Hi Steve,
I think it's an error in the documentation. PDL::Ops claims that ~
serves as an alias to 'bitnot'.
Is there anywhere else besides PDL::Impatient that you saw a reference
to ~ as a transpose operator?
cheers,
Derek
Steve Chapel wrote:
Running the following program:
#!/usr/bin/perl
use PDL;
my $y = pdl([[1,2,3],[4,5,6],[7,8,9]]);
print ~$y;
using ActivePerl 5.8.8.820 and PDL 2.4.3 gives the following output:
[
[ -2 -3 -4]
[ -5 -6 -7]
[ -8 -9 -10]
]
According to the PDL documentation
<http://pdl.sourceforge.net/PDLdocs/Impatient.html#matrix_functions>,
"transpose() does what it says and is a convenient way to turn row vectors
into column vectors. It is bound to the unary operator '~' for
convenience."
However, transpose() returns the expected result:
[
[1 4 7]
[2 5 8]
[3 6 9]
]
Is this a bug in PDL? An error in the documentation?
Thanks,
Steve
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