average
- average(fs)
Computes the average of all the values for each field in
fs
.- Parameters
fs (
Fieldset
) – input fieldset- Return type
number or list or None
If there is only one field in
fs
a number is returned, otherwise a list is returned. Only non-missing values are considered in the calculation. If there are no valid values, the function returns NaN for that field.Note
average()
simply returns the mathematical average of all the field values using the following formula:\[average = \frac {1}{N} \sum_{i}^{N}f_{i}\]To get the physically correct average based on the grid cell areas use
integrate()
.