Question

假设我有两个文件private String getServerTimeZoneDisplayName() { final TimeZone timeZone = TimeZone.getDefault(); final boolean daylight = timeZone.inDaylightTime(new Date()); final Locale locale = servletRequest.getLocale(); return timeZone.getDisplayName(daylight, TimeZone.LONG, locale); }和df1.csv：

df2.csv

和

   a b c
1  . . . 
2  . . .
3  . . .

如何将d e f 1 . . . 2 . . . 3 . . .合并为以下输出？

.csv

Answer 1

Akrun解决方案确实有效：

df1 <- structure(list(a = c(1L, 1L, 1L), b = c(2L, 2L, 2L), c = c(3L, 3L, 3L)),
                 .Names = c("a", "b", "c"), class = "data.frame", row.names = c(NA,-3L))


df2 <- structure(list(a = c(1L, 1L, 1L), b = c(2L, 2L, 2L), c = c(3L, 3L, 3L)),
                 .Names = c("d", "e", "f"), class = "data.frame", row.names = c(NA,-3L))

cbind(df1, df2)    

 a b c d e f
 1 2 3 1 2 3
 1 2 3 1 2 3
 1 2 3 1 2 3

如何将一个文件的列合并到R中的另一个文件？

1 个答案: