FPL Statistics Group

Power Curve, ASTM, 10/97

This program is designed to let members of ASTM fiddle with various criteria for acceptance testing of duration of load samples. As of 10/28/97, it is in draft form. It is likely that it will never be very polished.

Here is the code for the Perl program that handles the data generated by this form. Here is the code for the FORTRAN program that actually performs the simulation. Here is a letter [LaTeX version][postscript version] that describes the program. If you detect any errors in this material, please contact Steve Verrill at sverrill@fs.fed.us or 608-231-9375.

How many "strength reductions" do you want to consider?

What are they in percent?
(for example, 30 35 40 45 50)

How many coefficients of variation (cv) do you want to consider?
(The coefficent of variation of a property is 100 x (standard deviation)/mean.)

What are they?
(for example, 20 for a 20% coefficient of variation)

How many items will be tested in the first batch?
(1 to 200)

How many items will be tested in the second batch?
(1 to 200)

What order statistic from the first batch are you using to set the load level?

How many failures are permitted in the second batch?

How many trials do you want in the simulation?
(between 1 and 10000)

What is the starting value for the random number generator?
(between 1 and 10000000)

What name do you want for your results file?

The name should be unique to you to prevent the file from being accidentally overwritten by another user.

Since you will see an html document that presents the results as soon as you execute the program, you may not want an ascii copy. However, we do provide this option.

The ascii file will be written in the pub/data anonymous ftp directory. If a file by the same name already exists in the directory, the new results will be appended to the existing file. Check the anonymous ftp link for directions about retrieving the file.

If ftp does not run on your machine, e-mail me at sverrill@fs.fed.us and ask me to e-mail the results file to you. Do this quickly as the pub/data directory is cleaned weekly.

For further information, please contact Steve Verrill at sverrill@fs.fed.us or 608-231-9375.
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Last modified on 10/28/97.

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