Suppose I have three variable stored in workspace like following
a = [1 2 4 8]
b = [4 9 3 8]
c = [8 6 4 2]
and I want to make a cell array of them and store it in x using a who command like
x = who
now a new cell array is stored as x that contains { 'a' 'b' 'c' }
but how can I call the values of variables stored in a like x{1} returns me value 'a' and I want to get
[1 2 4 8]
as the result
Thanks
Rading the comment you should start in a different way. Use load with an output argument!
data=load(...)
This way all your data is stored in a struct called data with the field names a b and c. Now continue with your code:
%replacement for who, returning all field names
x=fieldnames(data)
%access first field using dynamic field names
data.(x{1})
As it was mentioned in comments to your previous question by @JohnHascall, @MatthiasW and @AndrasDeak, x = who would return you the list of variables in the form of cell array. There can be many different ways to record the values of those variables. I suggest to take advantage from the fact that the elements of x are strings, so we can access the values of the variables by using eval inside a loop:
x = who;
for ii = 1:numel(x)
y{ii} = eval(x{ii});
end
The statement inside a loop would create another cell array and would record the values of corresponding variables. So, you would end up with something like this:
x =
'a'
'b'
'c'
'd'
'e'
y =
[5] 'Hello' [1x100 double] [14x14 double] [512x512x3 uint8]
So, suppose, you now wish to access b(3). You would do it like this:
y{2}(3)
ans =
l
Weird, but works anyway.
eval is a terrible suggestion
eval is a terrible function. The problem with that function is that it breaks everything in MATLAB. It can't compile your code any more, gives rise to all kinds of hard to find errors etc. See this answer for a longer list of reasons why eval is indeed an evil function. Therefore I'd suggest setting a couple of warnings about the usage of eval around the post.