topic Re: How to run ANOVA for 3 factorial design with RCBD (reps nested within)? in Discussions

How to run ANOVA for 3 factorial design with RCBD (reps nested within)?

Juno — Wed, 08 Feb 2017 20:26:16 GMT

I am not sure if I have a claer title, but I am trying to run the ANOVA and F test on the yields with three factors: 10 ENTRIES, 2 LOCATIONS, 2 YEARS. I have 3 Reps for all 10 ENTRIES assigned in the field as RCBD design in each LOCATION and each YEAR. How do I nest the replcation within LOCATION, YEAR? whould I nest it in Rep ( LOCATION*YEAR) as well?

Thank you

Re: How to run ANOVA for 3 factorial design with RCBD (reps nested within)?

Mark_Bailey — Wed, 08 Feb 2017 21:46:04 GMT

You do not need to nest the replication. Your treatments are crossed as far as I can tell. JMP will automatically use the replicates to estimate the errors.

Select Analyze > Fit Model. Select the factor columns on the left. Note that Degree is equal to 2 by default. Click Macros and select Factorial to degree. This macro will add the terms for the main effects and all two-factor interaction effects.

You can save this model as a script to the data table so you can use it again with one click and without this set up. Click the red triangle at the top left and select Save to Data Table.

Now click Run.

Re: How to run ANOVA for 3 factorial design with RCBD (reps nested within)?

Juno — Thu, 09 Feb 2017 01:43:06 GMT

Hello

Is this the same with Full Factorial in the Macro option if I want to see all kinds of combination effects with Year, Location, and Entry?

Thank you!!

Juno

Re: How to run ANOVA for 3 factorial design with RCBD (reps nested within)?

Mark_Bailey — Thu, 09 Feb 2017 13:39:24 GMT

Yes, the macros are a convenient way to include a variety of terms made with the selected columns. Your RBCD design may not support the estimation of every term in the full factorial model, but give it a try!

If you have the data to support it and you want to try quadratic terms, you can use the Polynomial to degree macro or the RSM macro. The RSM macro is a short cut that gives you both the interactions and the powers up to degree 2.

Of course powers are possible only for continuous factors.

Re: How to run ANOVA for 3 factorial design with RCBD (reps nested within)?

Juno — Thu, 09 Feb 2017 13:44:46 GMT

Thank you Mark!