Table of Contents
What does Varargin do in MATLAB?
varargin is an input variable in a function definition statement that enables the function to accept any number of input arguments. Specify varargin by using lowercase characters. After any explicitly declared inputs, include varargin as the last input argument .
How do you make a variable output in MATLAB?
disp( X ) displays the value of variable X without printing the variable name. Another way to display a variable is to type its name, which displays a leading “ X = ” before the value. If a variable contains an empty array, disp returns without displaying anything.
What is an output argument in MATLAB?
When you use a function as part of an expression, such as an if statement, then MATLAB® calls the function with one output argument. Therefore, the nargout function returns 1 within expressions. If you check for a nargout value of 0 within a function and you specify the value of the output, MATLAB populates ans .
What is return MATLAB?
return forces MATLAB® to return control to the invoking program before it reaches the end of the script or function. The invoking program is a script or function that calls the script or function containing the call to return .
In which case would you use Varargin in a function you write in MATLAB?
Direct link to this answer
- varargin is used when the number of input parameter might change. Basically, it puts all input arguments into a cell array. The number of input parameters is given by.
- You can access any of the input values inside the function by.
- where ind is the index number of your argument.
How do you show variables in MATLAB?
Command Window — To view the value of a variable in the Command Window, type the variable name. For the example, to see the value of a variable n , type n and press Enter. The Command Window displays the variable name and its value. To view all the variables in the current workspace, call the who function.
How do you give an argument in MATLAB?
There are different approaches to passing input arguments as shown below; use the method that is most appropriate for your application.
- Define your input parameters before executing the script.
- Convert your script file to a function.
- Store your input parameters in a file that the MATLAB script can open.
How do you enter an argument into a function?
Using input and output arguments in functions
- open an editor to modify the source code.
- change the value assigned to the variable value.
- save the new source code.
- run the new function.
How can I return two values in MATLAB?
Return Multiple Values From a Function Using the Box Brackets in MATLAB. If you want to return multiple values from a function, you have to define all of them inside a box bracket separated by a comma and assign them the required output within the function bounds.
In which case would you use Varargin in a function you right?
For example, if you have written a function which sometimes plots a line plot and sometimes makes a bar plot depending on the value of some flag which the user passes in, but you don’t want to force the user to pass any flags (e.g. a sensible default is the line plot), varargin is a convenient way to handle this …
How does Nargin work in MATLAB?
nargin( fun ) returns the number of input arguments that appear in the fun function definition. If the function includes varargin in its definition, then nargin returns the negative of the number of inputs. For example, if function myFun declares inputs a , b , and varargin , then nargin(‘myFun’) returns -3 .
How do you import variables in MATLAB?
To load saved variables from a MAT-file into your workspace, double-click the MAT-file in the Current Folder browser. To load a subset of variables from a MAT-file on the Home tab, in the Variable section, click Import Data. Select the MAT-file you want to load and click Open.
How do you create a function file in MATLAB?
Syntax for Function Definition
- function myOutput = myFunction(x) If your function returns more than one output, enclose the output names in square brackets.
- function [one,two,three] = myFunction(x) If there is no output, you can omit it.
- function myFunction(x) Or you can use empty square brackets.