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String literals and escape characters in postgresql
...and run the command \copy xxxxxxxxxxx FROM /support01/db/data/xxxxxxxxx_7F.txt DELIMITER AS E'\x7f', I get parse error at "'\x7f'". If I have the standard_conforming_strings=off; and use the same command above without the E and the Quotes... ( DELIMITER AS \x7f) I get the warning message, but the da...
What's is the difference between train, validation and test set, in neural networks?
...] of a fully specified classifier.
From ftp://ftp.sas.com/pub/neural/FAQ1.txt section "What are the population, sample, training set, design set, validation"
The error surface will be different for different sets of data from your data set (batch learning). Therefore if you find a very good local m...
What’s the best RESTful method to return total number of items in an object?
...is registered with IANA iana.org/assignments/link-relations/link-relations.txt
– Darrel Miller
Sep 15 '10 at 23:48
1
...
Quick-and-dirty way to ensure only one instance of a shell script is running at a time
... if the process is killed before removing the pidfile:
LOCKFILE=/tmp/lock.txt
if [ -e ${LOCKFILE} ] && kill -0 `cat ${LOCKFILE}`; then
echo "already running"
exit
fi
# make sure the lockfile is removed when we exit and then claim it
trap "rm -f ${LOCKFILE}; exit" INT TERM EXIT
echo...
Output array to CSV in Ruby
...assuming us_eco contains the CSV table as from my gist.
CSV.open('outfile.txt','wb', col_sep: "\t") do |csvfile|
csvfile << us_eco.first.keys
us_eco.each do |row|
csvfile << row.values
end
end
Updated the gist at https://gist.github.com/tamouse/4647196
...
Ruby: How to post a file via HTTP as multipart/form-data?
...# License:: Distributed under the terms of the WTFPL (http://www.wtfpl.net/txt/copying/)
require 'rubygems'
require 'mime/types'
require 'cgi'
module Multipart
VERSION = "1.0.0"
# Formats a given hash as a multipart form post
# If a hash value responds to :string or :read messages, then it...
What is a memory fence?
...in the Linux kernel source documentation, at Documentation/memory-barriers.txt.
Most of the time, it's best to use locking primitives from your compiler or standard library; these are well tested, should have all the necessary memory barriers in place, and are probably quite optimized (optimizi...
What's the algorithm to calculate aspect ratio?
...d.com/hwsurvey, section 'Primary Display Resolution'
steam_file = './steam.txt'
# Taken from http://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Vector_Video_Standards4.svg/750px-Vector_Video_Standards4.svg.png
accepted_ratios = ['5:4', '4:3', '3:2', '8:5', '5:3', '16:9', '17:9']
#-----------...
gunicorn autoreload on source change
... /path/to/virtualenv/activate
pip install -r /path/to/project/requirements.txt
python /path/to/project/manage.py migrate
sudo supervisorctl restart project_name
Make sure to chmod u+x post-receive, and add user to sudoers. Allow it to run sudo supervisorctl without password. https://www.cybercit...
How do you include additional files using VS2010 web deployment packages?
...is is wonderful. Using this to deploy some version information stored in a txt file.
– lamarant
Nov 1 '13 at 18:03
5
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