pivot-table

问题 I am writing a report that requires the generation of a number of pivot tables in Excel. I would like to think there is a way to do this in R so that I can avoid Excel. I would like output like the screenshot below (teacher names redacted). As far as I can tell, I could use the reshape package to calculate the aggregate values, but I'd need to do that a number of times and somehow get all of the data in the correct order. At that point, I should just be doing it in Excel. Does anyone have any

问题 Consider the following dataframe: test = pd.DataFrame({'A': [datetime.datetime.now(), datetime.datetime.now()], 'B': [1, 2]}) If I use pivot_table like below then everything is fine: test.pivot_table(index = 'A', aggfunc = {'B': 'mean'}, margins = True) However, if I do the following, I can't set margins = True (throws the error KeyError: 'A' ): test.pivot_table(index = test['A'], aggfunc = {'B': 'mean'}, margins = True) I am really confused. Let's say I need do something like below AND need

问题 I need to receive values from a table where a condition is met. For example I have names and I need to take all values from a table where the name appears. For example the table consists of date, name, expenditures: Date Name Expenditures 2019-01-28 Sara 2.45 2019-04-26 John 32.67 2019-05-07 Peter 55.88 2019-06-14 Sara 62.09 2019-07-03 Sara 12.94 2019-09-30 Peter 5.64 I need to receive all expenditures which has been made by Sara and the Date days when it was done. The result should be the

问题 I have a pivot table that calculates the count of pallets of each type of product and the sum of the age I want to add a calculated field/column with the average age of each product R/Q in this case. But when I try and add calculated field I only get options from the original table, meaning I can't get the count and sum of the apples. Can this be done? EDIT: I want this to be part of the pivot table since I want to be able to sort on this calculated value. If I add this value "outside" I can

问题 I'm trying to create a simple pivot table with subtotals, excel-style, however I can't find a method using Pandas. I've tried the solution Wes suggested in another subtotal-related question, however that doesn't give the expected results. Below the steps to reproduce it: Create the sample data: sample_data = {'customer': ['A', 'A', 'A', 'B', 'B', 'B', 'A', 'A', 'A', 'B', 'B', 'B'], 'product': ['astro','ball','car','astro','ball', 'car', 'astro', 'ball', 'car','astro','ball','car'], 'week': [1

问题 I'm trying to create a simple pivot table with subtotals, excel-style, however I can't find a method using Pandas. I've tried the solution Wes suggested in another subtotal-related question, however that doesn't give the expected results. Below the steps to reproduce it: Create the sample data: sample_data = {'customer': ['A', 'A', 'A', 'B', 'B', 'B', 'A', 'A', 'A', 'B', 'B', 'B'], 'product': ['astro','ball','car','astro','ball', 'car', 'astro', 'ball', 'car','astro','ball','car'], 'week': [1

问题 I'm trying to create a simple pivot table with subtotals, excel-style, however I can't find a method using Pandas. I've tried the solution Wes suggested in another subtotal-related question, however that doesn't give the expected results. Below the steps to reproduce it: Create the sample data: sample_data = {'customer': ['A', 'A', 'A', 'B', 'B', 'B', 'A', 'A', 'A', 'B', 'B', 'B'], 'product': ['astro','ball','car','astro','ball', 'car', 'astro', 'ball', 'car','astro','ball','car'], 'week': [1

问题 I am trying to create pivotchart from a pivot table. How can it be done by using Apache POI? I searched Google but could not find any useful informaion. All information is about creating Pivot tables. 来源： https://stackoverflow.com/questions/45152505/creating-pivotchart-with-apache-poi-excel

问题 I am trying to create pivotchart from a pivot table. How can it be done by using Apache POI? I searched Google but could not find any useful informaion. All information is about creating Pivot tables. 来源： https://stackoverflow.com/questions/45152505/creating-pivotchart-with-apache-poi-excel

问题 I want to refresh pivot table after enter data to data sheet I read two previous questions [this][1] and [this][2]. there two way to do this one way is Right click your pivot table -> pivotTable Options -> Data -> Check Refresh Data when opening File this is working I want a automated way so I tried in this way FileInputStream inputStream = new FileInputStream(new File(excelFilePath)); workbook = new XSSFWorkbook(inputStream); XSSFSheet sheet = workbook.getSheet("Summary"); XSSFPivotTable