how to use 'bool' function?

i am using matlab for seismic processing.plz help me with 'bool' function

[Adam]

There's no such thing as the 'bool' function in base Matlab

Answer 1

[KALYAN ACHARJYA]

 % A bool function means it returns to either true or false based on condition statement
 if k==c % Condition statement
    True statement;
 else 
    False Statement
 end

[John Wheater]

Is it not better avoid a 'bool function', and instead to say

some_variable = (k==c);

then some_variable will be true or false.

Otherwise we're just saying

if true return true; else return false;end

btw how d'you get that neat coloured text into a post?

[Stephen23]

"Is it not better avoid a 'bool function'..."

Yes

"how d'you get that neat coloured text into a post?"

By formatting the text as code (look above the comment box for formatting options).

[John Wheater]

Sorry, I see we don't have a boolean data type, and we get a matrix of 1s or zeros.

So a function is useful, but should maybe contain just the one line

return (k==c)(1);

[Stephen23]

"...we don't have a boolean data type, and we get a matrix of 1s or zeros."

Actually MATLAB has a logical type (displayed as 1s and 0s):

https://www.mathworks.com/help/matlab/ref/logical.html

https://www.mathworks.com/help/matlab/matlab_prog/fundamental-matlab-classes.html

"So a function is useful..."

I don't see why. I would just write the logical comparison in my code.

"...but should maybe contain just the one line return (k==c)(1);"

That looks like a mixture of Python and MATLAB code (the keyword return does not return values in MATLAB, so that line performs some operations, discards any results, and then exits the function).

Answer 2

[Walter Roberson]

There is no bool in MATLAB or Simulink. There is boolean in Simulink, which is not recommended https://www.mathworks.com/matlabcentral/answers/375074-erro-using-boolean-with-matlab-on-window-machine#answer_298242

The only place that bool appears in Mathworks related code is in some of the interfaces for generated C++ code.