**mean()**

`mean (`*expr, dexpr1, dexpr2, <,tinc>* <,-b>)

This function is the same as `ave`

in all respects except
one: means in the Y dimension *are not* weighted by latitude.
The means *are* weighted by grid interval to account for
non-linear grid spacing.

### Usage Notes

See the `ave`

reference page for details.

### Examples