alexlib

alexlib

 def randomvariate(pdf,n=1000,xmin=0,xmax=1):  
  """  
 Rejection method for random number generation  
 ===============================================  
 Uses the rejection method for generating random numbers derived from an arbitrary   
 probability distribution. For reference, see Bevington's book, page 84. Based on  
 rejection*.py.  
   
 Usage:  
 >>> randomvariate(P,N,xmin,xmax)  

alexlib

import numpy as np
import matplotlib as mpl
mpl.use('pgf')

def figsize(scale):
    fig_width_pt = 469.755                          # Get this from LaTeX using \the\textwidth
    inches_per_pt = 1.0/72.27                       # Convert pt to inch
    golden_mean = (np.sqrt(5.0)-1.0)/2.0            # Aesthetic ratio (you could change this)
    fig_width = fig_width_pt*inches_per_pt*scale    # width in inches
    fig_height = fig_width*golden_mean              # height in inches

alexlib

import numpy as np
import matplotlib as mpl
mpl.use('pgf')

def figsize(scale):
    fig_width_pt = 469.755                          # Get this from LaTeX using \the\textwidth
    inches_per_pt = 1.0/72.27                       # Convert pt to inch
    golden_mean = (np.sqrt(5.0)-1.0)/2.0            # Aesthetic ratio (you could change this)
    fig_width = fig_width_pt*inches_per_pt*scale    # width in inches
    fig_height = fig_width*golden_mean              # height in inches

alexlib

import numpy as np
from numpy import pi
import matplotlib.pyplot as plt
import matplotlib.animation as animation

fig = plt.figure()
fig.set_dpi(100)
ax1 = fig.add_subplot(1,1,1)

#Diffusion constant

alexlib

Git Annex

git annex - this is a separate bit of software that sits "atop" git and lets you (in it's words):

allows managing files with git, without checking the file contents into git.

Say what!? It basically stores your directory contents in git via symlinks, so really you are just checking in a bunch of symlinks - not content. This keeps the repo very small.

alexlib

#!/bin/sh

# Post-commit hook for revision-awsm-ness

function gettempfilename()
{
    tempfilename=$1-$RANDOM$RANDOM.tex
    if [ -e $tempfilename ]
    then
        tempfilename=$(gettempfilename)

alexlib

function [maxtab, mintab]=peakdet(v, delta, x)
%PEAKDET Detect peaks in a vector
%        [MAXTAB, MINTAB] = PEAKDET(V, DELTA) finds the local
%        maxima and minima ("peaks") in the vector V.
%        MAXTAB and MINTAB consists of two columns. Column 1
%        contains indices in V, and column 2 the found values.
%      
%        With [MAXTAB, MINTAB] = PEAKDET(V, DELTA, X) the indices
%        in MAXTAB and MINTAB are replaced with the corresponding
%        X-values.

alexlib

git clone git://github.com/OpenPTV/openptv.git
cd openptv/liboptv
mkdir build && cd build
cmake ../
make
make verify
sudo make install

cd ../../py_bind 
python setup.py build_ext --inplace -I/usr/local/include -L/usr/local/lib

alexlib

Cython

Cython has two major benefits:

1. Making python code faster, particularly things that can't be done in scipy/numpy
2. Wrapping/interfacing with C/C++ code

Cython gains most of it's benefit from statically typing arguments. However, statically typing is not required, in fact, regular python code is valid cython (but don't expect much of a speed up). By incrementally adding more type information, the code can speed up by several factors. This gist just provides a very basic usage of cython.