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CSV file read and sum and divide values



The 2019 Stack Overflow Developer Survey Results Are In
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)
The Ask Question Wizard is Live!
Data science time! April 2019 and salary with experienceSkip the headers when editing a csv file using PythonReading a huge .csv filescrapy, empty items that cause blank space in csvPython - Web Scraping - BeautifulSoup & CSVHow to Alter returned data format called from csv using pythonPlot a 2D graph from a csv file using matplotlib in Python in ubuntuPython: Reading in .csv data as dictionary and printing out data as dictionary to .csv file?Memory Error when exporting data to csv fileHow to convert n rows of xlsx to csv in Python while preserving date valuesLoad text from csv file with int and float columns into ndarray



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-1















In this case, new 2 columns needs to be added in new CSV file as mentioned below by percentage of not sold percentage ( by dividing the Not sold items ercentage, Item code count by counting the number of item codes in the CSV file




I have a CSV file (old csv file) which has the following values



ITEMCODE, Total Value, Not sold items, date
MEX, 300, 35, 2019-03-05
MIT, 245, 31, 2019-03-05
INT, 345, 32, 2019-03-05
MEX, 300, 35, 2019-03-05
MIT, 245, 31, 2019-03-05
INT, 345, 32, 2019-03-05


The result is required in new CSV file is



ITEMCODE, Total Value, Not sold items, date, Not sold Items percentage, item code count
MEX, 600, 70, 2019-03-05, < here i required Not sold items/Total Value>,2
MIT, 490, 62, 2019-03-05, < here i required Not sold items/Total Value>,2
INT, 690, 64, 2019-03-05, < here i required Not sold items/Total Value>,2









share|improve this question



















  • 1





    Welcome to Stack Overflow! Please take a moment to read How do I ask a good question? and How to create a Minimal, Complete, and Verifiable example.

    – Teasel
    Mar 22 at 6:36

















-1















In this case, new 2 columns needs to be added in new CSV file as mentioned below by percentage of not sold percentage ( by dividing the Not sold items ercentage, Item code count by counting the number of item codes in the CSV file




I have a CSV file (old csv file) which has the following values



ITEMCODE, Total Value, Not sold items, date
MEX, 300, 35, 2019-03-05
MIT, 245, 31, 2019-03-05
INT, 345, 32, 2019-03-05
MEX, 300, 35, 2019-03-05
MIT, 245, 31, 2019-03-05
INT, 345, 32, 2019-03-05


The result is required in new CSV file is



ITEMCODE, Total Value, Not sold items, date, Not sold Items percentage, item code count
MEX, 600, 70, 2019-03-05, < here i required Not sold items/Total Value>,2
MIT, 490, 62, 2019-03-05, < here i required Not sold items/Total Value>,2
INT, 690, 64, 2019-03-05, < here i required Not sold items/Total Value>,2









share|improve this question



















  • 1





    Welcome to Stack Overflow! Please take a moment to read How do I ask a good question? and How to create a Minimal, Complete, and Verifiable example.

    – Teasel
    Mar 22 at 6:36













-1












-1








-1








In this case, new 2 columns needs to be added in new CSV file as mentioned below by percentage of not sold percentage ( by dividing the Not sold items ercentage, Item code count by counting the number of item codes in the CSV file




I have a CSV file (old csv file) which has the following values



ITEMCODE, Total Value, Not sold items, date
MEX, 300, 35, 2019-03-05
MIT, 245, 31, 2019-03-05
INT, 345, 32, 2019-03-05
MEX, 300, 35, 2019-03-05
MIT, 245, 31, 2019-03-05
INT, 345, 32, 2019-03-05


The result is required in new CSV file is



ITEMCODE, Total Value, Not sold items, date, Not sold Items percentage, item code count
MEX, 600, 70, 2019-03-05, < here i required Not sold items/Total Value>,2
MIT, 490, 62, 2019-03-05, < here i required Not sold items/Total Value>,2
INT, 690, 64, 2019-03-05, < here i required Not sold items/Total Value>,2









share|improve this question
















In this case, new 2 columns needs to be added in new CSV file as mentioned below by percentage of not sold percentage ( by dividing the Not sold items ercentage, Item code count by counting the number of item codes in the CSV file




I have a CSV file (old csv file) which has the following values



ITEMCODE, Total Value, Not sold items, date
MEX, 300, 35, 2019-03-05
MIT, 245, 31, 2019-03-05
INT, 345, 32, 2019-03-05
MEX, 300, 35, 2019-03-05
MIT, 245, 31, 2019-03-05
INT, 345, 32, 2019-03-05


The result is required in new CSV file is



ITEMCODE, Total Value, Not sold items, date, Not sold Items percentage, item code count
MEX, 600, 70, 2019-03-05, < here i required Not sold items/Total Value>,2
MIT, 490, 62, 2019-03-05, < here i required Not sold items/Total Value>,2
INT, 690, 64, 2019-03-05, < here i required Not sold items/Total Value>,2






python-2.7






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 22 at 7:39









Stefan Becker

4,49521125




4,49521125










asked Mar 22 at 6:34









BabuBabu

12




12







  • 1





    Welcome to Stack Overflow! Please take a moment to read How do I ask a good question? and How to create a Minimal, Complete, and Verifiable example.

    – Teasel
    Mar 22 at 6:36












  • 1





    Welcome to Stack Overflow! Please take a moment to read How do I ask a good question? and How to create a Minimal, Complete, and Verifiable example.

    – Teasel
    Mar 22 at 6:36







1




1





Welcome to Stack Overflow! Please take a moment to read How do I ask a good question? and How to create a Minimal, Complete, and Verifiable example.

– Teasel
Mar 22 at 6:36





Welcome to Stack Overflow! Please take a moment to read How do I ask a good question? and How to create a Minimal, Complete, and Verifiable example.

– Teasel
Mar 22 at 6:36












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