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Cartesian product of x and y array points into single array of 2D points
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>>> numpy.transpose([numpy.tile(x, len(y)), numpy.repeat(y, len(x))])
array([[1, 4],
[2, 4],
[3, 4],
[1, 5],
[2, 5],
[3, 5]])
See Using numpy to build an array of all combinations of two arrays for a gene...
Android, canvas: How do I clear (delete contents of) a canvas (= bitmaps), living in a surfaceView?
...re is no such method that just update a "part of the screen" since Android OS is redrawing every pixel when updating the screen. But, when you're not clearing old drawings on your Canvas, the old drawings are still on the surface and that is probably one way to "update just a part" of the screen.
S...
How to remove files that are listed in the .gitignore but still on the repository?
I have some files in my repository that should be ignored, i added them to the .gitignore but, of course, they are not removed from my repository.
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Finding the Eclipse Version Number
I have posted how to find it in Eclipse Gallileo, but if anyone has information on older versions feel free to post it below.
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Maven error: Could not find or load main class org.codehaus.plexus.classworlds.launcher.Launcher
...ariable name from M2_HOME to M3_HOME did the trick. I am on a Mac running OSX 10.9 with JDK 1.7. Hope this helps.
Note: Please delete M2_HOME, if already set. Eg: unset M2_HOME
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Media Player called in state 0, error (-38,0)
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I got this error when I was trying to get the current position (MediaPlayer.getCurrentPosition()) of media player when it wasn't in the prepared stated. I got around this by Keeping track of its state and only calling the getCurrentPosition() method after onPreparedListener is ca...
Is there a way to make R beep/play a sound at the end of a script?
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@Mulone: works for me, MacOSX 10.11.1, R 3.2.2; you hear the faint "poump" sound.
– Benjamin
Nov 12 '15 at 0:32
6
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Firebug-like debugger for Google Chrome
...tool already built into Chrome. Just right click anywhere on a page and choose "Inspect element" from the menu. Chrome has a graphical tool for debugging (like in Firebug), so you can debug JavaScript. It also does CSS inspection well and can even change CSS rendering on the fly.
For more informati...
Sort NSArray of date strings or objects
...dited Apr 25 '13 at 7:17
Paras Joshi
19.8k1111 gold badges5353 silver badges6969 bronze badges
answered Oct 12 '10 at 9:25
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How to get rid of Git submodules untracked status?
...t, the actual way to have a clean status would be to go into each one of those submodules and:
add and commit the untracked contents,
or reference the untracked contents in a .gitignore specific to each module.
or you can add the same ignored content to the submodule's .git/info/exclude, as peci...