what is meaning of this plzz tell me

feat=[]; class=[];

Answer 1

[Star Strider]

Those assignments set the ‘feat’ and ‘class’ variables to empty arrays [].

Note that class (link) is a MATLAB function, and assigning a variable the same name ‘overshadows’ it. This will cause problems later if you want to use the class function.

[Mohd Shahrukh]

Thnkuu so much

[Star Strider]

As always, my pleasure.

Answer 2

[Walter Roberson]

When you assign [] to an entire variable, it assigns a double precision value that is 0 rows by 0 columns -- the empty double precision array.

When you assign [] to an indexed variable, such as feat(3,:) = [], then the meaning is quite different: it means to delete the indicated portion of the variable.

[Mohd Shahrukh]

Thnks man