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How to use a variable to specify column name in ggplot
...
You can use aes_string:
f <- function( column ) {
...
ggplot( rates.by.groups, aes_string(x="name", y="rate", colour= column,
group=column ) )
}
as long as you pass the column to the fun...
How can I switch my git repository to a particular commit
...anch (locally):
With the commit hash (or part of it)
git checkout -b new_branch 6e559cb
or to go back 4 commits from HEAD
git checkout -b new_branch HEAD~4
Once your new branch is created (locally), you might want to replicate this change on a remote of the same name: How can I push my chang...
How to configure PostgreSQL to accept all incoming connections
...s regardless of the source IP address. How can this be configured in the pg_hba.conf file? I'm using postgreSQL version 8.4.
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How to prevent long words from breaking my div?
...-
More information on XBL:
http://developer.mozilla.org/en/docs/XBL:XBL_1.0_Reference
Example of implementing the CSS 'word-wrap' feature:
http://blog.stchur.com/2007/02/22/emulating-css-word-wrap-for-mozillafirefox/
-->
<binding id="wordwrap" applyauthorstyles="false">
<...
Set a default parameter value for a JavaScript function
...S2015, default parameters are in the language specification.
function read_file(file, delete_after = false) {
// Code
}
just works.
Reference: Default Parameters - MDN
Default function parameters allow formal parameters to be initialized with default values if no value or undefined is pass...
Selenium WebDriver: Wait for complex page with JavaScript to load
...elementToBeClickable(By.id("someid")));
http://www.seleniumhq.org/docs/04_webdriver_advanced.jsp
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Skip Git commit hooks
...k folder elsewhere, and setup a post-merge hook (git-scm.com/docs/githooks#_post_merge) which will detect if the pull affect the repo hook folder, and will propose to copy its content to your local hook folder (outside of the repo): that way, you can at least control if you want your hooks overridde...
Allow user to select camera or gallery for image
... final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
final PackageManager packageManager = getPackageManager();
final List<ResolveInfo> listCam = packageManager.queryIntentActivities(captureIntent, 0);
for(ResolveInfo res : listCam) {
...
month name to month number and vice versa in python
...calendar module:
import calendar
{v: k for k,v in enumerate(calendar.month_abbr)}
Before Python (2.7+) you would do
dict((v,k) for k,v in enumerate(calendar.month_abbr))
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Is 1.0 a valid output from std::generate_canonical?
...pen interval [0,1). The documention on cppreference.com of std::generate_canonical confirms this.
3 Answers
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