Popular recipes tagged "statistics" but not "regular_expressions"

Disk usage (Python)

2012-10-06T15:33:40-07:00

Python recipe 577972 by Giampaolo Rodolà (disk, python, python3, space, statistics, usage). Revision 6.

Provides disk usage statistics (total, used and free disk space) about a given path.

This recipe was initially developed for psutil:

http://code.google.com/p/psutil/issues/detail?id=172

...and then included into shutil module starting from Python 3.3:

The recipe you see here is a modified version of the latter one in that the Windows implementation uses ctypes instead of a C extension module. As such it can be used with python >= 2.5.

Dirt simple map/reduce (Python)

2011-05-15T16:46:55-07:00

Python recipe 577676 by Raymond Hettinger (analysis, crosstab, functional, map_reduce, pivot_table, statistics). Revision 9.

Simple tool for analyzing datasets.

Python reader for spss sav files (Python)

2011-07-25T18:59:49-07:00

Python recipe 577650 by Albert-Jan Roskam (files, pasw, sav, spss, statistics). Revision 3.

Python Program to read Spss system files (.sav)

* version 2 (FASTER!) *
Requires spssio32.dll, which can be freely downloaded from: https://www.ibm.com/developerworks/mydeveloperworks/wikis/home/wiki/We70df3195ec8_4f95_9773_42e448fa9029/page/Downloads%20for%20IBM%C2%AE%20SPSS%C2%AE%20Statistics?lang=en
You can also find this dll in the installation directory of SPSS (although SPSS is _not_ needed!)
The .dll should be saved in the same location as this program.
Parameters: savFileName: the file name of the spss data file; returnHeader: Boolean that indicates whether the first record should be a list of variable names (default: True); recodeSysmisTo: indicates to which value missing values should be recoded (default: ""); selectVars: indicates which variables in the file should be selected.The variables should be specified as a list or a tuple of valid variable names. If None is specified, all variables in the file are used (default: None); verbose: Boolean that indicates whether information about the spss data file (e.g., number of cases, variable names, file size) should be printed on the screen (default: True).
rawMode: Boolean that indicates whether values should get SPSS-style formatting,and whether date variables (if present) should be converted to ISO-dates. If True, the program does not format any values, which increases processing speed. (default: = False) interfaceEncoding Indicates the mode in which text communicated to or from the I/O Module will be. Valid values are 'UTF-8' or 'CODEPAGE' (default = 'CODEPAGE')
Typical use: savFileName = "d:/someFile.sav" with SavReader(savFileName) as sav: header = sav.next() for line in sav: process(line)
Note: --New version: If you downloaded this previously, use the current version as it is MUCH faster!! --this code currently only works on Windows (32 bits). I might make it work on Linux Ubuntu 10 at some point. --date fields in spss are represented as the number of seconds since the Gregorian calendar. The program converts these, wherever possible, to ISO-dates (yyyy-mm-dd).

Any feedback is welcome! I'm still learning!

monty hall problem (Python)

2010-08-25T20:02:17-07:00

Python recipe 577374 by markcannoli (game, statistics).

Monty_Hall is a gameshow host that proves that it is statistically better to switch when offered the chance after getting additional knowledge in a fair game. The caveat is "statistically better", which means any single trial can have unsupporting results. But "statistically better" is exactly where the fist-fights at bars and family reunions start, so no matter the single trial outcomes.

Fast Running Median using an Indexable Skiplist (Fast version) (Python)

2010-03-03T11:06:29-08:00

Python recipe 577073 by Raymond Hettinger (algorithm, indexable, median, running, skiplist, statistics). Revision 5.

Fast version of r576930 reimplemented using a list of lists instead of a node class.