how to rectify the error Index exceeds matrix dimensions.?

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prajwal prabhu
prajwal prabhu 2017-4-27
编辑： Torsten 2017-4-27
i am doing real time plotting of my sensor output in matlab. How to rectify the above error.This is my code.
if true
clc
clear all
close all
a=arduino('com13','uno');
a1_pin='D9';
tic;
i=0;
while (toc<inf)
i=i+1;
t(i)=toc;
v(i)=readDigitalPin(a,'D2');
plot(t,v,'b')
axis([0 inf 0 3])
pause(0.1)
if((v(i)-v(i+1)==1)) tic else d(i)=toc; end end
end

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回答（1 个）

Torsten
Torsten 2017-4-27
When you enter the if-statement, v(i+1) does not yet exist because the array v is only constructed up to element v(i).
Best wishes
Torsten.
  2 个评论
Torsten
Torsten 2017-4-27
编辑：Torsten 2017-4-27
Rectify the error that v(i+1) is undefined within the if-statement.
That's the only thing I can tell since I don't know what you are trying to do in your code.
Best wishes
Torsten.

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