Tutorial: Basics

An introductory tutorial to get you familiar with how easy it is to do analysis with saffy.

Setup

First we need to install the package using pip

pip3 install saffy

Loading some data

We first need to generate our data. For that we will use the built in generator simple_sine_generator. How generators work will be discussed in a later tutorial for now let's concentrate on the latter parts.

import saffy

sig = saffy.SignalManager(generator=saffy.generators.simple_sine_generator(10, 0, 1, 128))

We now have a sine signal of 10 Hz frequency, 0 phase shift, 1 second long and a sampling rate of 128. We can now easily plot the signal and see what was loaded in.

Basic time plotting

sig.graphics_time_plot()

Basic spectral plotting

Now let's calculate the real Fourier transform and plot the spectrum.

sig.fourier_transform()
sig.graphics_spectrum_plot()

And that is it you have done some basic Fourier signal analysis.