我是R的新手,而我现在很少被卡住了。 所以,我写的代码看起来像这样(这只是开头):
# Load all EUR Files
setwd(EUR)
filenames <- list.files(path = EUR)
MSCIeur <- do.call("rbind", lapply(filenames, read.csv, header = TRUE, sep = ";"))
现在我需要针对不同的货币多次运行此代码,所以我的问题是:有没有办法多次运行相同的代码,第一次运行时使用&#34; EUR&#34;下次它取代所有&#34; EUR&#34;在&#34; USD&#34;的代码中等我是否需要复制粘贴整个代码,只需替换所有&#34; EUR&#34;用&#34; USD&#34;手动?
对任何花时间阅读此内容的人来说:)
答案 0 :(得分:0)
尝试for
循环,您可以设置不同的工作目录并将所有数据存储在列表中:
curr.name <- gsub(x = list.dirs('.', recursive=FALSE), pattern = "./", replacement ="")
curr <- paste(getwd(), curr.name, sep = "/")
___________________________________________________________________________________________
MSCI <- list()
for(i in 1:length(curr)){
setwd(curr[i])
filenames <- list.files(path = curr[i])
MSCI[[i]] <- do.call("rbind", lapply(filenames, read.csv, header = TRUE, sep = ";"))
}
names(MSCI) <- curr.name
___________________________________________________________________________________________
# Other way
for(i in 1:length(curr)){
setwd(curr[i])
filenames <- list.files(path = curr[i])
assign(curr.name[i],do.call("rbind", lapply(filenames, read.csv, header = TRUE, sep = ";")))
}