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Force R not to use exponential notation (e.g. e+10)?
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This is a bit of a grey area. You need to recall that R will always invoke a print method, and these print methods listen to some options. Including 'scipen' -- a penalty for scientific display. From help(options):
‘scipen’: i...
How do I close an open port from the terminal on the Mac?
...do lsof -i :5955
Kill the process which is currently using the port using its PID
sudo kill -9 PID
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Setting the zoom level for a MKMapView
...hows correctly, the only thing I want to do now is set the zoom level when it loads. Is there a way to do this?
15 Answers
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Fatal error in launcher: Unable to create process using “”C:\Program Files (x86)\Python33\python.exe
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it seems that
python -m pip install XXX
will work anyway (worked for me)
(see link by user474491)
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How does BLAS get such extreme performance?
Out of curiosity I decided to benchmark my own matrix multiplication function versus the BLAS implementation... I was to say the least surprised at the result:
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What generates the “text file busy” message in Unix?
...r is accessing your file. Use lsof to check what other processes are using it. You can use kill command to kill it if needed.
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#ifdef replacement in the Swift language
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Yes you can do it.
In Swift you can still use the "#if/#else/#endif" preprocessor macros (although more constrained), as per Apple docs. Here's an example:
#if DEBUG
let a = 2
#else
let a = 3
#endif
Now, you must set the "DEBUG"...
HashSet vs. List performance
It's clear that a search performance of the generic HashSet<T> class is higher than of the generic List<T> class. Just compare the hash-based key with the linear approach in the List<T> class.
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How can you strip non-ASCII characters from a string? (in C#)
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edited Aug 18 '16 at 3:51
Slai
19.1k44 gold badges3434 silver badges4242 bronze badges
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Zoom in on a point (using scale and translate)
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The better solution is to simply move the position of the viewport based on the change in the zoom. The zoom point is simply the point in the old zoom and the new zoom that you want to remain the same. Which is to say the viewport pre-zoomed and the viewport post-zoomed...