Hi,
I'm trying to use reshape but I cannot quite understand how it works.
Could somebody help me on this? Example, my data is something like:
mydat <- data.frame(tree= 1:10, serra=rep(1:2, c(5,5)), bt01= 101:110,
bt02= 201:210, bt03= 301:310, mm01= 9101:9110, mm02= 9201:9210, mm03=
9301:9310)
> mydat
tree serra bt01 bt02 bt03 mm01 mm02 mm03
1 1 1 101 201 301 9101 9201 9301
2 2 1 102 202 302 9102 9202 9302
3 3 1 103 203 303 9103 9203 9303
4 4 1 104 204 304 9104 9204 9304
5 5 1 105 205 305 9105 9205 9305
6 6 2 106 206 306 9106 9206 9306
7 7 2 107 207 307 9107 9207 9307
8 8 2 108 208 308 9108 9208 9308
9 9 2 109 209 309 9109 9209 9309
10 10 2 110 210 310 9110 9210 9310
that is, in the "wide form" with 2 constant variables (tree, serra)
and 6 variables that correspond to two variables (bt mm) measured in 3
years 01, 02, 03
I would like to reshaped the data to the long format as follows:
tree serra YEAR bt mm
1 1 2001 101 9101
2 1 2001 102 9102
3 1 2001 103 9103
4 1 2001 104 9104
5 1 2001 105 9105
6 2 2001 106 9106
7 2 2001 107 9107
8 2 2001 108 9108
9 2 2001 109 9109
10 2 2001 110 9110
1 1 2002 201 9201
2 1 2002 202 9202
3 1 2002 203 9203
4 1 2002 204 9204
5 1 2002 205 9205
6 2 2002 206 9206
7 2 2002 207 9207
8 2 2002 208 9208
9 2 2002 209 9209
10 2 2002 210 9210
1 1 2003 301 9301
2 1 2003 302 9302
3 1 2003 303 9303
4 1 2003 304 9304
5 1 2003 305 9305
6 2 2003 306 9306
7 2 2003 307 9307
8 2 2003 308 9308
9 2 2003 309 9309
10 2 2003 310 9310
I would appreciate if somebody let me know how could I do this with reshape
Thanks in advance
Juli
--
http://www.ceam.es/pausas
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
