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See what process is using a file in Mac OS X
...s it's in use by Preview but Preview doesn't seem to be running (eg when I command-tab through the running apps) but Activity Monitor does show it to be running. Stupid Preview.
– Dave Sag
Aug 15 '12 at 1:27
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Convert data.frame column format from character to factor
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Hi welcome to the world of R.
mtcars #look at this built in data set
str(mtcars) #allows you to see the classes of the variables (all numeric)
#one approach it to index with the $ sign and the as.factor function
mtcars$am <- ...
Get context of test project in Android junit test case
....getInstrumentation().targetContext
Full running example: https://github.com/fada21/AndroidTestContextExample
Look here: What's the difference between getTargetContext() and getContext (on InstrumentationRegistry)?
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Good ways to manage a changelog using git?
...Another useful tag is --graph, which visually shows you which branches the commits are on.
– Eruant
Jul 21 '14 at 16:39
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Why can't I use the 'await' operator within the body of a lock statement?
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I assume this is either difficult or impossible for the compiler team to implement for some reason.
No, it is not at all difficult or impossible to implement -- the fact that you implemented it yourself is a testament to that fact. Rather, it is an incredibly bad idea and so we ...
Golang: How to pad a number with zeros when printing?
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How do I delete a fixed number of rows with sorting in PostgreSQL?
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community wiki
mu is too short
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How to read and write INI file with Python3?
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git replacing LF with CRLF
...F" says that you (having autocrlf=true) will lose your unix-style LF after commit-checkout cycle (it will be replaced by windows-style CRLF). Git doesn't expect you to use unix-style LF under windows.
The warning "CRLF will be replaced by LF" says that you (having autocrlf=input) will lose your wind...
Updating a local repository with changes from a GitHub repository
...hat remote repository has since had changes made to it. What's the correct command to update my local copy with the latest changes?
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