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Statistics: combinations in Python
...See scipy.special.comb (scipy.misc.comb in older versions of scipy). When exact is False, it uses the gammaln function to obtain good precision without taking much time. In the exact case it returns an arbitrary-precision integer, which might take a long time to compute.
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How do I find which rpm package supplies a file I'm looking for?
As an example, I am looking for a mod_files.sh file which presumably would come with the php-devel package. I guessed that yum would install the mod_files.sh file with the php-devel x86_64 5.1.6-23.2.el5_3 package, but the file appears to not to be installed on my filesystem.
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Cosine Similarity between 2 Number Lists
...d to calculate the cosine similarity between two lists , let's say for example list 1 which is dataSetI and list 2 which is dataSetII . I cannot use anything such as numpy or a statistics module. I must use common modules (math, etc) (and the least modules as possible, at that, to reduce tim...
Reshaping data.frame from wide to long format
...ou can use the same melt function as in the reshape2 package (which is an extended & improved implementation). melt from data.table has also more parameters that the melt-function from reshape2. You can for example also specify the name of the variable-column:
library(data.table)
long <- mel...
How to round float numbers in javascript?
I need to round for example 6.688689 to 6.7 , but it always shows me 7 .
17 Answers
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How do I write JSON data to a file?
... - data is a dictionary and not yet JSON-encoded. Write it like this for maximum compatibility (Python 2 and 3):
import json
with open('data.json', 'w') as f:
json.dump(data, f)
On a modern system (i.e. Python 3 and UTF-8 support), you can write a nicer file with
import json
with open('data....
Octave-Gnuplot-AquaTerm error: set terminal aqua enhanced title “Figure 1”…unknown terminal type"
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I had to add setenv("GNUTERM","X11") to OCTAVE_HOME/share/octave/site/m/startup/octaverc (OCTAVE_HOME usually is /usr/local) to make it work permanently.
Solution found and more details on: http://www.mac-forums.com/forums/os-x-apps-games/242997-plots-oct...
“You have mail” message in terminal, os X [closed]
...g associated with an Alfred Workflow [at a guess]) made a change to the OS X system to start presenting Terminal bash notifications. Prior to that, it appears Wordpress had attempted to use the Local Mail system to send a message. The message bounced, due to it having an invalid Recipient address. T...
How to run a method every X seconds
... developing an Android 2.3.3 application and I need to run a method every X seconds .
8 Answers
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Call a function with argument list in python
... function inside another function in python, but can't find the right syntax. What I want to do is something like this:
6 A...