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How do I replace NA values with zeros in an R dataframe?
...se(). (The complete 600 trial analysis ran to over 4.5 hours mostly due to including these approaches.) Please see benchmark analyses below for the complete results.
If you are struggling with massive dataframes, data.table is the fastest option of all: 40% faster than the standard Base R approach....
What do numbers using 0x notation mean?
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The number 0x6400 is 25600.
6 * 16^3 + 4 * 16^2 = 25600
For an example including letters (also used in hexadecimal notation where A = 10, B = 11 ... F = 15)
The number 0x6BF0 is 27632.
6 * 16^3 + 11 * 16^2 + 15 * 16^1 = 27632
24576 + 2816 + 240 = 27632
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Regular expression for matching HH:MM time format
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Here's this answer revised to only accept 12 hour time (including optional leading zeros): ^(0?[1-9]|1[0-2]):[0-5][0-9]$
– rgbflawed
Oct 12 '16 at 14:52
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How to build sources jar with gradle
...e: Jar) {
archiveName = "myJarName.jar"
from('src/main/resources') {
include '**'
}}
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tag vs tag
...ribute. This is specified as a MIME type; examples of supported MIME types include text/javascript, text/ecmascript, application/javascript, and application/ecmascript. If this attribute is absent, the script is treated as JavaScript.
Ref: https://developer.mozilla.org/en/docs/Web/HTML/Element/scri...
What is the difference between integration testing and functional testing? [closed]
...example, what if you test just a little bit more than the CUT? What if you include a Fibonacci function, instead of using a fixture which you had injected? I would call that functional testing, but the world disagrees with me.
What if you include time() or rand()? Or what if you call http://google.c...
Hiding the scroll bar on an HTML page
... There is no "none" option for overflow property. Available options include: visible, hidden, scroll, auto, inherit.
– Sergiy Sokolenko
Jul 21 '10 at 6:16
1301
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Importing variables from another file?
...astrophic consequences by masking objects and functions from other modules including those in the standard distro
– ennuikiller
Jun 22 '13 at 22:27
11
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how to read value from string.xml in android?
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You don't have to include this while you are in Activity. Simply getString() will let you do things.
– CopsOnRoad
Jun 26 '18 at 17:13
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Returning unique_ptr from functions
...in item 25 of his book by referring to the standard (here the local object includes the temporary objects created by the return statement). The biggest take away from the excerpt is either copy elision takes place or std::move is implicitly applied to local objects being returned. Scott mentions in ...