search for: matrix_mann

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2016 Apr 25
0
use switch or function in connecting different cases.
...(list=ls()) t <- u<- mann<- rep(0, 45) Nsimulation<-function(S1,S2,Sds,nSims) { set.seed(1) for (sim in 1:nSims) { matrix_t <-matrix(0,nrow=nSims,ncol=3) matrix_u<-matrix(0,nrow=nSims,ncol=3) matrix_mann <-matrix(0,nrow=nSims,ncol=3) #generate random samples from 2 normal distribution x<-rnorm(S1,5,Sds) y<-rnorm(S2,5,4) #extract p-value out and store every p-value into matrix matrix_t[sim,1]<-t.test(x,y,var.equal=TRUE)...
2016 Apr 25
2
R: use switch or function in connecting different cases.
...i have been told that it can all been done within one code. can anyone give me a brief idea on it. I just managed to write till here and it perhaps isnt correct .. #set up matrix for storing data from simulation matrix_t <-matrix(0,nrow=nSims,ncol=3) matrix_u<-matrix(0,nrow=nSims,ncol=3) matrix_mann <-matrix(0,nrow=nSims,ncol=3) sample_sizes<- matrix(c(10,10,10,25,25,25,25,50,25,100,50,25,50,100,100,25,100,100), nrow=2) p1<-p2<-p3<-vector() nSims<-10 alpha<-0.05 set.seed(1) simulation<-function(m,n,sds) { for (ss in 1:...
2016 Apr 06
0
R-dvel [robustness Simulation study of 2 sample test on several combination of factors ]
...s)) t_unequal <-c(rep(0,length=ncalcs)) mann <-c(rep(0,length=ncalcs)) #set up matrix for storing data from the vectors # but you do want 10000 replications of each calculation matrix_Equal<-matrix(rep(NA,ncalcs*nSims),nrow=nSims) matrix_Unequal<-matrix(rep(NA,ncalcs*nSims),nrow=nSims) matrix_mann<-matrix(rep(NA,ncalcs*nSims),nrow=nSims) ############Simulations for (sim in 1:nSims){ # this loop steps through the sample sizes for(ss in 1:dim(sample_sizes)[2]) { m<-sample_sizes[1,ss] n<-sample_sizes[2,ss] # initialize the index for results i<-1 for (sd in sds) { #fir...
2016 Apr 06
0
R-dvel [robustness Simulation study of 2 sample test on several combination of factors ]
...ncalcs)) > mann <-c(rep(0,length=ncalcs)) > > #set up matrix for storing data from the vectors > # but you do want 10000 replications of each calculation > matrix_Equal<-matrix(rep(NA,ncalcs*nSims),nrow=nSims) > matrix_Unequal<-matrix(rep(NA,ncalcs*nSims),nrow=nSims) > matrix_mann<-matrix(rep(NA,ncalcs*nSims),nrow=nSims) > > ############Simulations > > for (sim in 1:nSims){ > # this loop steps through the sample sizes > for(ss in 1:dim(sample_sizes)[2]) { > m<-sample_sizes[1,ss] > n<-sample_sizes[2,ss] > # initialize the index for...