inputname
Indicate the variable name of the n-th argument passed into a function.
Syntax
R = inputname(x, ...)
R = x'
Inputs
- x
 - The index of the n-th variable passed into a function.
 
Outputs
- s
 - A string containing the variable name passed into the function.
 
Example
function z=foo(x)
     z=inputname(1);
end
varname = 7;
s = foo(varname)
      s = varname
    Comments
inputname will return an empty string if the input is not a variable (e.g. an expression).