Text as input for function

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0 个投票

Hi, I need tot write a function 'tjirp' that takes an input 'linear' (so the text). If I do so, I get a parse error saying it's invalid MATLAB syntax. What am I missing?

function [x,info]=tjirp(t,f, 'lineair');
if t > 1
    msg = 't moet kleiner zijn dan 1';
    error(msg)
end 
if 'lineair' == 'kwadratisch'
    x = cos(2*pi*f*t.^3/3);
else 
    x = cos(2*pi*f*t.^2/2);
end
t = 0: 0.1:1;
plot(t, x)
title('Plot van cosinus')
xlabel('tijd')
if f>50
    info = fprintf ('samplefrequentie is groot genoeg');
else 
    info = fprintf ('samplefrequentie is te klein');
end 
end 