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R memory management / cannot allocate vector of size n Mb
...fficient to call the inner portion of the loop via Rscript (from a BASH or Python Script), and collate/aggregate the results afterwards in a different script. That way, the memory is completely freed after each iteration. There is a bit of wasted computation from re-loading/re-computing the variable...
JSON encode MySQL results
... answered Nov 15 '09 at 13:19
PärPär
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Displaying the #include hierarchy for a C++ file in Visual Studio
...wered Jul 16 '09 at 14:37
Kim GräsmanKim Gräsman
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Group by month and year in MySQL
Given a table with a timestamp on each row, how would you format the query to fit into this specific json object format.
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Python int to binary string?
Are there any canned Python methods to convert an Integer (or Long) into a binary string in Python?
35 Answers
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How to check if the string is empty?
Does Python have something like an empty string variable where you can do:
25 Answers
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plot a circle with pyplot
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#!/usr/bin/python
import matplotlib.pyplot as plt
import numpy as np
def xy(r,phi):
return r*np.cos(phi), r*np.sin(phi)
fig = plt.figure()
ax = fig.add_subplot(111,aspect='equal')
phis=np.arange(0,6.28,0.01)
r =1.
ax.plot( *xy(r,...
How to install Boost on Ubuntu
...gex support:
sudo apt-get update
sudo apt-get install build-essential g++ python-dev autotools-dev libicu-dev build-essential libbz2-dev libboost-all-dev
Boost's bootstrap setup:
./bootstrap.sh --prefix=/usr/
Then build it with:
./b2
and eventually install it:
sudo ./b2 install
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Why can't Python find shared objects that are in directories in sys.path?
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sys.path is only searched for Python modules. For dynamic linked libraries, the paths searched must be in LD_LIBRARY_PATH. Check if your LD_LIBRARY_PATH includes /usr/local/lib, and if it doesn't, add it and try again.
Some more information (source):
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Anonymous method in Invoke call
...nswered Oct 31 '08 at 10:55
FrançoisFrançois
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