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- Fitting models using data in a matrix

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Jun 9, 2011 6:29 AM
(314 views)

dt = open("$SAMPLE_DATA/Big Class.jmp");

dt << Fit Model(

Y( :Height ),

Effects( :Weight ),

Personality( Standard Least Squares ),

Run Model

);

This assumes that the data is contained in a data table with columns named as in the example above, but is there a way to fit the same model using just data contained in columns of a matrix, i.e. without needing to turn that matrix into a data table first? If so, what would the syntax be?

Many thanks

3 REPLIES

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Jun 9, 2011 7:15 AM
(267 views)

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Jun 9, 2011 7:22 AM
(267 views)

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Jun 9, 2011 7:57 AM
(267 views)

My main motivation for asking is to maximize the speed of the calculations, as I want to perform a large number of them in rapid succession, and don't want to waste time creating and then deleting large numbers of tables if it can be avoided, as I've found in the past that I can often speed things up dramatically by doing as much work as I can in matrix algebra.

Many thanks - it looks as if I'm on the right track, anyway.