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...xperiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey 2016-04-18 10:35 GMT+02:00 tan sj <sj_style_1125 at outlook.com>: > Thanks but it seem like the problem of looping through data is still the same....i am really wondering where is the mistake.... > > ________________________________________ > From: Thierry Onkelinx <thierry.onkelinx at inbo.be> > Sent: Monday, April 18, 20...

...ve you an idea of how to index elements of vectors. You could also use a matrix and then convert it into a vector using as.vector: testmat3<-matrix(0,nrow=5,ncol=5) for(i in 1:5) { for(j in 1:5) { testmat3[i,j]<-i+j } } as.vector(testmat3) Jim On Wed, Apr 6, 2016 at 8:04 PM, tan sj <sj_style_1125 at outlook.com> wrote: > Hi, i am sorry to interrupt, can I ask about this few problems? > > t_equal[(ss-1)*nsds+i]<-t.test(x_norm1,y_norm2,var.equal=TRUE)$p.value > 1. From above, what do "[(ss-1)*nsds+i]" brings to the code? > > 2. what is the purpose of having...

...xperiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey 2016-04-17 19:59 GMT+02:00 tan sj <sj_style_1125 at outlook.com>: > i have combined all the variables in a matrix, and i wish to conduct a simulation row by row. > > But i found out the code only works for the every first row after a cycle of nine samples. > > But after check out the code, i don know where is my mistake... >...

...t(x_norm1,y_norm2)$p.value i<-i+1 } } #store the current result into matrices by rows matrix_Equal[sim,]<-t_equal matrix_Unequal[sim,]<-t_unequal matrix_mann[sim,]<-mann } ##print results matrix_Equal matrix_Unequal matrix_mann Jim On Wed, Apr 6, 2016 at 12:43 AM, tan sj <sj_style_1125 at outlook.com> wrote: > Hi, Jim, i read through your example, > I tried to write a code modified yours example and my ideas ... > In last email, you replied that "results[[(ss-1)*nssds+ssd_index]]<-<your_test>" ,can i know further about this ? Because i am not very u...

...xperiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey 2016-04-17 19:59 GMT+02:00 tan sj <sj_style_1125 at outlook.com>: > i have combined all the variables in a matrix, and i wish to conduct a simulation row by row. > > But i found out the code only works for the every first row after a cycle of nine samples. > > But after check out the code, i don know where is my mistake... >...

...experiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey 2016-04-18 9:05 GMT+02:00 tan sj <sj_style_1125 at outlook.com>: > Hi, i am sorry, the output should be values between 0 and 0.1 and not > supposed to be 1.00, it is because they are type 1 error rate. And now i get > output 1.00 for several samples,rhis is no correct. The loop do not run for > every row. i do not know where is my...

...,25,100,25,100),5) sds<-rep(c(1,1.5,2,2.5,3),9) all<-cbind(s1,s2,sds) R<-Nsimulation(S1=s1,S2=s2,Sds=sds,nSims=5) But the result didnt update itself..Any comment please? ________________________________________ From: R-help <r-help-bounces at r-project.org> on behalf of tan sj <sj_style_1125 at outlook.com> Sent: Monday, April 25, 2016 1:02 AM To: r-help at r-project.org Subject: [R] R: use switch or function in connecting different cases. HI, I am trying to use switch () function to connect the three distribution (normal ,gamma with equal skewness and gamma with unequal skewness....

...recording the results that you want results[[(ss-1)*nssds+ssd_index]]<-<your_test> ssd_index<-ssd_index+1 } } The list "results" should now contain the results of whatever test you run. Be careful to get the order right. Jim On Tue, Apr 5, 2016 at 8:07 PM, tan sj <sj_style_1125 at outlook.com> wrote: > hi, Jim, > i am not very clear about yours idea. > How can i able to test them under the combination of factors? > I am now trying to do three for loops....but i am stucking .... > Please, I need help .... > ________________________________________

hi, i am new in this field. I am now writing a code in robustness simulation study. I have written a brief code "for loop" for the factor (samples sizes d,std deviation ) , i wish to test them in gamma distribution with equal and unequal skewness, with the above for loop in a single code if possible. Can i ask is that any suitable loop statement for this situation. This is my ideas

HI, I am trying to use switch () function to connect the three distribution (normal ,gamma with equal skewness and gamma with unequal skewness. But i am losing my ideas since i have sample sizes-(10,10),(10,25),(25,25),(25,50),(25,100),50,25),(50,100), (100,25),(100,100) standard deviation ratio- (1.00, 1.50, 2.00, 2.50, 3.00 and 3.50) distribution of gamma distribution with unequal skewness

i have combined all the variables in a matrix, and i wish to conduct a simulation row by row. But i found out the code only works for the every first row after a cycle of nine samples. But after check out the code, i don know where is my mistake... can anyone pls help .... #For gamma disribution with equal skewness 1.5 #to evaluate the same R function on many different sets of data

hi, i am new in this field. do favorite<http://stackoverflow.com/questions/36404707/simulation-study-of-2-sample-test-on-different-combination-of-factors#> If I wish to conduct a simulation on the robustness of two sample test by using R language, is that any ways in writing the code? There are several factors (sample sizes-(10,10),(10,25),(25,25),(25,50),(25,100),50,25),(50,100),

Hi, i am student from malaysia, i am new in r programming field, now i am trying to conduct a robustness study on 2 sample test under several combination of factors such as sample sizes ,standard deviation ratio and also distribution.. but now i am stucking in how to use for loop or apply function to conduct the simulation ? Then how can i test the test in the combined combination of factors?

I am new in R. I have to conduct simulation study on the robustness of 2 sample tests on several combination of factors (sample sizes ,variance and distribution). I have been completed write a code in normal distribution, and now i wish to add if -else in the code so that the code can simulated result for gamma distribution also. But i am stucking again as how can i connect both of them by