Thread Subject: Variables names to change every iteration.

Hi,

Searching on usenet for what I wanted was not easy, so I apologize if
this question has been already answered.

I need a way to make a output variable of a function to change
depending on the iteration cycle we are in:

Present:
[variable2M{k}]=function()

Desired:
for i=1:3
    [(variable + i + M){k}]=function()

Thus creating as an output the function result as variable1M{k};
variable2M{k}; variable3M{k}

I've tried something of the likes of:
for i=1:3
    aux=['variable' int2str(i) 'M'];
    [aux{k}]=function()

That doesn't work. It generates an error of mistypes.

Any hint would be useful,
Thanks,
Antonio

Antonio.C.M.Silva@gmail.com wrote in message <3722258e-24f3-
4870-8ae3-9eca8d609e31@d4g2000prg.googlegroups.com>...
> Hi,
>
> Searching on usenet for what I wanted was not easy, so I
apologize if
> this question has been already answered.
>
> I need a way to make a output variable of a function to
change
> depending on the iteration cycle we are in:
>
> Present:
> [variable2M{k}]=function()
>
> Desired:
> for i=1:3
> [(variable + i + M){k}]=function()
>
> Thus creating as an output the function result as
variable1M{k};
> variable2M{k}; variable3M{k}
>
> I've tried something of the likes of:
> for i=1:3
> aux=['variable' int2str(i) 'M'];
> [aux{k}]=function()
>
> That doesn't work. It generates an error of mistypes.
>
> Any hint would be useful,
> Thanks,
> Antonio

Use 'eval' function.

for i=1:3
    eval(sprintf('variable%dM{k} = function;',i))
end

Anh Huy Phan
RIKEN - BSI

On Jan 16, 12:34 pm, "Anh Huy Phan" <phananh...@mathworks.com> wrote:
> Antonio.C.M.Si...@gmail.com wrote in message <3722258e-24f3-
>
> 4870-8ae3-9eca8d609...@d4g2000prg.googlegroups.com>...
>
>
>
> > Hi,
>
> > Searching on usenet for what I wanted was not easy, so I
> apologize if
> > this question has been already answered.
>
> > I need a way to make a output variable of a function to
> change
> > depending on the iteration cycle we are in:
>
> > Present:
> > [variable2M{k}]=function()
>
> > Desired:
> > for i=1:3
> > [(variable + i + M){k}]=function()
>
> > Thus creating as an output the function result as
> variable1M{k};
> > variable2M{k}; variable3M{k}
>
> > I've tried something of the likes of:
> > for i=1:3
> > aux=['variable' int2str(i) 'M'];
> > [aux{k}]=function()
>
> > That doesn't work. It generates an error of mistypes.
>
> > Any hint would be useful,
> > Thanks,
> > Antonio
>
> Use 'eval' function.
>
> for i=1:3
> eval(sprintf('variable%dM{k} = function;',i))
> end
>
> Anh Huy Phan
> RIKEN - BSI

Thanks, served perfectly.

Antonio

In article <3722258e-24f3-4870-8ae3-9eca8d609e31
@d4g2000prg.googlegroups.com>, Antonio.C.M.Silva@gmail.com says...
> Hi,
>
> Searching on usenet for what I wanted was not easy, so I apologize if
> this question has been already answered.
>
> I need a way to make a output variable of a function to change
> depending on the iteration cycle we are in:
>
> Present:
> [variable2M{k}]=function()
>
> Desired:
> for i=1:3
> [(variable + i + M){k}]=function()
>
> Thus creating as an output the function result as variable1M{k};
> variable2M{k}; variable3M{k}
>
> I've tried something of the likes of:
> for i=1:3
> aux=['variable' int2str(i) 'M'];
> [aux{k}]=function()
>
> That doesn't work. It generates an error of mistypes.
>
> Any hint would be useful,
> Thanks,
> Antonio
>

You can do it with eval, but it's better not to. For rationale AND
other ways to accomplish a similar goal, please read this section of the
FAQ:
http://matlabwiki.mathworks.com/MATLAB_FAQ#How_can_I_create_variables_A1
.2C_A2.2C....2CA10_in_a_loop.3F



--
Loren
http://blogs.mathworks.com/loren/

Antonio.C.M.Silva@gmail.com writes:

> Hi,
>
> Searching on usenet for what I wanted was not easy, so I apologize if
> this question has been already answered.
>
> I need a way to make a output variable of a function to change
> depending on the iteration cycle we are in:
>
> Present:
> [variable2M{k}]=function()
>
> Desired:
> for i=1:3
> [(variable + i + M){k}]=function()
>
> Thus creating as an output the function result as variable1M{k};
> variable2M{k}; variable3M{k}
>
> I've tried something of the likes of:
> for i=1:3
> aux=['variable' int2str(i) 'M'];
> [aux{k}]=function()

You already know how to use a cell array. So why not use another cell
array?

variable{i}{k} = function()

-Peter