vfind (Mu Analysis and Synthesis Toolbox)

Unary find function across independent variable

Syntax

[iv_value,iv_index] = vfind(condition,mat)

Description

vfind is a unary find function that searches across independent variable values. The condition to be tested can be any valid MATLAB conditional statement, using the string mat to identify the matrix, and iv as the independent variable's value. Both the values and indices of the applicable independent variables are returned.

Examples

Suppose that matin is a VARYING matrix. In order to find those entries for which the product of the norm of the matrix, and the independent variable is greater than 2, use vfind as follows:

[iv_value,iv_index] = vfind('iv*norm(mat)>2',matin); 
matpropv = xtract(matin,iv_value); % extract by value 
matpropi = xtracti(matin,iv_index); % extract by index 
pkvnorm(msub(matpropv,matpropi)) % compare - both are the same