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tom325
Joined: 06 May 2004 Posts: 2 Location: Dallas, TX
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Posted: Thu May 06, 2004 5:14 pm Post subject: Reliability Functions |
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I'd like to use Dplot/Dplotjr to create Weibull Probability plots.
The Probability scale, usually the y-axis, is not the same as the one finds on a normal-probability plot.
The x-axis is a ln(time) [or ln(stress)] scale - easy to just define as logarithmic from you general list.
The y-axis is a linear relation from ln[-ln(1-F)], where 1-F is related to remaining product fration from a life-test at a give time -t.
How can I simply generate the appropriate tick/tick labels within a C - source, or some other means, this really is a lot like the normal probability tick/tick-labels which are linear in "z" coordinates.
Thanks,
Tom Anderson |
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DPlotAdmin Site Admin
Joined: 24 Jun 2003 Posts: 2311 Location: Vicksburg, Mississippi
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Posted: Thu May 06, 2004 6:00 pm Post subject: |
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Quote: | How can I simply generate the appropriate tick/tick labels within a C - source, or some other means, this really is a lot like the normal probability tick/tick-labels which are linear in "z" coordinates. |
While you can generate your own psuedo-grid lines and labels by using "None" for the number format and using [Refline(...)] for grid lines and Text>Note for the labels, this isn't something I'd wish on my worst enemy. Yours is the first request I've had for a natural log scale; I'll make an effort to get that into the next version. If you can point me to an example of what you're looking for on the web that might be helpful... a quick search just now turns up plots that, to me, appear to be log10 or linear on the X axis and either linear or what appears to be identical to DPlot's probability scale on the Y axis. _________________ Visualize Your Data
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tom325
Joined: 06 May 2004 Posts: 2 Location: Dallas, TX
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Posted: Thu May 06, 2004 6:32 pm Post subject: Reliability Plots |
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Dave -
Visit www.reliasoft.com |
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DPlotAdmin Site Admin
Joined: 24 Jun 2003 Posts: 2311 Location: Vicksburg, Mississippi
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Posted: Thu May 06, 2004 6:40 pm Post subject: |
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Thanks for the link. I'll put in an honest effort on this, but I can't guarantee when it will be available. _________________ Visualize Your Data
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