion ; back them up with references or personal.! And columns of the MultiIndex in question Pandas provides a similar function pivot_table... A comma-delimited CSV file is read in of columns as a list.! Column names levels of the essential features that laravel provides various methods to sort the roles.! List can contain any other data types ( except list ) the race in... Level are the function names Variable context between two blocks in Django tests more one... Dataframe first by gender and then by region, both in descending.. Pandas pivot table using the fill_value parameter are required ( 9 characters ) ; ] = pd mean of column! And splits the data a dictionary containing the following code to the DataFrame function the data by region! Lets see how we can sort the data by the Type column top and bottom 10 % of the /! Data is helpful when you have large amounts of data spreadsheet-style pivot in. Unexpected results True: only show observed values for categorical groupers all you need to generate! Sorting our data ; back them up with references or personal experience 1 ) columns! Column without any outliers easy it was to add a whole other dimension of data place... Is structured and easy to read column values to columns ( with custom ). It for data science 'sales ' column in descending order being used as same! Objects ( hierarchical indexes ) on the users table, each with different... To group by on the index and columns of the essential features that laravel provides various methods to help your. Should the alternative hypothesis always be the same of column names pivot_example.csv #... Theorem not guaranteed by calculus the research hypothesis all columns and rows year df_fills [ & # ;! The mean, by default not showing nanoseconds by default within a location... Multiindex in question between the two tables, and automation already eliminate entire industries for this example, a can! An effective method for drafting these pivot tables in Pandas 'sales ' column but in descending order meaning... [ 6 ] creates a pivot table and that Pandas offers in-built methods to sort data based on specific in!

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pandas pivot table sort by value