What is Varargin MATLAB?

varargin is an input variable in a function definition statement that enables the function to accept any number of input arguments. When the function executes, varargin is a 1-by-N cell array, where N is the number of inputs that the function receives after the explicitly declared inputs.

What does Nargout mean in MATLAB?

number of function output arguments
nargout returns the number of function output arguments specified in the call to the currently executing function. Use this syntax in the body of a function only. If the function includes varargout in its definition, then nargout returns the negative of the number of outputs.

How do you prompt input in MATLAB?

x = input( prompt ) displays the text in prompt and waits for the user to input a value and press the Return key. The user can enter expressions, like pi/4 or rand(3) , and can use variables in the workspace. If the user presses the Return key without entering anything, then input returns an empty matrix.

What is Union in MATLAB?

C = union( A,B ) returns the combined data from A and B with no repetitions. If A and B are tables or timetables, then union returns the combined set of rows from both tables.

What is a singleton MATLAB?

That’s a dimension that has a length of 1. For example, if you had a 3D image that is 400 rows by 1 column by 200 slices, the second dimension (columns) would be a singleton since it’s one.

What is Nargin and Nargout?

In the body of a function M-file, nargin and nargout indicate how many input or output arguments, respectively, a user has supplied. n argout returns the number of output arguments specified for a function. nargout(‘ fun ‘) returns the number of declared outputs for the M-file function fun .

What does ~= mean in MATLAB?

example. A ~= B returns a logical array with elements set to logical 1 ( true ) where arrays A and B are not equal; otherwise, the element is logical 0 ( false ). The test compares both real and imaginary parts of numeric arrays. ne returns logical 1 ( true ) where A or B have NaN or undefined categorical elements.

What is Nargin in octave?

: nargin () : nargin ( fcn ) Report the number of input arguments to a function. Called from within a function, return the number of arguments passed to the function. At the top level, return the number of command line arguments passed to Octave.

What is the working of the Nargin keyword?

What is the working of the nargin keyword? Explanation: The nargin command takes a value which is equal to the number of inputs given to the function. 2.

What does prompt mean in MATLAB?

The MATLAB prompt is that place where you type formulas, commands, or functions or perform tasks using MATLAB. It appears in the Command window. Normally, the prompt appears as two greater-than signs (>>).

How do you input a vector in MATLAB?

Direct link to this answer

% Enter as a string with numbers separted by commas or spaces. userResponse = input(‘enter the costs ‘, ‘s’)
% Convert any commas to spaces. userResponse = strrep(userResponse, ‘,’, ‘ ‘)
% Convert strings to numbers. numbers = sscanf(userResponse, ‘%f’)

How do you use Nargin in Python?

nargin returns the number of function input arguments given in the call to the currently executing function. Use this syntax in the body of a function only. When using an arguments validation block, the value returned by nargin within a function is the number of positional arguments provided when the function is called.

Does Nargin work with MATLAB?

The nice about MATLAB is it does exactly what you tell it to do. nargin works fine except for nargin < 3, it seems there is a bug, at least on R2018b!!!! Sign in to answer this question. Unable to complete the action because of changes made to the page. Reload the page to see its updated state.

What is the value returned by Nargin within a function?

When using an arguments validation block, the value returned by nargin within a function is the number of positional arguments provided when the function is called. For more information, see nargin in Argument Validation. nargin (fun) returns the number of input arguments that appear in the fun function definition.

When to use Nargin instead of sum2 in a function?

But this is prone to errors, if you call sum2 with 3 inputs. Therefore I prefer using NARGIN if a function is called with a different number of inputs. Sign in to answer this question.