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Simultaneously merge multiple data.frames in a list
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I tested this solution on R2.7.2 and I get the same match.names error. So there's some more fundamental problem with this solution and my data. I used the code: Reduce(function(x, y) merge(x, y, all=T,by.x=match.by, by.y=match....
Setting Vim whitespace preferences by filetype
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@JamesMcMahon expandtab expands all tabs to spaces. sts (softtabstop) inserts spaces and tabs for indents: as many tabs as will fit in the indent based on the size of tabstop, and then spaces after that. Of course, if expandtab is on, all the tabs that get ...
how to exclude null values in array_agg like in string_agg using postgres?
...t(array_in) a
WHERE
a IS NOT NULL
;
'
LANGUAGE sql
;
Doing a pgbench test proved (with high confidence) that array_remove() is a little more than twice as fast. I did my test on double precision numbers with a variety of array sizes (10, 100 and 1000 elements) and random NULLs in between.
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Remove ALL styling/formatting from hyperlinks
...ting it, you COULD use !important, but you shouldn't. It's a bad habit to fall into.
.nav a { color:green !important; } /*I'm a bad person and shouldn't use !important */
Then it'll always be green, irrelevant of any other rule.
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Difference between “process.stdout.write” and “console.log” in node.js?
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console.log() calls process.stdout.write with formatted output. See format() in console.js for the implementation.
Currently (v0.10.ish):
Console.prototype.log = function() {
this._stdout.write(util.format.apply(this, arguments) + '\n')...
Does the APNS device token ever change, once created?
...e. Are you still any similar issue? Edited the link and posted from the latest docs.
– iosCurator
Dec 6 '17 at 0:27
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How to use Swift @autoclosure
...ction produces expected type 'Bool'; did you mean to call it with '()'?. I tested it in a playground and with the Swift REPL.
– Ole Begemann
Jun 15 '14 at 9:53
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IntelliJ - Convert a Java project/module into a Maven project/module
...for those that benefit from it.
After right-clicking the project name ("test" in this example), select "Add framework support" and check the "Maven" option.
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Why does [5,6,8,7][1,2] = 8 in JavaScript?
...other array
That's why you get
[1,2,3] + [1,2] = 1,2,31,2
i.e.
var arr_1=[1,2,3];
var arr_2=[1,2];
arr_1 + arr_2; // i.e. 1,2,31,2
Basically in the first case it is used as index of array and in the second case it is itself an array.
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Deleting a file in VBA
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1.) Check here. Basically do this:
Function FileExists(ByVal FileToTest As String) As Boolean
FileExists = (Dir(FileToTest) <> "")
End Function
I'll leave it to you to figure out the various error handling needed but these are among the error handling things I'd be considering:
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