Convert single string with many numbers to vector

I have the following string

hue = '10 20 30 40 50';

That I want to turn into a vector of those 5 values

hue_vec = [10 20 30 40 50];

How can I do this? Thanks in advance!

Answer 1

[madhan ravi]

hue_vec = str2double(regexp(hue,'\d+','match'))

[madhan ravi]

If you have decimals then the expressions would be:

hue_vec = str2double(regexp(hue,'\d*[\.]?\d*','match'))

Answer 2

[Fangjun Jiang]

a=str2num(hue);

[Pati Stan]

Also works great! Thanks!

[Stephen23]

Note that str2num relies on eval.

Answer 3

[Stephen23]

Very simple, very efficient, no evil eval:

>> hue = '10 20 30 40 50';
>> vec = sscanf(hue,'%f',[1,Inf])
vec =
   10   20   30   40   50

[Pati Stan]

Thanks! Can you elborate on what you mean by eval and why it's disadvantageous?

[Stephen23]

@Pati Stan :

https://www.mathworks.com/help/matlab/matlab_prog/string-evaluation.html

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

Answer 4

[Pati Stan]

This worked beautifully! Thank you!