HMF is a Windows 9x/Me/NT/2000/XP program written in Borland Delphi Pascal that calculates Harmonic Means for sample sizes in a variety of ways.  It will calculate (a) the harmonic mean, (b) the sample size needed for group 2 for a given group 1 sample size and desired harmonic mean, (c) several combinations of sample sizes that result in the given harmonic mean, and (d) the harmonic mean for 3-6 groups.

Please note that all my software is constantly under development.  I do my best to verify the code and the algorithms; but unfortunately, I can test the software only so much by myself.  Please contact me if you find bugs or errors and I will do my best to fix them quickly.  I also welcome any suggestions you might have to improve the programs (or even new programming ideas).

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If you would like to send me feedback, please send it to brooksg@ohio.edu. Thank you.