How to calculate time elapsed during some continous code?

2018 7 4
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更新时间：2018 7 4
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I am applying some odometry discrete equations and i want to calculate time difference between the two steps. I am trying to use etime but it does not work. Here is part of my code
rob=setParam(); % Robot Parameters previousTime=clock;
%% Running Loop while(true)
if count==1
% for Inital conditions
posX(count)=0;
posY(count)=0;
heading(count)=0;
end
rpmLeftWheel=readSpeed(encoderLeft);
rpmRightWheel=readSpeed(encoderRight);
currentTime=clock;
dt=etime(currentTime,previousTime);
[posX,posY,heading]= computeOdometry(rpmLeftWheel,rpmRightWheel,dt,count,rob);
previousTime=currentTime;
count=count+1

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Abhay SAMUDRASOK
Abhay SAMUDRASOK 2018-7-4
编辑：Abhay SAMUDRASOK 2018-7-4

0 个投票

Try tic toc in your code. It would do the job
tic
if count == 1
% for Inital conditions
posX (count) = 0;
posY (count) = 0;
heading (count) = 0;
end
rpmLeftWheel = readSpeed (encoderLeft);
rpmRightWheel = readSpeed (encoderRight);
toc

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