Thank you for your help. Appreciate it a lot! I am using appropriate names,
just here as an example I used data :)
2013/5/15 Rui Barradas <ruipbarra...@sapo.pt>
> Hello,
>
> Try the following.
>
> aggregate(. ~ interval, data = data, mean)
>
>
> Also, 'data' is an R function, you should use some other name, such as
> 'dat'.
>
> Hope this helps,
>
> Rui Barradas
>
> Em 15-05-2013 10:46, Simonas Kecorius escreveu:
>
> Dear R users,
>>
>> Here is my data:
>>
>> "a1" "a2" "a3" "a4" "a5" "interval"
>> 432 355 159 9304 9949 1
>> 0 184 157 9182 10120 1
>> 1295 2 0 8861 10410 1
>> 0 100 572 9102 9836 1
>> 0 170 95 8421 9044 1
>> 0 170 2 8963 9261 1
>> 0 723 380 8483 8923 2
>> 0 184 111 8206 9373 2
>> 0 539 223 8670 8714 2
>> 0 341 4 8044 7977 2
>> 432 403 412 6938 7755 2
>> 0 218 395 7661 7898 2
>> 432 67 428 7176 7957 3
>> 0 0 47 7508 8160 3
>> 0 67 382 6978 7811 3
>> 0 0 47 8537 8486 3
>> 0 605 698 8651 9421 3
>> 432 1 0 8114 8923 3
>> 0 204 193 8904 9324 4
>> 432 1221 371 8997 9681 4
>> 0 0 0 8454 8838 4
>> 0 170 49 8232 8994 4
>> 0 184 111 9251 10790 4
>> 0 170 142 8227 9616 4
>> 0 67 428 8147 8359 5
>> 864 356 112 8570 8578 5
>> 0 0 47 8285 8859 5
>> 432 67 475 8326 8915 5
>> 432 355 112 8379 9061 5
>> 1296 513 52 8041 9023 5
>> 0 369 221 8253 9262 6
>> 432 402 412 8840 8704 6
>> 0 184 111 9085 9718 6
>> 0 170 2 8381 9335 6
>> 432 34 285 8744 8999 6
>> 0 355 159 8564 9387 6
>> 863 526 114 8479 10050 7
>> 432 374 194 8130 7840 7
>> 0 355 159 7785 8728 7
>> 432 271 714 9065 9168 7
>> 432 67 428 8621 9906 7
>> 0 639 795 8294 8697 7
>> 432 185 204 9243 9206 8
>> 0 388 303 8938 9789 8
>> 0 756 571 9574 9090 8
>> 432 67 522 8733 8931 8
>> 864 205 286 7760 8340 8
>> 0 170 95 8089 8597 8
>> 432 34 284 8132 8702 9
>> 0 100 666 7704 8686 9
>> 432 526 114 7414 8370 9
>> 0 170 142 8039 8385 9
>> 0 606 698 8443 9366 9
>> 432 67 428 9334 9000 9
>> 0 184 111 8313 8312 10
>> 432 696 303 8280 8597 10
>> 0 0 0 8578 9124 10
>> 0 170 2 7820 9355 10
>> 0 0 0 7738 7975 10
>> 0 184 157 8867 8843 10
>> 432 34 191 7664 8629 11
>> 0 0 94 8368 9230 11
>> 432 403 506 8601 9095 11
>> 0 0 0 9330 8670 11
>> 0 341 50 8782 8562 11
>> 0 0 0 7676 8191 11
>> 432 355 253 7033 8274 12
>> 2159 1214 1302 8068 8903 12
>> 432 1901 1679 8230 9152 12
>> 864 1567 1368 8813 8729 12
>> 863 1382 1398 8329 9207 12
>> 432 1282 779 8162 8644 12
>> 2160 1811 2099 8465 7745 13
>> 3456 394 444 8263 8833 13
>> 432 843 1034 8195 8508 13
>> 0 828 1066 7338 7591 13
>> 863 743 509 8134 8734 13
>> 2159 581 480 7325 8426 13
>> 0 979 799 7999 8233 14
>> 864 783 626 8337 9256 14
>> 1727 2210 1680 7633 8735 14
>> 1728 2427 3859 8248 8895 14
>> 5616 3623 3227 7566 8268 14
>> 4318 2887 2478 7520 8146 14
>>
>> I read it from a file:
>>
>> data<-read.table("data.txt", head=T, sep="\t")
>>
>> When I try count column mean by interval:
>>
>> newData <- do.call(rbind, tapply(data[1:5], data$interval, colMeans))
>>
>>
>> I get an error: Error in tapply(data[1:5], data$interval, colMeans) :
>> arguments must have same length
>>
>> Has anyone any clue what is wrong?
>> Thank you in advance.
>>
>>
--
Simonas Kecorius
**
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