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Mongo interface [closed]
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MongoHub is not quite active right now.
– Musaffa
Apr 26 '14 at 7:59
@Musaffa ...
Selecting only numeric columns from a data frame
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## nums <- sapply(x, is.numeric)
For a more idiomatic modern R I'd now recommend
x[ , purrr::map_lgl(x, is.numeric)]
Less codey, less reflecting R's particular quirks, and more straightforward, and robust to use on database-back-ended tibbles:
dplyr::select_if(x, is.numeric)
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How to redirect both stdout and stderr to a file [duplicate]
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&> now works as expected on OS X 10.11.1 (seems to be bash 3.2), just for the record.
– LiberalArtist
Nov 28 '15 at 20:32
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How to trigger event in JavaScript?
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This answer is more actual now. One thing to add: if there should be a know-typed event (like TransitionEvent, ClipboardEvent, etc) the appropriate constructor could be called.
– Kiril
Jul 1 '14 at 13:04
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How can I confirm a database is Oracle & what version it is using SQL?
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@Prokhozhii - We now use 19 so i can no longer confirm but I would appreciate it if you could provide additional explanation as select version from v$instance definitely works in Oracle 11 . See answer
Add single element to array in numpy
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When appending only once or once every now and again, using np.append on your array should be fine. The drawback of this approach is that memory is allocated for a completely new array every time it is called. When growing an array for a significant amount of samp...
Using gradle to find dependency tree
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just a note: compile has been deprecated, people should now move to implementation
– reinaldomoreira
Jun 14 '17 at 14:44
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Counting array elements in Python [duplicate]
...ay? for example, when I'm looping that array, i get some index and how to know how much index is in?
– isnaini barochatun
May 9 at 13:06
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Suppress or Customize Intro Message in Fish Shell
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I think this worked once, but it doesn't anymore; now it seems you need to set the variable to an empty string.
– mjs
Jun 13 '17 at 7:34
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linq query to return distinct field values from a list of objects
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Now I can see there is an overload of Distinct in LINQ which take an IEqualityComparer as parameter and return a list of distinct objects depending upon the implementation of methods in IEqualityComparer
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