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A simple explanation of Naive Bayes Classification
...ght with a particular input dataset (training set) so that later on we may test them for unknown inputs (which they have never seen before) for which they may classify or predict etc (in case of supervised learning) based on their learning. This is what most of the Machine Learning techniques like N...
Java - get pixel array from image
I'm looking for the fastest way to get pixel data (int the form int[][] ) from a BufferedImage . My goal is to be able to address pixel (x, y) from the image using int[x][y] . All the methods I have found do not do this (most of them return int[] s).
...
How can I call controller/view helper methods from the console in Ruby on Rails?
....response
# you now have a rails response object much like the integration tests
> response.body # get you the HTML
> response.cookies # hash of the cookies
# etc, etc
share
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In what areas might the use of F# be more appropriate than C#? [closed]
...the inputs and outputs of functions is a huge time saver, both in terms of testing and reading/understanding the code. It eradicates a whole class of errors that previous systems were prone to.
Exploratory programming Working with script files and the REPL (F# Interactive) allowed me to explore the...
puts vs logger in rails rake tasks
...ctiveSupport::Logger.broadcast(ActiveSupport::Logger.new(STDOUT)))
end
Test
Here's a small Rake task to test the above code :
# lib/tasks/stdout_and_log.rake
namespace :stdout_and_log do
desc "Test if Rails.logger outputs to STDOUT and log file"
task :test => :environment do
puts "H...
Managing large binary files with Git
...ems like splitting them into a separate repo is a bad idea. We have large test suites that we break into a separate repo but those are truly "auxiliary" files.
However, you may be able to manage the files in a separate repo and then use git-submodule to pull them into your project in a sane way. ...
How can I replace every occurrence of a String in a file with PowerShell?
...
Use (V3 version):
(Get-Content c:\temp\test.txt).replace('[MYID]', 'MyValue') | Set-Content c:\temp\test.txt
Or for V2:
(Get-Content c:\temp\test.txt) -replace '\[MYID\]', 'MyValue' | Set-Content c:\temp\test.txt
...
Quickly find whether a value is present in a C array?
...s of utmost importance, the C compiler will most likely not produce the fastest code compared to what you can do with hand tuned assembly language. I tend to take the path of least resistance - for small routines like this, I just write asm code and have a good idea how many cycles it will take to e...
How can I prevent the scrollbar overlaying content in IE10?
...@tmsimont Good point. Also, they seem to have changed the comment in the latest Boostrap source file (updated my answer with the new comments), which now mentions the use of a UA sniffing script to apply this to "only the Surface/desktop Windows 8" - check out the issue link github.com/twbs/bootstra...
mongo group query how to keep fields
...e first matching entries for each group, you can try aggregating like:
db.test.aggregate({
$group: {
_id : '$name',
name : { $first: '$name' },
age : { $first: '$age' },
sex : { $first: '$sex' },
province : { $first: '$province' },
city : { $first: '$city' },
area : { $first:...