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Re: How to use ploterror procedure in idl with no xerror bars? [message #94747 is a reply to message #94745]

Fri, 22 September 2017 02:57

Markus Schmassmann
Messages: 129
Registered: April 2016

Senior Member

On 09/21/2017 07:47 PM, Meegle_Jade wrote:
> I would like to use the ploterror procedure in idl for my plots. I
> don't have any x error bars. I used the following command
>
> ploterror, x , y, yerr,type=3,psym=3
>
> But this is giving me horizontal error bars. I tried giving it as
>
> ploterror, x , y, xerr,yerr,type=3,psym=3
>
> with xerr=0. But this gave me absurd output. Kindly help me in this
> regard.

; TYPE = type of plot produced. The possible types are:
; TYPE = 0 : X Linear - Y Linear (default)
; TYPE = 1 : X Linear - Y Log
; TYPE = 2 : X Log - Y Linear
; TYPE = 3 : X Log - Y Log

could this be the problem?

If not, I don't understand why the first doesn't work. On the second try

xerr = make_array(size=size(x))

If you can't make it work consider using

plot, x, y, psym=3,/xlog,/ylog
errplot, x, y-yerr, y+yerr

or

cgPlot, x,y,ERR_YLow=yerr, ERR_YHigh=yerr,PSym=3,/xlog,/ylog

good Luck, Markus

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[Message index]

		How to use ploterror procedure in idl with no xerror bars? By: Sonu Tabitha on Thu, 21 September 2017 10:47
		Re: How to use ploterror procedure in idl with no xerror bars? By: Markus Schmassmann on Fri, 22 September 2017 02:57
		Re: How to use ploterror procedure in idl with no xerror bars? By: wlandsman on Fri, 22 September 2017 06:34

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