Use of this symbol [~]
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chaos4u2
am 24 Feb. 2013
Kommentiert: Daniel
am 23 Apr. 2021
Hello, I have curiosity for the use of this symbol in brackets: [~].
For example, I've seen it, calling a function: [~]=function(S).
Where get stored this symbol, what it contents, and why is it used?
Thanks a lot!
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Azzi Abdelmalek
am 24 Feb. 2013
Bearbeitet: Azzi Abdelmalek
am 24 Feb. 2013
Example
x=[2 1 3 0 5]
[val,idx]=sort(x)
The result
val =
0 1 2 3 5
idx =
4 2 1 3 5
If we want to get just idx
[~,idx]= sort(x)
the result is
idx =
4 2 1 3 5
5 Kommentare
Walter Roberson
am 9 Mai 2019
There is no equivalent in Python. Python cannot return to multiple variables.
You need to design each Python function to return an Object (equivalent to MATLAB struct), or a tuple (which is immutable), or a list.
Whatever you decide, you could put None into the first output location. However, there still needs to be something there to receive the entire set of outputs and pull out the remaining wanted values.
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