Kapacitor explanations

Hi all,

I am absolutely new to Kapacitor. To be honest, I am not sure of what can it do.

I have uploaded many large Time Series to Influx, and used Chronograf for their visualization, and for the creation of some dashboards, for analytics purposes.

These Time Series data refer to vibrational data; so, I have to do some vibrational analysis. In particular, I have to study their wavelets. So I was wondering if there is some way to directly calculate Fourier Transform on my data.

Kapacitor is the TICK stack component that processes data: is it powerful enough to make such calculations?
Am I forced to download data and analyze it with external tools (like R or Python)?