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How to split/partition a dataset into training and test datasets for, e.g., cross validation?
What is a good way to split a NumPy array randomly into training and testing/validation dataset? Something similar to the cvpartition or crossvalind functions in Matlab.
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How to compare two dates?
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Use the datetime method and the operator < and its kin.
>>> from datetime import datetime, timedelta
>>> past = datetime.now() - timedelta(days=1)
>>> present = datetime.now()
>>> past < present
True
>&g...
jQuery - What are differences between $(document).ready and $(window).load?
...$(document).ready(function() {
// executes when HTML-Document is loaded and DOM is ready
console.log("document is ready");
});
$(window).load(function() {
// executes when complete page is fully loaded, including all frames, objects and images
console.log("window is loaded");
});
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MySQL case insensitive select
...f a MySQL SELECT query is case sensitive or case insensitive by default? And if not, what query would I have to send so that I can do something like:
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How to reference a file for variables using Bash?
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The short answer
Use the source command.
An example using source
For example:
config.sh
#!/usr/bin/env bash
production="liveschool_joe"
playschool="playschool_joe"
echo $playschool
script.sh
#!/usr/bin/env bash
source config.sh
echo $production
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Remove unwanted parts from strings in a column
...a number such as the number 12? If I do x.lstrip('12') it takes out all 1 and 2s.
– Dave
Oct 26 '16 at 21:19
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How to get week number in Python?
...ndar() is an instance-method returning a tuple containing year, weeknumber and weekday in respective order for the given date instance.
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How to embed an autoplaying YouTube video in an iframe?
I am trying to embed the new iframe version of a YouTube video and get it to auto play.
14 Answers
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What is the difference between 'java', 'javaw', and 'javaws'?
What is the difference between java , javaw , and javaws ?
5 Answers
5
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AWS Difference between a snapshot and AMI
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There are two types of AMIs (and corresponding instances):
instance-store (sometimes called S3-based). These are less common and I don't recommend them for beginners. An instance-store AMI is a copy of the root instance-store volume plus some metadat...