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Re: Error Bar Thoughts [message #74760 is a reply to message #74759]

Wed, 02 February 2011 11:44

Gray
Messages: 253
Registered: February 2010

Senior Member

On Feb 2, 1:32 pm, David Fanning <n...@dfanning.com> wrote:
> David Fanning writes:
>> As an offset from the data point?
>
>> data = 5
>> errlow = 0.1
>> errhigh = 0.2
>
> OK, if errors are passed in as "deltas" from the data point
> are they always passed in as *positive* deltas, as I show above,
> or is the low error passed in as a *negative* value. Is it
> ever the case that the data point does NOT fall between
> the high and low error? Is there a convention?
>
> Cheers,
>
> David
>
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.idlcoyote.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")

David, here's my suggestion. All of these formats are equally valid
and are easily converted between. Pick a style and then let the user
pass their data in the right way.

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[Message index]

		Re: Error Bar Thoughts By: Matt[2] on Wed, 02 February 2011 11:51
		Re: Error Bar Thoughts By: Gray on Wed, 02 February 2011 11:44
		Re: Error Bar Thoughts By: Gray on Wed, 02 February 2011 11:43
		Re: Error Bar Thoughts By: David Fanning on Wed, 02 February 2011 10:32
		Re: Error Bar Thoughts By: David Fanning on Wed, 02 February 2011 10:15
		Re: Error Bar Thoughts By: Robin Wilson on Wed, 02 February 2011 10:05
		Re: Error Bar Thoughts By: David Fanning on Wed, 02 February 2011 09:51
		Re: Error Bar Thoughts By: David Fanning on Wed, 02 February 2011 12:14

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