Hi Ayu, you can use the R package ‘dplR’ to perform the wavelet analysis by using the function Morlet(x).

There are other R packages that allow you to do the same (use the word wave or wavelet to search them).

I recommand you to use RStudio which is an easy user interface for R (https://www.rstudio.com/). To install R: https://www.r-project.org/

This can help you too if you handle Matlab, Fortran or Python (http://paos.colorado.edu/research/wavelets/)

Good luck!

Hassane

If you familiar with Matlab, you can use Matlab Wavelet toolbox for it.