Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: RE: RE: RE: yscale/range to plot

From   "David Harrison" <[email protected]>
To   <[email protected]>
Subject   st: RE: RE: RE: yscale/range to plot
Date   Wed, 9 Mar 2005 08:52:12 -0000

-ylabel(minmax)- is documented under [G] axis_label_options.

Note that this is explicitly telling Stata to label only the minimum and maximum values (which may not be what you want to label); as previously noted, any -ylabel()- option will override the default behaviour of -sts graph- to have a y-axis labelled from 0 to 1.


-----Original Message-----
From: Angus Campbell [mailto:[email protected]]
Sent: 09 March 2005 03:11
To: [email protected]
Subject: st: RE: RE: yscale/range to plot


You can also make -sts graph- automatically scale the y-axis to show just the range covering your Kaplan-Meir curve with the command:

sts graph, ylabel(minmax)

If you would then like to adjust the scale, you can add the suffix ...yscale(range(0.8 1)).

But you still can't use -yscale- on its own; it must follow -ylabel(minmax)-.

I couldn't find information on -ylabel(minmax)- in Stata help, but it has been previously mentioned in StataList - I had exactly the same problem last year.

Best wishes,

Dr Angus Campbell
The Mackinnon Project
Faculty of Veterinary Science, University of Melbourne
250 Princes Highway
Werribee, Vic, 3030

>Date: Mon, 7 Mar 2005 12:37:59 -0000
>From: "David Harrison" <[email protected]>
>Subject: st: RE: yscale/range to plot
>The -range()- option will never reduce the range of the axis, only expand it (see help axis_scale_options).
>In the case of -sts graph-, if your Kaplan-Meier curves do not go below .8 then you may be able to get the behaviour you want by changing the -ylabel()- option, e.g.
>sysuse cancer
>stset studytime, f(died)
>sts graph
>sts graph, yla(.25(.25)1)
>If you want to restrict the range so that some of the curve is not visible, you will need to use -sts gen- to generate the full curve and then plot only the bit you want using a standard twoway graph.
>Hope this helps,
>- -----Original Message-----
>From: Nita Forouhi [mailto:[email protected]]
>Sent: 07 March 2005 12:20
>To: '[email protected]'
>Subject: st: yscale/range to plot
>Would anyone know how to re-set the y axis on a Kaplan Meir curve, so the
>survival probability starts at say 0.8 instead of at 0?
>I tried the command (below) but nothing visibly happened that was different
>- - ie the graph for sts graph, by(xvar) looked the same, ie started at 0 for
>y axis, as when i tried the yscale and range commands as below
>sts graph, by(xvar) ysc(r(0.8 1.0))
>(and when i tried it in a standard y vs x twoway scatter graph, nothing
>happened to the y-scale either - eg
>twoway scatter y x, ysc(r(15 50)) where y might be something like BMI say,
>and I only wanted to plot BMI on y axis from 15 to 50 say)
>Most grateful for any pointers on re-setting the scale/range to plot.

*   For searches and help try:

*   For searches and help try:

© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index