topic Re: Iterate Through Data Table to Select Matching Items in Another Data Table in Discussions

Iterate Through Data Table to Select Matching Items in Another Data Table

Ksrzg01 — Fri, 02 Jun 2017 13:19:10 GMT

Good Morning All,

I am trying to create a script which will iterate through two columns on one data table and select all of the matching characters on another data table to perform a simple bivariate graph. To help visualize, consider me trying to iterate through Little Class.JMP by Sex and Name and select all matching rows on Big Class.JMP, then for each iteration, graph height by weight.

Re: Iterate Through Data Table to Select Matching Items in Another Data Table

txnelson — Fri, 02 Jun 2017 14:58:31 GMT

Is this what you are thinking of?

Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA\big class.jmp" );
dt << select where( Mod( Row(), 3 ) == 0 );
dtlookup = dt << subset( selected columns( 0 ), selected rows( 1 ) );
For( i = 1, i <= N Rows( dtlookup ), i++,
	dt << clear row states;
	dt << select where( dtlookup:name[i] == dt:name & dtlookup:sex == dt:sex );
	dt << invert row selection;
	dt << hide and exclude( 1 );
	biv = Bivariate( Y( :height ), X( :weight ) );
	Report( biv )[Outline Box( 1 )] << set title( dtlookup:name[i] );
);

Re: Iterate Through Data Table to Select Matching Items in Another Data Table

Ksrzg01 — Fri, 02 Jun 2017 15:15:59 GMT

This is pretty close to what im looking for. Now imagine I have a column of random ages in another table. I want the script to go down the column of the various ages, subset the ages from the big class DT, and plot the hight by weight. I know I could just do a fit x by y by age but the data set I'm looking at is too large to do this.

Re: Iterate Through Data Table to Select Matching Items in Another Data Table

txnelson — Fri, 02 Jun 2017 15:21:32 GMT

The code I gave you just needs to be expanded to the logic you described in your response. You should be able to write that code given the leg up of my example, and access to the Scripting Guide and Scripting Index

Help==Books==>Scripting Guide

Help==>Scripting Index

Re: Iterate Through Data Table to Select Matching Items in Another Data Table

Ksrzg01 — Fri, 02 Jun 2017 16:24:27 GMT

Thanks for the help Jim! Finally got it all figured out with very little variation to the solution you provided me.

Re: Iterate Through Data Table to Select Matching Items in Another Data Table

Ksrzg01 — Fri, 02 Jun 2017 17:10:02 GMT

Hey, one last thing. How can I save each individual graph to a journal?

Re: Iterate Through Data Table to Select Matching Items in Another Data Table

txnelson — Fri, 02 Jun 2017 21:25:56 GMT

Here is the example from the Scripting Index on saving to a journal

Names Default To Here( 1 );
//This message applies to all display box objects
Open( "$SAMPLE_DATA/Big Class.jmp" );
biv = bivariate( y( :weight ), x( :height ) );
rbiv = biv << report;
rbiv << Save Journal( "path/to/example.jrn" );

Re: Iterate Through Data Table to Select Matching Items in Another Data Table

Ksrzg01 — Wed, 07 Jun 2017 15:22:35 GMT

Worked great. Thanks!

Re: Iterate Through Data Table to Select Matching Items in Another Data Table

jj_jmp — Thu, 22 Sep 2022 17:08:55 GMT

Should it be this? I don't see why name gets [i] but sex does not get [i]

dt << select where( dtlookup:name[i] == dt:name & dtlookup:sex[i] == dt:sex ); //rather than dt << select where( dtlookup:name[i] == dt:name & dtlookup:sex == dt:sex );

Re: Iterate Through Data Table to Select Matching Items in Another Data Table

txnelson — Thu, 22 Sep 2022 19:34:45 GMT

You are correct