d*******1
发帖数: 854 | 1 比如
FOR (I=1: 20), 每一个循环都要产生一个DATAFRAME 如 TEST1, TEST2, TEST3......,
也就是说把循环数作为DATAFRAME名字的后缀, 怎么弄呢? 谢了 | l*********s
发帖数: 5409 | 2 1. name these dataframes within a list "environment"
2. use assign function | d*******1
发帖数: 854 | 3 can you be more specific on the first step? thanks
【在 l*********s 的大作中提到】
: 1. name these dataframes within a list "environment"
: 2. use assign function
| l*********s
发帖数: 5409 | 4 for instance,
totn <- 100
tmpdflst <- NULL
dfnames <- paste("tmp", 1:totn, sep="_")
for(i in 1:totn){
tmpdflst[[ dfnames[i] ]] <- ... ( whatever generates your series of df )
}
attach(tmdflst) if you want to save some keystrokes ( bad practice though)
【在 d*******1 的大作中提到】
: can you be more specific on the first step? thanks
| a********s
发帖数: 188 | 5 I recommend this way, using "assign" function:
iter <- 10
dtname <- paste("test", 1:iter, sep="")
for(i in 1:iter){
temp <- data.frame(x = 1:10, y = rnorm(10))
assign(dtname[i], temp)
} | d*******1
发帖数: 854 | 6 that is a great solution, thank you man!
【在 a********s 的大作中提到】
: I recommend this way, using "assign" function:
: iter <- 10
: dtname <- paste("test", 1:iter, sep="")
: for(i in 1:iter){
: temp <- data.frame(x = 1:10, y = rnorm(10))
: assign(dtname[i], temp)
: }
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