tennies tgarc
tgarc
/ plot_interactive.py
Created
February 18, 2015 18:42
Barebones manual animations in matplotlib
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| """ | |
| Using matplotlib for manually creating animations. Works similar to FuncAnimation. Manual animation is a bit simpler than using the animations API in general since it is still capable of handling some events (like window resizing) automatically. | |
| """ | |
| import matplotlib.pyplot as plt | |
| import numpy as np | |
| # Create a figure and axis for plotting on |
tgarc
/ goldensearch.py
Created
February 27, 2015 21:59
Golden section search for finding the minimum of a function
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| # Example usage | |
| # f = lambda x: 3*(x**2)+4*x+ 5 | |
| # xhat = findmin(f,-3,2) | |
| from scipy.constants import golden | |
| def goldensearch(f,a,b,tol=1e-6): | |
| xl = b - (b-a)/golden | |
| xu = a + (b-a)/golden |
tgarc
/ opencv_cygwin
Last active
August 29, 2015 14:16
Compiling opencv 2.4.10 for cygwin with ffmpeg 2.5.3
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| # download the opencv-2.4.10 for unix | |
| # unzip the library to some temporary folder; let's say it's ~/opencv | |
| # see http://hvrl.ics.keio.ac.jp/kimura/opencv/opencv-2.4.10.html | |
| # for build patch | |
| #build ffmpeg | |
| $ cd /tmp/ | |
| $ tar xvjf ffmpeg-2.5.3.tar.bz2 | |
| $ cd ffmpeg-2.5.3/ | |
| $ ./configure --disable-yasm --disable-iconv |
tgarc
/ MultiIndex
Last active
August 29, 2015 14:24
pandas: MultiIndexing with DataFrames https://nbviewer.jupyter.org/gist/tgarc/6c40a65f648302b6b9d7#
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| { | |
| "cells": [ | |
| { | |
| "cell_type": "markdown", | |
| "metadata": {}, | |
| "source": [ | |
| "# A short tutorial on pandas MultiIndexing with DataFrames" | |
| ] | |
| }, | |
| { |
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| # Modified version of libusb1.spec from libusb1-1.0.9-0.6.rc1.el6.rpm | |
| # to create an RPM package for libusb-1.0.20 | |
| Summary: A library which allows userspace access to USB devices | |
| Name: libusb1 | |
| Version: 1.0.20 | |
| Release: 0 | |
| Source0: libusb-1.0.20.tar.bz2 | |
| #Source0: http://downloads.sourceforge.net/libusb/libusb-%{version}.tar.bz2 | |
| License: LGPLv2+ |
tgarc
/ parse_fspec.py
Last active
July 21, 2016 15:50
Parse the format specification (https://docs.python.org/2.7/library/string.html#format-specification-mini-language) from a .format style python string
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| import re | |
| from string import Formatter | |
| _fspecre = ("((?P<fill>{fill})?(?P<align>{align}))?" | |
| "(?P<sign>{sign})?" | |
| "(?P<prefix>#)?" | |
| "(?P<zeropad>0)?" | |
| "(?P<width>{width})?" | |
| "(?P<thousands>,)?" | |
| "(?:\.(?P<precision>{precision}))?" |
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| diff --git a/setup.py b/setup.py | |
| index cccebeb..1472d06 100755 | |
| --- a/setup.py | |
| +++ b/setup.py | |
| @@ -79,7 +79,9 @@ if not STATIC_LINKING: | |
| else: | |
| include_dirs = [os.path.join(portaudio_path, 'include/')] | |
| extra_link_args = [ | |
| - os.path.join(portaudio_path, 'lib/.libs/libportaudio.a') | |
| + os.path.join(portaudio_path, 'portaudio_static_x64.lib') |
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| """ | |
| Example of keeping a simulated IO callback thread fed using separate master and daemon (I/O) processes. | |
| """ | |
| import multiprocessing, threading, Queue | |
| import time | |
| import sys | |
| import urllib2 | |
| IOBLOCKSZ = 4096 # made up IO block size | |
| IPCBLOCKSZ = 8192 # a size that is guaranteed to be larger than BLOCK_SZ |
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| """ | |
| Example of keeping a simulated IO callback thread fed using separate master and daemon (I/O) processes. | |
| Builds off of mpex.py: https://gist.github.com/tgarc/7120c00eb3eb5f736be93c70ade1d68a | |
| """ | |
| import multiprocessing, threading, Queue | |
| import time | |
| import sys | |
| import urllib2 |
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| #!/usr/bin/env python2 | |
| """ | |
| Daemon for full duplex streaming with PyAudio | |
| Note that recordings are always delayed by some amount and are therefore longer than the input file | |
| Builds off of mpex.py: https://gist.github.com/tgarc/7120c00eb3eb5f736be93c70ade1d68a | |
| """ | |
| import multiprocessing, threading, Queue | |
| import time |
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