run_permtest.RdRun permutation test using parallel processing
run_permtest(x.mat = xtx, y = ymat, columns = 1, split = 101, num_perms = 100)
| x.mat | The desired x matrix that contains all the characteristics data/predictor variables; the matrix should contain the desired column user intends completing the permutation on. |
|---|---|
| y | The desired preprocessed neuroimaging data, with a mask or not. |
| columns | A numeric value indicating which characteristic/predictor we want analyzed. User inputs the column number they want permuted. |
| split | A value that allows user to finely split the processing task to allow for error checking. |
| num_perms | User defined value for number of desired permutations |
The desired permutation result
#cores <- detectCores() #cl <- makeCluster(cores[1]-1) #not to overload your computer #registerDoParallel(cl) #a <- run_permtest(x.mat = xtx, y = ymat, columns = 1, split = 101, num_perms = 100)