range

来源： https://stackoverflow.com/questions/11500539/python-indexerror-list-index-out-of-range

问题 Why do ranges which are initialized with different values compare equal to one another in Python 3? When I execute the following commands in my interpreter: >>> r1 = range(0) >>> r2 = range(2, 2, 2) >>> r1 == r2 True The result is True . Why is this so? Why are two different range objects with different parameter values treated as equal? 回答1: The range objects are special: Python will compare range objects as Sequences . What that essentially means is that the comparison doesn't evaluate how

问题 Why do ranges which are initialized with different values compare equal to one another in Python 3? When I execute the following commands in my interpreter: >>> r1 = range(0) >>> r2 = range(2, 2, 2) >>> r1 == r2 True The result is True . Why is this so? Why are two different range objects with different parameter values treated as equal? 回答1: The range objects are special: Python will compare range objects as Sequences . What that essentially means is that the comparison doesn't evaluate how

问题 I am trying to copy a range of data from a Excel workbook to another workbook without the need of selecting any workbook during this process and using worksheet object names. I want to do this because the selection process: Windows("SourceWorksheet").Activate - Sheet("SourceSheet").Select - Range("SourceRange").Copy - Windows("DestinationWorksheet").Activate - Sheet("DestinationSheet").Select - Range("DestinationRange").Paste is very slow compare with DestinationWorkBook.DestinationSheet

问题 I am trying to calculate average monthly value of PREMIUM for each POLICY_ID in monthly basis as shown below screenshot. When a customer updates his/her yearly PAYMENT_FREQUENCY to a value different than 12, I need to manually calculate the average monthly value for the PREMIUM. In addition, average monthly PREMIUM amount can be changed in time. For instance, for the POLICY_ID = 1, starting from "2015/11/01" average monthly premium increased from 120 to 240. How can I achieve the values shown

问题 Here is a first 10 columns of my dataframe: import pandas as pd df = pd.DataFrame({ '0': [373.60], '1': [442.83], '2': [259.21], '3': [293.05], '4': [332.79], '5': [360.03], '6': [676.55], '7': [481.67], '8': [486.59], '9': [561.65], '10': [491.75]}) And so on, actually my df contains 100000 columns. Min is a 109.59, and max is a 1703.35. I want to slice df into specific ranges with length of 3.98, and then define a ragne that contain a maximum amount of values. I mean, the ranges must be

问题 I need to convert a cell with a double to a precentage. I used a macro in excel and it says: Range("B5").Select Selection.Style = "Percent" When I do this in c#, it doesn't work: Excel.Range procentRange = xlWorksheet.get_Range("A1","A1"); procentRange.Style = "Percent"; Anybody knows how to do this? 回答1: I've found the anwser with help of JN Web Excel.Range procentRange = xlWorksheet.get_Range("A1","A1"); procentRange.NumberFormat = "###,##%"; So first you need a range, then set the decimals

问题 I am trying to find a way to copy a range in one workbook, in this case A6:J21,to another workbook. I thought it would be something like the following... currentWorksheet = xlWorkBook.Sheets.Item("Command Group") excelRange = currentWorksheet.Range("A6:J21") excelDestination = newXlSheet.Range("A6:J21") excelRange.Copy(excelDestination) But it gives me an error on excelRange.Copy(excelDestination) . The below code runs as expected, so I'm not sure where i'm going wrong here.. Dim xRng As

问题 I am trying to create a function that can take in both a range or an array to perform some further calculations. When an array passes, the function worked fine, but when the function is used on range in the worksheet, it gives me the VALUE! error. My code looks like: Function COMRET(data as variant, N as integer) Dim nrows as long If IsArray(data) Then N = UBound(data,1) Else N = data.rows.count End If '... some other calculations here End Function The problem seems to come from the

问题 I'm trying to copy multiple non-adjacent (non-contiguous) excel columns to an array but it's not working. Below is what I've tried... Public Function Test() Dim sh As Worksheet: Set sh = Application.Sheets("MyWorksheet") Dim lr As Long: lr = sh.Cells(sh.Rows.Count, 1).End(xlUp).row Dim r1 As Range: Set r1 = sh.Range("A1:A" & lr) Dim r2 As Range: Set r2 = sh.Range("C1:C" & lr) Dim rAll As Range: Set rAll = Union(r1, r2) 'Dim arr() As Variant: arr = Application.Transpose(rAll) <-- Throws Type