| hmean | R Documentation | 
Compute the harmonic mean accoring to the EPA DFLOW manual.
hmean(x, na.rm = FALSE)
| x | the data to compute the harmonic mean. | 
| na.rm | a logical value indicating whether NA values should be removed before computation. | 
The harmonic mean of x.
Rossman, L.A., No Date, DFLOW user's manual: U.S. Environmental Protection Agency, Cincinnati, Ohio, 26 p.
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