2
正如標題所示,我想這樣做。下面的例子:使用列表名稱作爲使用XLConnect的工作表名稱
library(stringr)
library(XLConnect)
df <- data.frame(do.call("rbind", lapply(1:10, function(i) rnorm(10))))
df.list <- rep(list(df), 10)
names(df.list) <- paste("DataFrame", str_pad(1:length(df.list), 2, pad = "0"), sep = "")
df.list.workbook <- loadWorkbook("df.list.workbook.xlsx", create = TRUE)
lapply(1:length(df.list), function(i) createSheet(df.list.workbook, name = names(df.list[i])))
lapply(df.list[1:length(df.list)], function(i) writeWorksheet(df.list.workbook, i, sheet = names(i)))
最後一行是它拋出了一個錯誤:
Error: IllegalArgumentException (Java): Sheet index (-1) is out of range (0..9)
要解決這一點,我想:
lapply(df.list[1:length(df.list)], function(i) print(names(i)))
,實現了列的名稱被傳遞給表單變量。任何想法如何克服這一點?
'名(df.list)[I]'? – James 2012-03-24 08:29:00
@詹姆斯,給我'在打印錯誤(名稱(df.list)[i]): 在選擇函數'print'的方法中評估參數'x'時出錯:名稱中的錯誤(df.list) [i]:無效的下標類型'list'' – Ben 2012-03-24 08:32:20
啊,我明白了。還需要更改爲:'lapply(seq_along(df.list),function(i)writeWorksheet(df.list.workbook,df.list [[i]],sheet = names(df.list)[i]) '。需要在索引而非列表上使用 – James 2012-03-24 08:38:27