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adding noise to a signal in python
I want to add so<em>mem>e rando<em>mem> noise to so<em>mem>e 100 bin signal that I a<em>mem> si<em>mem>ulating in Python - to <em>mem>ake it <em>mem>ore realistic.
7 Answer...
in_array() and <em>mem>ultidi<em>mem>ensional array
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in_array() does not work on <em>mem>ultidi<em>mem>ensional arrays. You could write a recursive function to do that for you:
function in_array_r($needle, $haystack, $strict = false) {
foreach ($haystack as $ite<em>mem>) {
if (($strict ? $ite<em>mem> === $needle : $ite<em>mem>...
Why doesn't this code si<em>mem>ply print letters A to Z?
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Fro<em>mem> the docs:
PHP follows Perl's convention when dealing with arith<em>mem>etic operations on character variables and not C's.
For exa<em>mem>ple, in Perl 'Z'+1 turns into 'AA', while in C 'Z'+1 turns into '[' ( ord('Z') == 90, ord('[') == ...
How can I SELECT rows with <em>Mem>AX(Colu<em>mem>n value), DISTINCT by another colu<em>mem>n in SQL?
<em>Mem>y table is:
18 Answers
18
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iOS I<em>mem>age Orientation has Strange Behavior
For the past few weeks I've been working with i<em>mem>ages in objective-c and noticing a lot of strange behavior. First, like <em>mem>any other people, I've been having this proble<em>mem> where i<em>mem>ages taken with the ca<em>mem>era (or taken with so<em>mem>ebody else's ca<em>mem>era and <em>Mem><em>Mem>S'd to <em>mem>e) are rotated 90 degrees. I wasn't sure w...
Are the days of passing const std::string &a<em>mem>p; as a para<em>mem>eter over?
...ested that the reasons to pass std::vector and std::string by const &a<em>mem>p;a<em>mem>p; are largely gone. He suggested that writing a function such as the following is now preferable:
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What's the si<em>mem>plest way to print a Java array?
...ide toString() , so if you try to print one directly, you get the classNa<em>mem>e + '@' + the hex of the hashCode of the array, as defined by Object.toString() :
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How to have git log show filena<em>mem>es like svn log -v
SVN's log has a "-v" <em>mem>ode that outputs filena<em>mem>es of files changed in each co<em>mem><em>mem>it, like so:
11 Answers
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What is the --save option for np<em>mem> install?
I saw so<em>mem>e tutorial where the co<em>mem><em>mem>and was:
11 Answers
11
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How do I append one string to another in Python?
...s to extend the string in place.
The end result is that the operation is a<em>mem>ortized O(n).
e.g.
s = ""
for i in range(n):
s+=str(i)
used to be O(n^2), but now it is O(n).
Fro<em>mem> the source (bytesobject.c):
void
PyBytes_ConcatAndDel(register PyObject **pv, register PyObject *w)
{
PyBytes_C...