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Standardize data columns in R
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EDIT 3 (2020): Thanks to @mj_whales: the old solution is deprecated and now we need to use mutate_at.
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M_PI works with math.h but not with cmath in Visual Studio
...is specifically designed so that you can include it again with that define now changed to add M_PI etc. This is NOT the case with cmath. So you need to make sure you #define _USE_MATH_DEFINES before you include anything else. Hope that clears it up for you :)
Failing that just include math.h you a...
Displaying better error message than “No JSON object could be decoded”
...ew error message format. I don’t have time to track exact releases right now however.
– Martijn Pieters♦
Mar 14 at 0:29
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Mongoose query where value is not null
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the mongodb docs about it are here (now): docs.mongodb.org/manual/reference/operator/query The up-to-date doc about it, is here: mongoosejs.com/docs/api.html#query_Query-ne
– zeropaper
Jul 20 '14 at 7:52
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Regular expression to match URLs in Java
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The best way to do it now is:
android.util.Patterns.WEB_URL.matcher(linkUrl).matches();
EDIT: Code of Patterns from https://github.com/android/platform_frameworks_base/blob/master/core/java/android/util/Patterns.java :
/*
* Copyright (C) 2007...
Saving interactive Matplotlib figures
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pickle now works on MPL figures, so this can be done and appears to work reasonable well - almost like a Matlab ".fig" figure file. See my answer below (for now?) for an example of how to do it.
– Demis
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How do you rename a MongoDB database?
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This is great! I already had a mongodump created. Didnt know you can restore it with a different name. Thanks!
– Dushyant Bangal
Mar 31 '17 at 13:29
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Positioning MKMapView to show multiple annotations at once
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The link posted by Jim is now dead, but i was able to find the code (which I had bookmarked somewhere). Hope this helps.
- (void)zoomToFitMapAnnotations:(MKMapView *)mapView {
if ([mapView.annotations count] == 0) return;
CLLocationCoordin...
Auto-center map with multiple markers in Google Maps API v3
...s[i][0]);
infowindow.open(map, marker);
}
})(marker, i));
}
//now fit the map to the newly inclusive bounds
map.fitBounds(bounds);
//(optional) restore the zoom level after the map is done scaling
var listener = google.maps.event.addListener(map, "idle", function () {
map.setZoom(3...
Partial Commits with Subversion
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Tortoise SVN 1.8 now supports this with it's "Restore after commit" feature. This allow you to make edits to a file, with all of the edits being undone after the commit
Per the documentation:
To commit only the parts of the file that rel...