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Jul 13, 2015 7:53 PM
(6353 views)

Hi all,

I had like to conduct - if possible - a correlation analysis on Jmp using three different parameters. Usually I conduct correlation analyses using the Fit Y by X-platform pasting the two traits (two columns) I want to correlate in the "Y" (response) screen respectively in the "X" (factor) screen of the platform - And read off the R squared value that it shows in the output file. However, this time I had like to correlate two traits over time (five different time points to be specific). And I dont see how to go about to conduct that analysis...

Or is it as simple as that I make a column for my time data and paste this information in the "By"-section of the Fit Y by X-platform? (But how do Jmp know which data belongs to which time point?). My question is therefore: Can anybody help me to construct such an analysis? If possible I had like to receive an R2-value for the correlation of the two traits over time. Currently, I only know how to correlate between the traits at each time point respectively.

Thank you in advance for help!

If you need more information to help me please ask for that.

Best regards,

Jim

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Re: Is it possible to conduct a correlation analysis over time?

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Re: Is it possible to conduct a correlation analysis over time?

Thank you very much. I havent had to time to make this test yet, but will make it in a near future. I hope to be back to update on this question then.

Best regards,

Jim

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Re: Is it possible to conduct a correlation analysis over time?

I would use Multiple Linear Regression, setting time, and your X variables as the Effects and your Response variable as the Y. Using the Fit Model platform, it will provide you with an R2 of how well time and your second X variable can predict your Response variable.

Jim