pivot-table

问题 I have a Excel sheet containing too much raw data. Now I want to change the representation of the data in specific format in another Excel sheet in same workbook using Pivot Table facility. As of now to represent the data in required format I am doing few manual steps in Excel, which are mentioned below as such steps provide me resultant Format required by Client: Select the sheet Insert Tab --> Pivot Table Create Pivot Table Dialog Appear:Select a Table from the source sheet (Choose the data

问题 I have a Excel sheet containing too much raw data. Now I want to change the representation of the data in specific format in another Excel sheet in same workbook using Pivot Table facility. As of now to represent the data in required format I am doing few manual steps in Excel, which are mentioned below as such steps provide me resultant Format required by Client: Select the sheet Insert Tab --> Pivot Table Create Pivot Table Dialog Appear:Select a Table from the source sheet (Choose the data

问题 I have 4 mySQL tables namely Exams, Marks, Student and Subject. Sql with data is provided below. I need the output like below screenshot. Marks is calculated from all Marks added together for the particular subject and student pair with their proper Weightage in Percentage (Exams with 0 Weightage are ignored) I tried using the below query but the result didn't gave the cumulative marks so need help. SET @sql = NULL; SELECT GROUP_CONCAT(DISTINCT CONCAT('MAX(IF(sj.SubjectId = ''', SubjectId,'''

问题 When running the code I am facing following error. error - The column label 'Avg_Threat_Score' is not unique. I was creating a pivot table and wanted to sort the value from high to low. pt = df.pivot_table(index = 'User Name',values = ['Threat Score', 'Score'], aggfunc = { 'Threat Score': np.mean, 'Score' :[np.mean, lambda x: len(x.dropna())] }, margins = False) new_col =['User Name Count', 'AVG_TH_Score', 'Avg_Threat_Score'] pt.columns = [new_col] #befor this code is working, after that now

问题 When running the code I am facing following error. error - The column label 'Avg_Threat_Score' is not unique. I was creating a pivot table and wanted to sort the value from high to low. pt = df.pivot_table(index = 'User Name',values = ['Threat Score', 'Score'], aggfunc = { 'Threat Score': np.mean, 'Score' :[np.mean, lambda x: len(x.dropna())] }, margins = False) new_col =['User Name Count', 'AVG_TH_Score', 'Avg_Threat_Score'] pt.columns = [new_col] #befor this code is working, after that now

问题 I'm trying to do a seemingly very simple task. Given a dataframe: daf = pd.DataFrame({'co':['g','r','b','r','g','r','b','g'], 'sh':['c','s','r','r','r','s','c','r']}) co sh 0 g c 1 r s 2 b r 3 r r 4 g r 5 r s 6 b c 7 g r I'd like to count the number of records with the unique combination of 'co' and 'sh' values and output as a table with rows ['g','r','b'] and columns ['c','s','r'] c s r g 1 0 2 r 0 1 1 b 1 0 1 Can it be done using pivot_table? Thank you, 回答1: It can be done more simply using

问题 I'm trying to do a seemingly very simple task. Given a dataframe: daf = pd.DataFrame({'co':['g','r','b','r','g','r','b','g'], 'sh':['c','s','r','r','r','s','c','r']}) co sh 0 g c 1 r s 2 b r 3 r r 4 g r 5 r s 6 b c 7 g r I'd like to count the number of records with the unique combination of 'co' and 'sh' values and output as a table with rows ['g','r','b'] and columns ['c','s','r'] c s r g 1 0 2 r 0 1 1 b 1 0 1 Can it be done using pivot_table? Thank you, 回答1: It can be done more simply using

问题 Given an existing Excel file, with data in a long format Automate creating the following pivot table in Excel with the Python win32com module Following is code to setup test.xlsx with data and connect to create a Excel com object Imports import win32com.client as win32 from pathlib import Path import sys import pandas as pd import numpy as np import random from datetime import datetime win32c = win32.constants Function to create test.xlsx This function is only to provide test data and a file

问题 I am weeks into making my first ever pivot tables, cant believe the power of them but have hit a snag I cannot overcome. I have a worksheet which has a column with raw data (manually imputed) Then I have another 2 columns that calculate the difference from the previous month and the % difference. This works fine. As you can see January 2015 is blank as the difference field is looking for the previous month and January is the first month. how can I get it to understand to look at December 2014

问题 I was trying to get the attendance of each user in a course where the users and the courses have many to many relationship and the attendance table is based on the relationship. But i couldn't call $user->pivot->attendance(); directly i had to call for the pivot object it self so i can call a function to it as you can see in the answer The Following is a sample of my Database scheme I need to run $users=$course->users; foreach($users as $user) { $user->pivot->attendance(); //error in this