How to create Pivot Table with Python Dataframe based on columns's substring values and counts?












0















Dataset:





Item_Identifier Item_Weight Item_Fat_Content Item_Visibility
0 FDA15 9.30 Low Fat 0.016047
1 DRC01 5.92 Regular 0.019278
2 FDN15 17.50 Low Fat 0.016760
3 FDX07 19.20 Regular 0.065953
4 NCD19 8.93 Low Fat 0.065953

Item_Type Item_MRP Outlet_Identifier
0 Dairy 249.8092 OUT049
1 Soft Drinks 48.2692 OUT018
2 Meat 141.6180 OUT049
3 Fruits and Vegetables 182.0950 OUT010
4 Household 53.8614 OUT013

Outlet_Establishment_Year Outlet_Size Outlet_Location_Type
0 1999 Medium Tier 1
1 2009 Medium Tier 3
2 1999 Medium Tier 1
3 1998 Medium Tier 3
4 1987 High Tier 3

Outlet_Type Item_Type_new
0 Supermarket Type1 perishable
1 Supermarket Type2 non-perishable
2 Supermarket Type1 perishable
3 Grocery Store perishable
4 Supermarket Type1 non-perishable



Pivotal Table:

Index: Item_Type, Columns: Substring of Item Identifiers, Values: counts.



Expected Output:




DR FD NC
Baking Goods 0 1086 0
Breads 0 416 0
Breakfast 0 186 0
Canned 0 1084 0
Dairy 229 907 0
Frozen Foods 0 1426 0
Fruits and Vegetables 0 2013 0
Hard Drinks 362 0 0
Health and Hygiene 0 0 858
Household 0 0 1548
Meat 0 736 0
Others 0 0 280
Seafood 0 89 0
Snack Foods 0 1989 0
Soft Drinks 726 0 0
Starchy Foods 0 269 0









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  • 1





    Your sample output is unclear. And you should show what you have tried to give a clearer picture

    – ycx
    Jan 3 at 4:08
















0















Dataset:





Item_Identifier Item_Weight Item_Fat_Content Item_Visibility
0 FDA15 9.30 Low Fat 0.016047
1 DRC01 5.92 Regular 0.019278
2 FDN15 17.50 Low Fat 0.016760
3 FDX07 19.20 Regular 0.065953
4 NCD19 8.93 Low Fat 0.065953

Item_Type Item_MRP Outlet_Identifier
0 Dairy 249.8092 OUT049
1 Soft Drinks 48.2692 OUT018
2 Meat 141.6180 OUT049
3 Fruits and Vegetables 182.0950 OUT010
4 Household 53.8614 OUT013

Outlet_Establishment_Year Outlet_Size Outlet_Location_Type
0 1999 Medium Tier 1
1 2009 Medium Tier 3
2 1999 Medium Tier 1
3 1998 Medium Tier 3
4 1987 High Tier 3

Outlet_Type Item_Type_new
0 Supermarket Type1 perishable
1 Supermarket Type2 non-perishable
2 Supermarket Type1 perishable
3 Grocery Store perishable
4 Supermarket Type1 non-perishable



Pivotal Table:

Index: Item_Type, Columns: Substring of Item Identifiers, Values: counts.



Expected Output:




DR FD NC
Baking Goods 0 1086 0
Breads 0 416 0
Breakfast 0 186 0
Canned 0 1084 0
Dairy 229 907 0
Frozen Foods 0 1426 0
Fruits and Vegetables 0 2013 0
Hard Drinks 362 0 0
Health and Hygiene 0 0 858
Household 0 0 1548
Meat 0 736 0
Others 0 0 280
Seafood 0 89 0
Snack Foods 0 1989 0
Soft Drinks 726 0 0
Starchy Foods 0 269 0









share|improve this question




















  • 1





    Your sample output is unclear. And you should show what you have tried to give a clearer picture

    – ycx
    Jan 3 at 4:08














0












0








0








Dataset:





Item_Identifier Item_Weight Item_Fat_Content Item_Visibility
0 FDA15 9.30 Low Fat 0.016047
1 DRC01 5.92 Regular 0.019278
2 FDN15 17.50 Low Fat 0.016760
3 FDX07 19.20 Regular 0.065953
4 NCD19 8.93 Low Fat 0.065953

Item_Type Item_MRP Outlet_Identifier
0 Dairy 249.8092 OUT049
1 Soft Drinks 48.2692 OUT018
2 Meat 141.6180 OUT049
3 Fruits and Vegetables 182.0950 OUT010
4 Household 53.8614 OUT013

Outlet_Establishment_Year Outlet_Size Outlet_Location_Type
0 1999 Medium Tier 1
1 2009 Medium Tier 3
2 1999 Medium Tier 1
3 1998 Medium Tier 3
4 1987 High Tier 3

Outlet_Type Item_Type_new
0 Supermarket Type1 perishable
1 Supermarket Type2 non-perishable
2 Supermarket Type1 perishable
3 Grocery Store perishable
4 Supermarket Type1 non-perishable



Pivotal Table:

Index: Item_Type, Columns: Substring of Item Identifiers, Values: counts.



