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index of control loop that is a vector component

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genevois pierre
genevois pierre 2012-10-4
hi all,
in order to make my code more compact, i tried this :
for x(1) = lb(1) : d_x(1) : ub(1)
for x(2) = lb(2) : d_x(2) : ub(2)
... and so on ...
and I got an error coming from left side of = sign, e.g. from x(1) and x(2) : Matlab R2010b seems not to accept such indexes that are array elements, meanwhile they are equivalent to scalars.
Is there another way of doing than using everywhere scalars for indexes, e.g. :
x1 = x(1);
x2 = x(2);
for x1 = lb(1) : d_x(1) : ub(1)
for x2 = lb(2) : d_x(2) : ub(2)
... and so on ...
notice that right hand side of = sign seems OK. Also, for the sake of readability, I don't want to use recursivity.
Thanks to all

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Azzi Abdelmalek
Azzi Abdelmalek 2012-10-4
编辑：Azzi Abdelmalek 2012-10-4
why for x(1) use
for x=
and why x=x(l)? the values lb(1) : d_x(1) : ub(1) will be assigned to x!
  2 个评论
genevois pierre
genevois pierre 2012-10-4
Thanks for your answer ; actually I have seven variables : x(1) to x(7) (i.e. those 7 variables are contained in the vector x), to make vary independantly, using FOR loops. In the example, I showed only the two first FOR statements.
Azzi Abdelmalek
Azzi Abdelmalek 2012-10-4
编辑：Azzi Abdelmalek 2012-10-4
when you use a variable x in the loop, the name you give to the variable is not important.
for x1=1:10
y=sin(x1) %for example
end
is the same then
for x2=1:10
y=sin(x2) %for example
end

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