if strcmp(method,'range')

i have the following codes : but want know that in line 2,range word what mean?

function data=data_normalize(data,method)
  if strcmp(method,'range')
      data=(data-repmat(min(data),size(data,1),1))./(repmat(max(data),size(data,1),1)-repmat(min(data),size(data,1),1));
  elseif strcmp(method,'var')
      data=(data-repmat(mean(data),size(data,1),1))./(repmat(std(data),size(data,1),1));
  else
      error('Unknown method given')
  end

[Azzi Abdelmalek]

Mina, from your previous question, I think that you should read the basics of Matlab

[SUDEEP KUMAR DHURUA]

https://in.mathworks.com/help/matlab/ref/strcmp.html go to this link and you will understand it.

Answer 1

[Wayne King]

Mina welcome to MATLAB! I think Azzi has some good advice. If you invest some time in reading the MATLAB documentation, you will help yourself learn.

For example, if you enter

 >>help strcmp

at the command prompt, you get

    "strcmp Compare strings.
    TF = strcmp(S1,S2) compares the strings S1 and S2 and returns logical 1
    (true) if they are identical, and returns logical 0 (false) otherwise."

You can also get help with

 >>doc strcmp

For your example, this means that if the method input argument is 'range'

 method = 'range';
 strcmp(method,'range')

returns a 1 because method and 'range' are equal while

strcmp(method,'var')

returns a 0 because method and 'var' are not equal.

When coupled with an if statement, a 1 means that the statement is true and the code in the if statement will execute

 if strcmp(method,'range')
  disp('hi');
  elseif strcmp(method,'var')
  disp('bye');
 else
   disp('error');
 end

In the above, since the first strcmp() is equal to 1, the text 'hi' is displayed.

[mina]

ok.thanks

[MOHD Zubair]

good explanation