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How to convert a data frame column to numeric type?
... that you should apply transform function in order to complete your task.
Now I'm about to demonstrate certain "conversion anomaly":
# create dummy data.frame
d <- data.frame(char = letters[1:5],
fake_char = as.character(1:5),
fac = factor(1:5),
...
Checkout one file from Subversion
... it's simpler to use svn export than it is to use the web interface, if I know what file I want. The questioner already uses SVN, so I guess it depends what client and whether that client makes it easy to use svn export. I do find the web interface better for browsing than svn ls, though :-)
...
How to launch Safari and open URL from iOS app
...erstood this but if I am opening a website and user is surfing the website now if he stops by a particular page then can I get the current webpage link in my code?
– Varun Jain
Jun 1 '16 at 7:33
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Checkout multiple git repos into same Jenkins workspace
....
Previously the Multiple SCM plugin could help with this issue but it is now deprecated. From the Multiple SCM plugin page: "Users should migrate to https://wiki.jenkins-ci.org/display/JENKINS/Pipeline+Plugin . Pipeline offers a better way of checking out of multiple SCMs, and is supported by the...
How to check if an app is installed from a web-page on an iPhone?
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As far as I know you can not, from a browser, check if an app is installed or not.
But you can try redirecting the phone to the app, and if nothing happens redirect the phone to a specified page, like this:
setTimeout(function () { wind...
When should iteritems() be used instead of items()?
....items() returned a list of (key, value) pairs. In Python 3.x, .items() is now an itemview object, which behaves different - so it has to be iterated over, or materialised... So, list(dict.items()) is required for what was dict.items() in Python 2.x.
Python 2.7 also has a bit of a back-port for key...
How to remove time portion of date in C# in DateTime object only?
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Use the Date property:
var dateAndTime = DateTime.Now;
var date = dateAndTime.Date;
The date variable will contain the date, the time part will be 00:00:00.
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Why does this method print 4?
...nTseng I also consider your answer the most comprehensible and complete by now - anyway, I would be really interested in what the stack actually looks like the moment the StackOverflowError is thrown and how this does affect the output. If it contained only a reference to a stack frame on the heap (...
ADB Android Device Unauthorized
...k if you are agree to connect the computer id.
You need to confirm it.
5. Now Check the device
It is now authorized!
adb devices
<ANDROID_SDK_HOME>\platform-tools>adb devices
List of devices attached
4df798d76f98cf6d device
...
Git ignore sub folders
...s a sub-folder with another project in e.g. Solution/Module/Project so for now I've added /*/*/bin/Debug and /*/*/*/bin/Debug (for sub folders). Looks like you have to add a wildcard sub folder for each level in your directory structure.
– Marcel
Mar 30 '10 at ...