search for: duijvesteijn

Hi Readers, I have a question. I have a large dataset and want to throw away columns that have the same value in the column itself and I want to know which column this was. For example > x<-data.frame(id=c(1,2,3), snp1=c("A","G", "G"),snp2=c("G","G","G"),snp3=c("G","G","A"))

Hi all, A simple question which I don???t seem to be able to solve: I want to make a data.frame of 360 rows and 94228 column with only zero???s without having to type all these zero???s ;-) What is the easiest method? Thanks, Naomi Disclaimer: De informatie opgenomen in dit bericht (en bijlagen) kan vertrouwelijk zijn en is uitsluitend bestemd voor

...NA NA What I have been trying so far is reshape, but this doesn???t put the id???s of the groupmembers of different groups under the same columnname. It makes new columnnames per group. Couls somebody help me out with this? I really appreciate it Regards, Naomi Duijvesteijn Disclaimer: De informatie opgenomen in dit bericht (en bijlagen) kan vertrouwelijk zijn en is uitsluitend bestemd voor de geadresseerde(n). Indien u dit bericht ten onrechte ontvangt, wordt u geacht de inhoud niet te gebruiken, de afzender direct te informeren en het beri...

...et 2 observations for every snp by splitting the genotypes (in this case): id snp1 snp2 snp3 1 A G A 1 A G G 2 G A G 2 G G G 3 G A A 3 G G A It is probably quite easy to solve, but I can???t get it right??? Thanks for your help and valuable time! Naomi Duijvesteijn Disclaimer: De informatie opgenomen in dit bericht (en bijlagen) kan vertrouwelijk zijn en is uitsluitend bestemd voor de geadresseerde(n). Indien u dit bericht ten onrechte ontvangt, wordt u geacht de inhoud niet te gebruiken, de afzender direct te informeren en het be...

Hi, I was wondering if anybody can help me. In the small data set below I would like to select the index which doesn't contain the letter 'N' in the variable 'letters'. How can I discard these rows when the letter has a different position everytime (but the same letter for the whole column)? index<-c(1,2,3) letters<-c("CCTTGGAA", "NNTTGGAAT",

Hi, I am trying to split multiple columns. One column works just fine, but I want to do it for multiple columns??? Example > a ID V2 V3 V4 V5 V6 V7 V8 V9 V10 1 PBBA0644 -- GG AA -- AA -- AA GG GG 2 PBBA1010 -- GG AA -- AA -- AA GG GG 3 0127ATPR -- GG AA -- AA -- AA GG GG 4 0128EHAB -- GG AA -- AG -- AA AG GG 5 PBBA0829 -- GG AA -- AA -- AA GG AG

Hi R-ers, I am struggling with my x-axis in a association plot. What I would like is to place the labels of the x-axis between the tick markers and normally the labels are printed at the place where the tick marker is placed. I don???t want to move the tick marker (it gives the switch between one chromosome and the next) but I just want to put the chromosome number in between the