www.gusucode.com > matlab 案例源码 matlab代码程序 > matlab/DesignateConstantValueforAllQueriesOutsidetheDomainofxExample.m
%% Designate Constant Value for All Queries Outside the Domain of x % Copyright 2015 The MathWorks, Inc. %% % Define the sample points, |x|, and corresponding sample values, |v|. x = [-3 -2 -1 0 1 2 3]; v = 3*x.^2; %% % Specify the query points, |xq|, that extend beyond the domain of |x|. xq = [-4 -2.5 -0.5 0.5 2.5 4]; %% % Now evaluate |v| at |xq| using the |'pchip'| method and assign any values % outside the domain of |x| to the value, |27|. vq = interp1(x,v,xq,'pchip',27)