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adding noise to a signal in python
...nt to add some random noise to some 100 bin signal that I am simulating in Python - to make it more realistic.
7 Answers
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How can I convert an RGB image into grayscale in Python?
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@BluePython: LA mode has luminosity (brightness) and alpha. If you use LA mode, then greyscale.png will be an RGBA image with the alpha channel of image.png preserved. If you use L mode, then greyscale.png will be an RGB image (wi...
GPL and LGPL open source licensing restrictions [closed]
...to the software.
The question of usage is a little more complicated. GNU/Linux is released under the GPL. Nothing forbids you to write software that runs under Linux regardless of the licence of your software. However, you cannot distribute Linux together with your software. That is often a proble...
How do I update Node.js?
...Unfortunately that din't worked for me.. was doing exact as described on a Linux machine - 'node -v' before and after showed 'v0.10.5'
– Michael
Jul 20 '15 at 9:47
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How to dynamically compose an OR query filter in Django?
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I would debate that it is more pythonic to use the builtin OR and AND operators (| and &). q_objects |= Q(pk=item)
– Bobort
Aug 24 '16 at 15:46
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Check if a string contains a number
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use str.isalpha()
Ref: https://docs.python.org/2/library/stdtypes.html#str.isalpha
Return true if all characters in the string are alphabetic and there
is at least one character, false otherwise.
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Putting an if-elif-else statement on one line?
I have read the links below, but it doesn't address my question.
Does Python have a ternary conditional operator? (the question is about condensing if-else statement to one line)
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What is the most efficient way to loop through dataframes with pandas? [duplicate]
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BTW itertuples returns named tuples ( docs.python.org/3/library/…) so you can access each column by name with row.high or getattr(row,'high')
– seanv507
Apr 17 '16 at 18:51
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Call a function from another file?
...unction(a, b). The reason why this may not work, is because file is one of Python's core modules, so I suggest you change the name of your file.
Note that if you're trying to import functions from a.py to a file called b.py, you will need to make sure that a.py and b.py are in the same directory.
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Google Play on Android 4.0 emulator
...dding it to the image
Now start yaffey on Windows or a similar utility on Linux or Mac, and open system.img for the emulator image you want to modify. I modify most often the one in [...]\android-sdk\system-images\android-17\x86.
Rename the original system.img to system-original.img. Under yaffey,...