What does the command A <- A[,-1] do ?

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Jayan Thiruthiyil
Jayan Thiruthiyil 2018-7-25
评论： Jayan Thiruthiyil 2018-7-27
What does the command A <- A[,-1] do ?
  1 个评论
Adam
Adam 2018-7-25
It produces this by default
Undefined function or variable 'A'.
Or this if A is defined as a double
Error: "A" was previously used as a variable, conflicting with its use here as the name of a function or
command.
See "How MATLAB Recognizes Command Syntax" in the MATLAB documentation for details.
or probably a variety of other error messages too!

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Jan
Jan 2018-7-25
编辑：Jan 2018-7-25
I have no idea, most of all because it is not a MATLAB command.
  1. There is no "<-" operator in Matlab
  2. You cannot apply an indexing by square brackets, so "A[]" is not recognized
  3. Indexing works with round parentheses: "A()", but then the index ",-1" cannot start with a command and cannot be negative.
So this is simply not Matlab. The answer is: It produces an error.

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