Stat > DOE > Factorial > Preprocess Responses for Analyze Variability
To preprocess your responses, first either:
Preprocess responses with your 2-level factorial design to:
Standard deviation to use for analysis:
Compute for repeat responses across rows : Choose to compute standard deviations from repeat measurements.
Repeat responses across rows of: Enter the columns containing the repeat measurements.
Store standard deviations in: Enter a storage column for the standard deviations.
Store number of repeats in: Enter a storage column for the number of repeat responses for each run.
Store means (optional) in: Enter a storage column for the means of repeat responses.
Compute for replicates in each response column: Choose to compute standard deviations from replicate measurements.
Replicates in individual response columns: Enter the columns containing the replicate measurements.
Response: Enter a column containing the replicates, one for each response. You can calculate standard deviations for up to 10 responses at once. Enter each response column in a separate row.
Store Std Dev in: Enter a storage column for the standard deviations for each response.
Store Counts in: Enter a storage column for the number of replicates for each response.
Adjust for covariates: Enter columns containing covariates for which to adjust in the calculation of the standard deviations for replicates.
Standard deviations already in the worksheet: Choose to enter precalculated standard deviations already in the worksheet.
Precalculated standard deviations in worksheet: Enter the columns containing the precalculated measurements.
Use Std Devs in: Enter a column containing the precalculated standard deviations for each response.
Use Counts: Enter a constant or column containing the number of repeats or replicates for each response.