topic Re: JMP stability test report not showing both specification limits in Discussions

JMP stability test report not showing both specification limits

peter_t — Fri, 09 Jun 2023 00:26:55 GMT

Hello

I have a response with two sided specification limits entered as Spec Limits in Column Properties, and tick mark in "Show as Graph Reference Lines". When I make a Reliability and Survival->Degradation->Stability analysis, I get an earliest crossing time of 13.99, were USL is crossed. However, USL is not shown in the overlay plot - only LSL is shown.

I would like to see both specification limits in the overlay plot like in the figure below (where I have manually changed the y-axis)

Do you have a trick, where I can force JMP to display both spec limits in the graph? I am using the graph in a script, where I loop through a lot of parameters, so I prefer to avoid changing the y-axis manually.

Data and script is attached. I am using JMP 15.0.

Thanks,

Peter

Re: JMP stability test report not showing both specification limits

txnelson — Mon, 04 Jan 2021 14:45:08 GMT

Here is how I handle such items

names default to here(1);
dt = current data table();

deg = dt << Degradation(
	Y( :result ),
	Time( :Name( "Timepoint (M)" ) ),
	Label( :Batch ),
	Application( Stability Test ),
	Connect Data Markers( 1 ),
	Show Fitted Lines( 1 ),
	Show Spec Limits( 1 ),
	Show Median Curves( 0 ),
	Show Legend( 1 ),
	No Tab List( 0 ),
	Set Upper Spec Limit( 5.5 ),
	Set Lower Spec Limit( 4.5 ),
	Set Censoring Time( . ),
	Show Residual Plot( 0 ),
	Show Inverse Prediction Plot( 0 ),
	Show Curve Interval( 1 ),
	Inverse Prediction Interval( Confidence Interval ),
	Inverse Prediction Alpha( 0.025 ),
	Inverse Prediction Side( Lower One Sided ),
	SendToReport( Dispatch( {}, "Reports", OutlineBox, {Close( 1 )} ) )
);
specs = dt:result << get property("spec limits");
degr = deg << report;

if(degr[AxisBox(1)]<<get max < specs["USL"], degr[AxisBox(1)]<<max(specs["USL"] +
	.01 * abs(degr[AxisBox(1)]<<get max - degr[AxisBox(1)]<<get min ))
);

Re: JMP stability test report not showing both specification limits

jthi — Mon, 04 Jan 2021 14:54:40 GMT

Very close to txnelson's solution:

Names Default To Here(1);
dt = Current Data Table();
deg = Degradation(
	Y(:result),
	Time(:Name("Timepoint (M)")),
	Label(:Batch),
	Application(Stability Test),
	Connect Data Markers(1),
	Show Fitted Lines(1),
	Show Spec Limits(1),
	Show Median Curves(0),
	Show Legend(1),
	No Tab List(0),
	Set Upper Spec Limit(5.5),
	Set Lower Spec Limit(4.5),
	Set Censoring Time(.),
	Show Residual Plot(0),
	Show Inverse Prediction Plot(0),
	Show Curve Interval(1),
	Inverse Prediction Interval(Confidence Interval),
	Inverse Prediction Alpha(0.025),
	Inverse Prediction Side(Lower One Sided),
	SendToReport(Dispatch({}, "Reports", OutlineBox, {Close(1)}))
);

//get upper spec limits from result column column properties
uslValue = (Column(dt, "result") << Get Property("Spec Limits"))["USL"];
//scaling to make limit visible
uslScaleFactor = 1.01;
//Degradation as report
rep = deg << Report;
//access y-axis
reportYAxis = rep[axisbox(1)];
//current max value
currentYMax = reportYAxis << Get Max;
//set as max of either old max or USL
reportYAxis << Max(Max(currentYMax, uslValue*uslScaleFactor));

Re: JMP stability test report not showing both specification limits

peng_liu — Mon, 04 Jan 2021 14:57:16 GMT

This looks like a bug. Please contact JMP Technical Support at support@jmp.com

Meanwhile, a workaround is to use JSL to adjust the axis, if it is acceptable in your workflow.

Look at the following codes. Towards the end, is one way to adjust the axis, by hard coding the range of the axis. There are at least two other ways but gradually getting complicated. If this approach does not work for your workflow, please explain. And we will see what might work.

Degradation(
	Y( :result ),
	Time( :Name("Timepoint (M)") ),
	Label( :Batch ),
	Application( Stability Test ),
	Connect Data Markers( 1 ),
	Show Fitted Lines( 1 ),
	Show Spec Limits( 1 ),
	Show Median Curves( 0 ),
	Show Legend( 1 ),
	No Tab List( 0 ),
	Set Upper Spec Limit( 5.5 ),
	Set Lower Spec Limit( 4.5 ),
	Set Censoring Time( . ),
	Show Residual Plot( 0 ),
	Show Inverse Prediction Plot( 0 ),
	Show Curve Interval( 1 ),
	Inverse Prediction Interval( Confidence Interval ),
	Inverse Prediction Alpha( 0.025 ),
	Inverse Prediction Side( Lower One Sided ),
	SendToReport(
		Dispatch( {}, "Reports", OutlineBox, {Close( 1 )} ),
		Dispatch(
			{"Overlay"},
			"2",
			ScaleBox,
			{Min( 4 ), Max( 6 ), Inc( 0.2 ), Minor Ticks( 1 )}
		)
	)
)

Re: JMP stability test report not showing both specification limits

peter_t — Wed, 06 Jan 2021 15:55:34 GMT

Thanks. Great work around. Works perfectly in my script.

Peter

Re: JMP stability test report not showing both specification limits

Jeff_Perkinson — Sat, 13 Mar 2021 14:51:09 GMT

Hi @peter_t,

Thanks for stopping by the Meet the Developers session at Discovery Summit Europe 2021 Online. It was nice to meet you.

I've reported the problem you've shown here as a bug and we hope we can address it in a future release.