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Convert data.frame column format from character to factor
... the format (class) of some columns of my data.frame object ( mydf ) from charactor to factor .
6 Answers
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How can I grep for a string that begins with a dash/hyphen?
I want to grep for the string that starts with a dash/hyphen, like -X , in a file, but it's confusing this as a command line argument.
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How to pass values between Fragments
...;
step 2.to receive this data in Activity:
Intent intent = getIntent();
String message = intent.getStringExtra("message");
step 3. to send data from activity to another activity follow normal approach
Intent intent = new Intent(MainActivity.this,
TargetActivity.class);...
How to split a string into an array of characters in Python?
I've tried to look around the web for answers to splitting a string into an array of characters but I can't seem to find a simple method
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Android equivalent to NSNotificationCenter
...context, Intent intent) {
// Get extra data included in the Intent
String message = intent.getStringExtra("message");
Log.d("receiver", "Got message: " + message);
}
};
@Override
protected void onDestroy() {
// Unregister since the activity is about to be closed.
// This is somewh...
Prevent contenteditable adding on ENTER - Chrome
... Doesn't work on Chrome. First time when you press enter at the end of the string, it adds a space. The second time it works though.
– user670839
Apr 15 at 19:24
add a comment...
Getting file names without extensions
...
@Juzzz That's handy if you're working with a bare string, but if you already have a FileInfo object, there's no need to bother with Path. FileInfo already provides the "Extension" property for the purpose.
– jmbpiano
Jul 28 '15 at 14:42...
How to concatenate text from multiple rows into a single text string in SQL server?
... more compact way if you can concat the commas at the beginning and use substring to skip the first one so you don't need to do a sub-query:
SELECT DISTINCT ST2.SubjectID,
SUBSTRING(
(
SELECT ','+ST1.StudentName AS [text()]
FROM dbo.Students ST1
WHE...
Multiple commands on same line
...lution that actually works. Who do I specify this if I want to use it in a string?
– DerWeh
Jun 23 '17 at 13:51
You ca...
string.Join on a List or other type
I want to turn an array or list of ints into a comma delimited string, like this:
7 Answers
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