Text as input for function

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Hester Krommendijk
Hester Krommendijk 2020-3-11
回答： Ameer Hamza 2020-3-11
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

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回答（1 个）

Ameer Hamza
Ameer Hamza 2020-3-11
When defining a function, you need to write the name of a variable
function [x,info]=tjirp(t,f, str)
Also change the line
if str == 'kwadratisch'
You can pass the value value when calling the function
tjirp(2,1,'linear') % for example

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