loops in R
On 05-11-2014, at 14:41, Noha Osman <nmo_138 at usc.edu> wrote:
Hi Folks Iam a new user of R and I have a question . Hopefully anyone help me in that issue I have that dataset as following Sample Population Species Tissue R G B 1 Bari1_062-1 Bari1 ret seed 94.52303 80.70346 67.91760 2 Bari1_062-2 Bari1 ret seed 98.27683 82.68690 68.55485 3 Bari1_062-3 Bari1 ret seed 100.53170 86.56411 73.27528 4 Bari1_062-4 Bari1 ret seed 96.65940 84.09197 72.05974 5 Bari1_062-5 Bari1 ret seed 117.62474 98.49354 84.65656 6 Bari1_063-1 Bari1 ret seed 144.39547 113.76170 99.95633 and I have 20 populations as following [1] Bari1 Bari2 Bari3 Besev Cermik Cudi Derici Destek Egil [10] Gunasan Kalkan Karabace Kayatepe Kesentas Ortanca Oyali Cultivated Sarikaya [19] Savur Sirnak I need to calculate mean and variance of each population using column [R] using for-loop
If I?m correct you asked an almost identical question Stackoverflow (http://stackoverflow.com/questions/26742023/how-can-i-use-loops-in-r). You got all the answers you need. Berend