相关疑难解决方法(0)

我想我正在寻找rbind.fill(在Hadley的plyr包装中)的类比cbind.我看了,但没有cbind.fill.

我想做的是以下内容:

#set these just for this example
one_option <- TRUE
diff_option <- TRUE

return_df <- data.frame()

if (one_option) {
    #do a bunch of calculations, produce a data.frame, for simplicity the following small_df
    small_df <- data.frame(a=1, b=2)
    return_df <- cbind(return_df,small_df)
}

if (diff_option) {
    #do a bunch of calculations, produce a data.frame, for simplicity the following small2_df
    small2_df <- data.frame(l="hi there", m=44)
    return_df <- cbind(return_df,small2_df)
}

return_df

可以理解,这会产生错误:

Error in data.frame(..., check.names …