data-manipulation
jQuery jqGrid Show message when an edit row is complete
I am following this tutorial here http://www.trirand.com/blog/jqgrid/jqgrid.html in LiveDataManipulation->EditRow[详细]
2023-03-22 19:10 分类:问答changing variable values into new variables in r
I have a data set with about 600 animals with this structure: anim <- c(1,1,1,1,1,2,2,2,2) point <- c(1,2,3,4,6,3,4,5,6)[详细]
2023-03-19 05:09 分类:问答Collapse data frame by group using different functions on each variable
Define df<-read.table(textConnection(\'egg 1 20 a egg 2 30 a jap 3 50 b jap 1 60 b\')) s.t. > df V1 V2 V3 V4[详细]
2023-03-16 12:16 分类:问答Given an R dataframe with column A, how do I create two new columns containing all ordered combinations of A
I have a data.frame with one id column (x below), and a number of variables (y1,y2 below). x y1 y2 11 43 55[详细]
2023-03-16 02:25 分类:问答Editing cell entries in a variable in a data frame inside a list of data frames
Define: > dats <- list( df1 = data.frame(a=sample(1:3), b = as.factor(rep(\"325.049072M\",3))),[详细]
2023-03-14 08:20 分类:问答Removing rows in dataset goes wrong
I have the following dataset: text <- c(1:13) numbers <- c(1,1,1,1,1,1,1,1,1,1,1,1,1) test <- data.frame([详细]
2023-03-08 17:08 分类:问答loop to create a new variable based on other cases in R (very basic)
I have a dataframe with three variables: ID, group, and nominated_ID. I want to know the group开发者_StackOverflow社区 that nominated_ID belongs in.[详细]
2023-03-04 20:07 分类:问答Turning a column into rows
I have , for example, this data Rows <- c(1,1,1,1,1,1,1,1,1, 2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,3, 4,开发者_Python百科4,4,4,4,4,4,4,4,[详细]
2023-03-01 17:42 分类:问答App/GUI for matching up list items?
I am migrating data from one database schema to another. I have to match up fields from the old to the new.[详细]
2023-02-19 02:25 分类:问答Reshape data frame from wide to panel with multiple variables and some time invariant
This is a basic problem in data analysis which Stata deals with in one step. Create a wide data frame with time invariant data (x0) and time varying data for years 2000 and 2005 (x1,x2):[详细]
2023-02-16 06:38 分类:问答