I am using jquery tablesorter and was able to use the filter and math widget. I am now trying to export the table to csv with the use of the output widget and it's working fine except I cannot find a way to export the footer that uses the math widget. I have read the documentation in http://mottie.github.io/tablesorter/docs/example-widget-output.html but I can't find a way to do this. Is there any simple way to do this? Thank you in advance.
Edit: Found Answer myself
I don't know if it's a good one but it works. Instead of just putting the row with the total and average, that uses math widget, in the footer, I also added it on the last part of my table then set tr style="visibility:collapse". This way it became the last row in my table, when exported, but it's hidden so it would not create confusion to the user.
It looks like the output widget wasn't including the tfoot rows, so I added a new option output_includeFooter. This code change is currently available in the master branch of the repository.
Download the file: widget-output.js (click on the raw button).
Or, download a zip of the entire repository (link on the main page).