Title: PyCon AU Notes
- WebTest
- WSGIProxy
- FunkLoad
Science and Engineering
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| nullable = function(name) { | |
| union_name = paste(name, 'NULL', sep='_') | |
| tryCatch({ | |
| # existing definition | |
| getClass(union_name) | |
| return(union_name) | |
| }, | |
| error=function(e) { | |
| # new definition |
joshbode
/ gist:3403318
Created
August 20, 2012 11:20
Hack Hadoop (1.0.3) to compile native libraries on OS X (so rmr does not fall back to non-native)
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| deps: | |
| brew install md5sha1sum automake snappy hadoop | |
| tweak OS X: | |
| # export JAVA_HOME=$(/usr/libexec/java_home) | |
| hack jvm: | |
| # sudo mkdir -p ${JAVA_HOME}/lib/{i386,x86_64}/server | |
| # sudo ln -s ${JAVA_HOME}/{../Libraries,lib/i386/server}/libjvm.dylib | |
| # sudo ln -s ${JAVA_HOME}/{../Libraries,lib/x86_64/server}/libjvm.dylib |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # match on intersecting word set | |
| matching_words = function(x, y) { | |
| x = unlist(strsplit(x, ' ', fixed=TRUE)) | |
| y = strsplit(y, ' ', fixed=TRUE) | |
| # get intersections | |
| results = sapply(y, function(b) { length(intersect(x, b)) }) | |
| # break ties in intersection counts based on simplicity (length) of original phrase |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| library(robustbase) | |
| # black-scholes LGR function | |
| LGR = function (x, LGR_0, sigma) { | |
| d_1 = (log(x) + sigma ^ 2 / 2.0) / sigma | |
| d_2 = d_1 - sigma | |
| return(LGR_0 * ifelse(x > 0, pnorm(-d_2) - x * pnorm(-d_1), 1.0)) |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| library(gtools) | |
| step_length = 0.01 | |
| x = seq(0.0, 1.0, step_length) | |
| a = 20.0 | |
| b = 2.0 | |
| beta_mean = a / (a + b) |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Title</title> | |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> | |
| <script type="text/javascript" src="https://github.com/downloads/gnab/remark/remark-0.4.2.min.js"></script> | |
| <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script> | |
| <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML&delayStartupUntil=configured"> | |
| remark.on('ready', function () { | |
| MathJax.Hub.Config({ |
joshbode
/ hexmode_matrix.R
Last active
December 11, 2015 04:48
Generate a summary matrix of a series of hexmode flags.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| require(plyr) | |
| # determine the flags that make up the number | |
| find_flags = function(x, dense=TRUE) { | |
| # collapse flags if more than one provided | |
| if (length(x) > 1) { | |
| x = Reduce(`|.hexmode`, x) | |
| } | |
| # nothing to do if nothing has been set... |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| library(plyr) | |
| # compute columns - similar to transform and plyr::mutate | |
| compute = function(.data, ..., .append=FALSE) { | |
| cols = as.list(substitute(list(...))[-1]) | |
| cols = cols[names(cols) != ''] | |
| env = parent.frame() | |
| # evaluate the columns |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # evaluate a condition | |
| cond = function(expr, d=parent.frame()) { | |
| Reduce(`&`, lapply(expr, eval, d)) | |
| } | |
| # example | |
| l = list( | |
| 'Condition 1'=expression(x > 0), | |
| 'Condition 2'=expression(y < 0) |
OlderNewer