Expected Output:




DR FD NC
Baking Goods 0 1086 0
Breads 0 416 0
Breakfast 0 186 0
Canned 0 1084 0
Dairy 229 907 0
Frozen Foods 0 1426 0
Fruits and Vegetables 0 2013 0
Hard Drinks 362 0 0
Health and Hygiene 0 0 858
Household 0 0 1548
Meat 0 736 0
Others 0 0 280
Seafood 0 89 0
Snack Foods 0 1989 0
Soft Drinks 726 0 0
Starchy Foods 0 269 0









share|improve this question
















Dataset:





Item_Identifier Item_Weight Item_Fat_Content Item_Visibility
0 FDA15 9.30 Low Fat 0.016047
1 DRC01 5.92 Regular 0.019278
2 FDN15 17.50 Low Fat 0.016760
3 FDX07 19.20 Regular 0.065953
4 NCD19 8.93 Low Fat 0.065953

Item_Type Item_MRP Outlet_Identifier
0 Dairy 249.8092 OUT049
1 Soft Drinks 48.2692 OUT018
2 Meat 141.6180 OUT049
3 Fruits and Vegetables 182.0950 OUT010
4 Household 53.8614 OUT013

Outlet_Establishment_Year Outlet_Size Outlet_Location_Type
0 1999 Medium Tier 1
1 2009 Medium Tier 3
2 1999 Medium Tier 1
3 1998 Medium Tier 3
4 1987 High Tier 3

Outlet_Type Item_Type_new
0 Supermarket Type1 perishable
1 Supermarket Type2 non-perishable
2 Supermarket Type1 perishable
3 Grocery Store perishable
4 Supermarket Type1 non-perishable



Pivotal Table:

Index: Item_Type, Columns: Substring of Item Identifiers, Values: counts.



Expected Output:




DR FD NC
Baking Goods 0 1086 0
Breads 0 416 0
Breakfast 0 186 0
Canned 0 1084 0
Dairy 229 907 0
Frozen Foods 0 1426 0
Fruits and Vegetables 0 2013 0
Hard Drinks 362 0 0
Health and Hygiene 0 0 858
Household 0 0 1548
Meat 0 736 0
Others 0 0 280
Seafood 0 89 0
Snack Foods 0 1989 0
Soft Drinks 726 0 0
Starchy Foods 0 269 0






python python-3.x pandas dataframe






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edited Jan 3 at 3:57









Stephen Rauch

30k153758




30k153758










asked Jan 3 at 3:56









datascientist110datascientist110

205




205








  • 1





    Your sample output is unclear. And you should show what you have tried to give a clearer picture

    – ycx
    Jan 3 at 4:08














  • 1





    Your sample output is unclear. And you should show what you have tried to give a clearer picture

    – ycx
    Jan 3 at 4:08








1




1





Your sample output is unclear. And you should show what you have tried to give a clearer picture

– ycx
Jan 3 at 4:08





Your sample output is unclear. And you should show what you have tried to give a clearer picture

– ycx
Jan 3 at 4:08












1 Answer
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oldest

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Create a new columns which is sub-string of item Item_Identifier. and then create pivot_table based on them.



Here is the code. (assuming the df is the dataframe with dataset)



df['Item_Identifier_substr'] = df['Item_Identifier'].str.left(2)
pivot_df = df.pivot_table(index = 'Item_Type', columns = 'Item_Identifier_substr', values='Item_Identifier', aggfunc='count')

pivot_df


If you like it, pls vote my answer.






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    1 Answer
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    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    1














    Create a new columns which is sub-string of item Item_Identifier. and then create pivot_table based on them.



    Here is the code. (assuming the df is the dataframe with dataset)



    df['Item_Identifier_substr'] = df['Item_Identifier'].str.left(2)
    pivot_df = df.pivot_table(index = 'Item_Type', columns = 'Item_Identifier_substr', values='Item_Identifier', aggfunc='count')

    pivot_df


    If you like it, pls vote my answer.






    share|improve this answer






























      1














      Create a new columns which is sub-string of item Item_Identifier. and then create pivot_table based on them.



      Here is the code. (assuming the df is the dataframe with dataset)



      df['Item_Identifier_substr'] = df['Item_Identifier'].str.left(2)
      pivot_df = df.pivot_table(index = 'Item_Type', columns = 'Item_Identifier_substr', values='Item_Identifier', aggfunc='count')

      pivot_df


      If you like it, pls vote my answer.






      share|improve this answer




























        1












        1








        1







        Create a new columns which is sub-string of item Item_Identifier. and then create pivot_table based on them.



        Here is the code. (assuming the df is the dataframe with dataset)



        df['Item_Identifier_substr'] = df['Item_Identifier'].str.left(2)
        pivot_df = df.pivot_table(index = 'Item_Type', columns = 'Item_Identifier_substr', values='Item_Identifier', aggfunc='count')

        pivot_df


        If you like it, pls vote my answer.






        share|improve this answer















        Create a new columns which is sub-string of item Item_Identifier. and then create pivot_table based on them.



        Here is the code. (assuming the df is the dataframe with dataset)



        df['Item_Identifier_substr'] = df['Item_Identifier'].str.left(2)
        pivot_df = df.pivot_table(index = 'Item_Type', columns = 'Item_Identifier_substr', values='Item_Identifier', aggfunc='count')

        pivot_df


        If you like it, pls vote my answer.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Jan 3 at 23:35









        elPastor

        2,86332142




        2,86332142










        answered Jan 3 at 5:11









        Yong WangYong Wang

        4613




        4613
































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