What are filters? When should I choose to use them?

Filters are various questions/variables from your dataset that you can add to the chart and use as a way to narrow down or filter the data that is being displayed. They offer a great way to dig into your data and explore the results. For example, if you are charting the respondent satisfaction levels with various supermarket departments, but are only curious about the responses from all females in the West region - you can add the ‘Gender’ and ‘Region’ questions as chart filters to narrow the results to those particular criteria. 

With Powercharts, you have the ability to include these filters within the chart so that your users can also do filtering directly on the chart. You can even choose to display the active filters in the chart by place the Filter By text box in your chart.