Python statistics.harmonic_mean() Method
❮ Statistic Methods
Example
Calculate the harmonic mean of the given data:
# Import statistics Library
import statistics
# Calculate
harmonic mean
print(statistics.harmonic_mean([40,
60, 80]))
print(statistics.harmonic_mean([10, 30, 50, 70, 90]))
Try it Yourself »
Definition and Usage
The statistics.harmonic_mean() method calculates
the harmonic mean (central location) of the given data set.
Harmonic mean = The reciprocal of the arithmetic mean() of the reciprocals
of the data.
The harmonic mean is calculated as follows:
If you have four values (a, b, c and d) - it will be equivalent to 4 / (1/a + 1/b + 1/c + 1/d).
Syntax
statistics.harmonic_mean(data)
Parameter Values
| Parameter |
Description |
| data |
Required. The data values to be used (can be any sequence, list or
iterator). Note: Cannot contain negative values! |
Note: If data is empty, it returns a StatisticsError.
Technical Details
| Return Value: |
A float value, representing the harmonic
mean
of the given data |
| Python Version: |
3.6 |
❮ Statistic Methods