====Mean (Analytic Filter)====

===Description===
The **Mean** filter is used to calculate a mean (average) from the data set.

When used on //multiple// rows, it returns the per-row means (ie. it will return the same number of columns and only one row).

When used on a //single// row, it returns the overall mean (ie. it will return a single number).

This is the same as using the Pandas 'mean' function on a DataFrame.

===Parameters===
This filter has no parameters.

===Example===
<code>
<filter type="Mean"/>
</code>

//Calculates the mean of the data frame//

==Before==

^Index^Col 1^Col 2^
|07:00:00|20|40|
|07:01:00|40|80|

==After==

^Index^Col 1^Col 2^

|07:01:00|30|60|