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For each row in an R dataframe

... plate value1 value2 1 A P1 1 100 2 B P2 2 200 3 C P3 3 300 > f <- function(x, output) { wellName <- x[1] plateName <- x[2] wellID <- 1 print(paste(wellID, x[3], x[4], sep=",")) cat(paste(wellID, x[3], x[4], sep=","), file= output, appen...
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TSQL - Cast string to integer or return default value

... ELSE CONVERT(bigint, @Value) END IF ABS(@I) > 2147483647 RETURN NULL RETURN @I END GO -- Testing DECLARE @Test TABLE(Value nvarchar(50)) -- Result INSERT INTO @Test SELECT '1234' -- 1234 INSERT INTO @Test SELECT '1,234' -- 1234 INSERT INTO @Test SE...
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How to return multiple lines JSX in another return statement in React?

... the tags as function calls (see docs). Then the first one becomes: {[1,2,3].map(function (n) { return React.DOM.p(...); })} And the second one: {[1,2,3].map(function (n) { return ( React.DOM.h3(...) React.DOM.p(...) ) })} It should now be clear that the second snippet doesn't re...
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Stop handler.postDelayed()

... Juan José Melero Gómez 2,53711 gold badge1414 silver badges3030 bronze badges answered Mar 28 '14 at 17:05 RaghunandanRaghunand...
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TypeScript: problems with type system

...| edited Oct 9 '17 at 17:03 Jeremy Wiebe 3,7402020 silver badges3131 bronze badges answered Dec 2 '12 at...
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How can I show hidden files (starting with period) in NERDTree?

... 367 Press I (Shift+i) to toggle hidden files in the NERDTree explorer window. To enable this beha...
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How can I split a text into sentences?

... 153 The Natural Language Toolkit (nltk.org) has what you need. This group posting indicates this do...
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Can't find the PostgreSQL client library (libpq)

... 348 $ sudo su $ env ARCHFLAGS="-arch x86_64" gem install pg Building native extensions. This co...
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What is the difference between user variables and system variables?

... 132 Right-click My Computer and go to Properties->Advanced->Environmental Variables... What'...
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Assign output of os.system to a variable and prevent it from being displayed on the screen [duplicat

...is popen: os.popen('cat /etc/services').read() From the docs for Python 3.6, This is implemented using subprocess.Popen; see that class’s documentation for more powerful ways to manage and communicate with subprocesses. Here's the corresponding code for subprocess: import subproce...