topic Re: Number of points in a Variability chart in Discussions

Number of points in a Variability chart

wsande — Thu, 20 Jun 2019 14:43:40 GMT

I have a standard Variabilty chart, and I woiuld like to somehow see the number of points in each group. Is there a way to do this?

Re: Number of points in a Variability chart

andersonmj2 — Thu, 20 Jun 2019 17:31:49 GMT

Under the menu there is the 'Variability Summary' which gives you the summary statistics and also at the end the number of observations per subgroup - so if you have 5 x-axis levels you will get a cluster for each nested level set.

Re: Number of points in a Variability chart

wsande — Mon, 24 Jun 2019 20:41:39 GMT

I was hoping to display the number of points on the chart, similar to "Show Counts" on a histogram.

Re: Number of points in a Variability chart

txnelson — Mon, 24 Jun 2019 21:51:38 GMT

You should submit this request to the JMP Wish List

Re: Number of points in a Variability chart

vince_faller — Mon, 24 Jun 2019 22:59:57 GMT

If you don't need to do variability charts specifically, you can do similar stuff in graph builder.

Names default to here(1);
dt = open("$SAMPLE_DATA\Big Class.jmp");
dt << Graph Builder(
	Size( 528, 454 ),
	Show Control Panel( 0 ),
	X Group Edge( "Bottom" ),
	Variables( Y( :height ), Group X( :age ), Group X( :sex ) ),
	Elements(
		Points( Y, Legend( 10 ) ),
		Caption Box( Y, Legend( 9 ), Summary Statistic( "N" ) ),
		Box Plot( Y, Legend( 11 ) )
	)
);

Re: Number of points in a Variability chart

andersonmj2 — Tue, 25 Jun 2019 17:52:00 GMT

And to follow on Vince's excellent suggestion, if you do it in Graph Builder without the script, you can simply Add-.Caption Box, and in the Control Panel under Summary Statistic, the top item is N.

Re: Number of points in a Variability chart

wsande — Tue, 25 Jun 2019 20:26:50 GMT

Thanks for all the helpful answers!