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2005 May 19
0
Random/systematic selection of rows in a matrix
...on the thinned process - 20 equidistant transects parallel to x axis #First transect randomly chosen among first 27 rows in process t=0 t<-(1+as.integer(27*runif(1))) transis<-c(t,t+27,t+54,t+81,t+108,t+135,t+162,t+189,t+216,t+243,t+270,t+297,t+324,t+351,t+378,t+405,t+432,t+459,t+486,t+513) mcolasamsis<-mat.or.vec(20,180) for(l in 1:20){ mcolasamsis[l,]<-mcola[,transis[l]] } file2.out<-paste("mcolasamsis7",i,"txt",sep=".") write(mcolasamsis,file2.out,ncol=ncol(mcolasamsis)) } }