create a new variable whos name is conditional

Hi. How can I creat a new variable whose name I dont know yet. A simple example is below. Thanks

    >> [a,b,c]=xlsread('myfile.xlsx')

    a =

         []

    b = 

        'new_var'

    c = 

        'new_var'

 .... now I want to create a variable whose name is the same as the string taken from b . i.e I want to creat a variable with name new_var . and then give it a value ( new_var=10). How?

Answer 1

[Mischa Kim]

Use the genvarname command.

mv = genvarname('my_varname');
eval([mv '= 123;']);
my_varname

[Milad]

I dont know the name of the variable. The name is imported from excel. (You named it my_varname).

what is the code for generating the name and giving a value of 10 to it?

[Mischa Kim]

Milad, it is pretty much the same. From your code, b is a string, just like

b  = 'new_var'
mv = genvarname(b);
eval([mv '= 10;']);
new_var

In other words, you create (generate) a variable name with the string contained in b, then evaluate the command sequence [mv '= 10;'] which puts the newly generated variable with its content in the workspace.

[Milad]

Thanks Mischa. I just understood what you was saying. you were right. The point was that when I read from excel, I should use genvarname like this :

mv=genvarname(b{1})

Thanks for introducing this command and for ur patience.

Answer 2

[Azzi Abdelmalek]

Look at this link http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F

You can do it like:

varname='new_var'
assignin('base',varname,[1 2 3])
new_var

But this is not a good idea like you can read it in the link

[Milad]

In your code you already know the name of variable. suppose that you dont know what is written in excel file!

[Azzi Abdelmalek]

I don't know the name of the variable

[a,b,c]=xlsread('myfile.xlsx')
assignin('base',b,[1 2 3])