create
This results in a comma separated value file that has each rows containing each observation for each replication and each replication as columns. The last two columns are avg is the average across the replications and cumAvg. The file is flushed and closed. The file is stored in the base directory holding the Welch data files and has the name of the data with _WelchData.csv appended.
The header row is: Rep1, Rep2, ..., RepN, Avg, CumAvg
Parameters
num
how many to write
Throws
if problem writing