Get the numeric value of a variable using sprintf

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Alexandre
Alexandre 2015-10-25
编辑： Stephen23 2019-6-19
Hi,
How can I get the numerical value of a variable doing something like this:
num_1=2;
num_2=5;
num=3=9;
random_num=randsample([1 2 3],1)
Time=sprintf('num_%d',random_num)
Then I get Time=num_X but what I want is to get the numerical value associated to num_X
Any clue on how to do it?
Thank you very much.

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Star Strider
Star Strider 2015-10-25
The only way I can think to do it is to use the ‘evil eval’:
Time - num_2
Time = eval(Time)
Time =
5
But as Walter wrote, it’s best to avoid it altogether.

更多回答（1 个）

Walter Roberson
Walter Roberson 2015-10-25

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