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13 lip 2015 · I want one of those (Eq2) to only have valid values when Eq1 is yielding positive values. For all the negative values of Eq1 for given x,y, I want Eq2 to give null or invalid values. Here's the sample: x= [-10:10]; y= [-10:10]; Eq1 = @ (x,y) x - y; Eq2 = @ (x,y) x + y; [X,Y] = meshgrid (x,y); Z1 = Eq1 (X,Y);
14 mar 2013 · I would use the empty cell array {} if it is not a valid result otherwise. Using empty matrices is MATLAB standard (see Evgeni Sergeev's answer), but using an empty cell array instead of an empty numeric array ensures that you'll always end up with the same type of result.
1.) If when the function is called, some are left empty, how do I code it so that it defaults to a specific value? 2.) What if of 5 arguments, 3 are optional, how can the code recognize which one to set to default? For example: function [u, v] = somefxn(required, required2, optional, optional2, optional3)
Structure indicator that interprets a structure as a single input or as a set of parameter name-value pairs, specified as true or false (or 1 or 0). By default, the inputParser expands structures into separate inputs, where each field name corresponds to an input parameter name.
Chapter 4: Writing Scripts Variables. Variables are critical pieces of MATLAB codes that users can assign values to when writing scripts. This chapter will address uses of variables to solve algebraic operations and to analyze data. The following image shows an example of the format for creating a variable.
When you call sprintf with the format specifier %s, you cannot put a null character in the middle of the input character vector. To write a null character, use sprintf(fid, '%c', char(0)). Input argument types must match their format types.
Z1 = Eq1 (X,Y); Z2 = Eq2 (X,Y); Basically: I want Eq2 to have values for only those x,y where Eq1 is >= 0. For all x,y where Eq1 is < 0, I want Eq2 to have invalid/null values. So that when I go to graph Eq2 or just pull values from it, it only does it for areas where Eq1 is >= 0.
