Saving the variables in a function call and using them next time the same function is called
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I call a function few times within a loop. Each time the function is called it calculates the value of dx,dy and AF. The next time the same function is called I need to compare the dx and dy as calculated in previous call with the ones calculated in this call and if (dx_previous =dx_new and dy_previous =dy_new) then I need to put AF= AF_previous+AF_new.
Can someone please help me with this. How do I do it
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More Answers (1)
Azzi Abdelmalek
on 7 Nov 2013
k=1
[dx,dy,AF]=youy_fcb(~)
A(k,:)=[dx dy AF];
k=k+1
[dx,dy,AF]=youy_fcb(~)
A(k,:)=[dx dy AF];
d=A(end,:)-A(en-1,:)
dx=d(1)
dy=d(2)
AF=d(3)
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Azzi Abdelmalek
on 7 Nov 2013
Edited: Azzi Abdelmalek
on 7 Nov 2013
function [dx,dy,AF]=your_fcn(~)
persistent old_dx old_dy old_AF
if isempty(old_x)
old_dx=0 % initialize
old_dy=0
old_AF=0
end
% your code
dx=f(old_dx,...)
dy=f(old_dy,...)
AF=f(old_AF,...)
old_dx=dx;
old_dy=dy
old_AF=AF
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