MATLAB code error clarification

Can anyone explain the error quoted below?

>> CalcMeasures

Not enough input arguments.

Error in CalcMeasures (line 3)

if size(Y,2) ~= 1

Answer 1

[Steven Lord]

Your CalcMeasures function requires you to call it with at least one input argument. You called it with zero input arguments. Because of this MATLAB doesn't know on which data it should calculate the measures.

[Chethana Unni P]

What does it mean by input arguments? Can you please explain with an example

[Image Analyst]

y = rand(5, 10);
CalcMeasures(y)