MATLAB Programming Fundamentals - MathWorks

printPhoto('myfile.jpg')

File name: myfile.jpg

Finish: glossy

Using defaults:

'finish' 'color' 'width' 'height'

printPhoto(100)

Error using printPhoto (line 23)

The value of 'filename' is invalid. It must satisfy the function: ischar.

printPhoto('myfile.jpg','satin')

Error using printPhoto (line 23)

The value of 'finish' is invalid. Expected input to match one of these strings:

'glossy', 'matte'

The input, 'satin', did not match any of the valid strings.

printPhoto('myfile.jpg','height',10,'width',8)

File name: myfile.jpg

Finish: glossy

Using defaults:

'finish' 'color'

To pass a value for the nth positional input, either specify values for the previous (n – 1)

inputs or pass the input as a parameter name and value pair. For example, these function

calls assign the same values to finish (default 'glossy') and color:

printPhoto('myfile.gif','glossy','CMYK') % positional

printPhoto('myfile.gif','color','CMYK') % name and value

See Also

inputParser | varargin

More About

• “Input Parser Validation Functions” on page 21-21

21 Function Arguments