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Load multiple packages at once
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Be nice if R::base added this lapply trick native to library(). Be great to be able say: library(c("plyr", "umx"))
– tim
Jun 28 '15 at 18:56
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bash/fish command to print absolute path to a file
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#! /bin/sh
echo "$(cd "$(dirname "$1")"; pwd -P)/$(basename "$1")"
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Why can't R's ifelse statements return vectors?
...gested by Cath, but it can work with existing pre-assigned vectors
It is based around using the get() like so:
a <- c(1,2)
b <- c(3,4)
get(ifelse(TRUE, "a", "b"))
# [1] 1 2
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Algorithm to compare two images
...l types of copied images. Again this is just an idea I have had, it's not based on any researched academia as far as I am aware (I haven't look hard though), so it may be a lot of work for you with limited/no results.
Zipping
Ow's answer in this question is excellent, I remember reading about the...
select and update database record with a single queryset
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Django database objects use the same save() method for creating and changing objects.
obj = Product.objects.get(pk=pk)
obj.name = "some_new_value"
obj.save()
How Django knows to UPDATE vs. INSERT
If the object’s primary key at...
onActivityResult is not being called in Fragment
...ss the result to the nested fragment, you have to do that manually in your base fragment.
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
Fragment fragment = (Fragment) getChildFragmentManager().findFrag...
REST authentication and exposing the API key
...f-token.js?apiKey=abc123 is requested:
Look up the key abc123 in the database and get a list of valid domains for that key.
Look for the CSRF validation cookie. If it does not exist, generate a secure random value and put it in a HTTP-only session cookie. If the cookie did exist, get the existing...
How to use ADB to send touch events to device using sendevent command?
...0x69E are 757 and 1694 respectively... What did you use to convert between bases?
– ghoti
Oct 17 '16 at 20:53
Thanks @...
Firebug-like debugger for Google Chrome
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Remember on some linux-based system it doesn't get installed automatically, so you need to install it manually: sudo apt-get install chromium-browser-inspector
– Manuel
Nov 10 '09 at 13:00
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Update my github repo which is forked out from another project [duplicate]
... you're working on an unpushed branch you can also use git fetch and git rebase to rebase your work without needing a merge.
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