Matlab varargin

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Help Center Help Center. When you generate code, you see this error message:. At code generation time, the code generator must be able to determine the value of an index into varargin or varagout. When varargin or varagout are indexed in a for -loop, the code generator determines the index value for each loop iteration by unrolling the loop. Loop unrolling makes a copy of the loop body for each loop iteration.

Matlab varargin

Help Center Help Center. This example shows how to define a function that accepts a variable number of input arguments using varargin. The varargin argument is a cell array that contains the function inputs, where each input is in its own cell. Create a function in a file named plotWithTitle. If the function receives an odd number of inputs, it assumes that the last input is a title. Call plotWithTitle with two sets of x , y inputs and a title. You can use varargin alone in an input argument list, or at the end of the list of inputs, such as. Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select:. Select the China site in Chinese or English for best site performance.

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Help Center Help Center. Specify varargin by using lowercase characters. After any explicitly declared inputs, include varargin as the last input argument. 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. If the function receives no inputs after the explicitly declared inputs, then varargin is an empty cell array.

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Matlab varargin

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Tags varargin varargout cell noncell. Toggle Main Navigation. Cancel Copy to Clipboard. Search MathWorks. Close Mobile Search. On the right hand side of your example, the syntax is being used to create function call arguments. Hopefully it is now correct. The amount of improvement depends on whether varargin is empty. Certainly it would provide a good, relatively simple, route into OOP for a first time, but if the solution you have works and you are pressed for time then just run with that. You may receive emails, depending on your communication preferences. Heuristics fail to identify that loop unrolling is warranted for a particular for -loop. For your example code:.

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Vote 1. The code is about 2x faster than in the previous release. Close Mobile Search. Toggle Main Navigation. Choose a web site to get translated content where available and see local events and offers. Accepted Answer. The heuristics do not detect the relationship between the index j and the loop counter i. See Also. Other MathWorks country sites are not optimized for visits from your location. Accepted Answer: Stephen Accepted Answer: Walter Roberson. Choose a web site to get translated content where available and see local events and offers.