Add totals= parameter to the [bw_csv] shortcode

[bobbingwide]

I want to be able to automatically sum the values in columns in a CSV table and display this in a totals line.
E.g. for this simple table with a totals line for totals=C,T,A It would be would be

A	B	C
1	2	3
4	5	6
2	7	4.5

Where the codes are

Code	Meaning
C	Count - i.e number of rows
T	Total - sum of the rows in the column
A	Average - average of the values in the column ( T / C )
‐	No function

I haven’t decided about requirements when pagination is active.

[bobbingwide]

This option could also be supported by the oik-bbw/csv block.

[bobbingwide]

This was released in v1.34.0 on 30 Jan 2020. But it was only applied to the [bw_csv] shortcode. It needs to be added to the oik-bbw/csv block and the [bw_table] shortcode.
I won’t close this issue yet.

[bobbingwide]

When I added the totals= parameter to oik's [bw_table] shortcode I needed to update the shared library file libs/class-oik-csv-totals.php.