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Subset of matrix
2 messages · dinesh kumar, jim holtman
my.mat[rownames(my.mat) in c(5951, 236, 6306, 5950, 145742, 1123),] or something close to this. Need to read introduction to R and subsetting.
On 3/24/08, dinesh kumar <barupal at gmail.com> wrote:
Dear R users
I have a big matrix like
6021 1188 790 290 1174 1015 1990 6613 6288
100714
6021 1 0.658 0.688 0.474 0.262 0.163 0.137 0.32
0.252 0.206
1188 0.658 1 0.917 0.245 0.331 0.122 0.148 0.194
0.168 0.171
790 0.688 0.917 1 0.243 0.31 0.122 0.15 0.19
0.171 0.174
290 0.474 0.245 0.243 1 0.39 0.319 0.187 0.4
0.311 0.235
1174 0.262 0.331 0.31 0.39 1 0.295 0.352 0.345
0.306 0.308
1015 0.163 0.122 0.122 0.319 0.295 1 0.421 0.343
0.442 0.435
1990 0.137 0.148 0.15 0.187 0.352 0.421 1 0.313
0.38 0.395
6613 0.32 0.194 0.19 0.4 0.345 0.343 0.313 1 0.58
0.429
6288 0.252 0.168 0.171 0.311 0.306 0.442 0.38 0.58
1 0.723
100714 0.206 0.171 0.174 0.235 0.308 0.435 0.395
0.429 0.723 1
5951 0.22 0.168 0.171 0.267 0.318 0.478 0.409 0.478
0.844 0.85
5960 0.232 0.183 0.186 0.272 0.324 0.42 0.383 0.522
0.686 0.711
236 0.259 0.213 0.218 0.283 0.357 0.382 0.4 0.549
0.655 0.608
64956 0.199 0.172 0.175 0.25 0.355 0.444 0.475 0.523
0.633 0.614
239 0.188 0.169 0.173 0.237 0.362 0.463 0.5 0.469
0.596 0.692
33032 0.25 0.167 0.169 0.308 0.301 0.407 0.346 0.486
0.655 0.64
6262 0.254 0.178 0.182 0.314 0.329 0.396 0.36 0.459
0.679 0.633
5961 0.262 0.189 0.194 0.311 0.342 0.362 0.377 0.468
0.621 0.574
5962 0.243 0.177 0.18 0.298 0.324 0.389 0.353 0.453
0.667 0.62
6306 0.226 0.168 0.171 0.274 0.306 0.389 0.38 0.514
0.698 0.62
6106 0.226 0.168 0.171 0.274 0.306 0.389 0.38 0.514
0.698 0.62
6287 0.208 0.175 0.178 0.25 0.328 0.429 0.422 0.529
0.771 0.689
5950 0.193 0.175 0.179 0.23 0.344 0.465 0.5 0.448
0.733 0.816
833 0.312 0.244 0.242 0.408 0.444 0.328 0.317 0.526
0.562 0.517
750 0.168 0.155 0.157 0.208 0.339 0.514 0.515 0.385
0.578 0.722
6137 0.201 0.168 0.171 0.239 0.306 0.389 0.38 0.453
0.698 0.62
145742 0.317 0.229 0.236 0.349 0.325 0.339 0.305
0.519 0.581 0.534
5810 0.364 0.216 0.221 0.411 0.294 0.338 0.269 0.603
0.631 0.47
825 0.364 0.216 0.221 0.411 0.294 0.338 0.269 0.603
0.631 0.47
7405 0.313 0.246 0.244 0.355 0.367 0.29 0.317 0.537
0.507 0.484
1045 0.133 0.124 0.135 0.198 0.333 0.441 0.344 0.277
0.362 0.341
1123 0.11 0.106 0.104 0.157 0.262 0.415 0.368 0.227
0.304 0.333
588 0.281 0.312 0.34 0.303 0.419 0.278 0.4 0.287
0.312 0.316
with more than thousand number of rows and column
I want to extract or subset a child matrix from above with specific row
names or col names.
e.g.
For above matrix I need only rows which has following row names.
5951 236 6306 5950 145742 1123
I would appreciate if you can use this matrix as input.
Thanks in advance.
Dinesh
--
Dinesh Kumar Barupal
Research Associate
Metabolomics Fiehn Lab
UCD Genome Center
451 East Health Science Drive
GBSF Builidng
University of California
DAVIS
95616
http://fiehnlab.ucdavis.edu/staff/kumar
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