You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: evofft.m
    path of file: ./repos/acycle/code/seriesanalysis
    
    the code of the file until where you have to start completion: function [s,x_grid,y_grid] = evofft(data,window,step,dt,fmin,fmax,norm)
%
% USE:
% [s,faxis,taxis] = evofft(data,mpts,inc,dt,fmin,fmax,unit)
% Function to compute a running periodogram of a uniformly sampled time series

    
function [s,x_grid,y_grid] = evofft(data,window,step,dt,fmin,fmax,norm)
%
% USE:
% [s,faxis,taxis] = evofft(data,mpts,inc,dt,fmin,fmax,unit)
% Function to compute a running periodogram of a uniformly sampled time series
% using FFTs of zero-padded segments.
%
% The output time-frequency running periodogram is plotted
%
% INPUT PARAMETERS
% data--2 columns with independ