On Jul 1, 2012, at 1:33 AM, pigpigmeow wrote:
i'm not success to insert row in specific location and merge another
file
I have a question and I feel confused about the usage of "rbind",
"cbind"
and "data.frame)
data 1:
predict_SO2_a
predict_SO2_a
1 39.793231
2 30.252578
3 32.467584
4 31.941509
5 27.908320
6 11.594137
7 9.368125
8 12.319093
9 11.558811
10 NA
11 11.211306
12 12.400342
13 12.393146
14 13.256160
15 10.709600
16 9.966334
17 28.850652
18 10.024405
data 2:
predict_SO2_b
[1] 16.931975 18.286223 11.454404 6.256828 7.951174 5.364070
9.675208
7.328439 9.957388 14.603543 14.605044 8.681327 9.450510 10.628049
13.178781 11.757256
[17] 23.820308
when I used "merge" and combine data1 and data2, it showed the error
Error in rbind(deparse.level, ...) : replacement has length zero.
I found the display of these two data are different. I'm confused
Yes, you are. The 'merge' operation requires that the two data.frames
have some sort of identifier that labels the groups to be merged.
You should describe what you are attempting rather than showing failed
efforts at doing it.
--
David Winsemius, MD
West Hartford, CT
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