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Convert number strings with commas in pandas DataFrame to float
...have a DataFrame that contains numbers as strings with commas for the thousands marker. I need to convert them to floats.
3...
pinpointing “conditional jump or move depends on uninitialized value(s)” valgrind message
...ve been getting some mysterious uninitialized values message from valgrind and it's been quite the mystery as of where the bad value originated from.
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jQuery .hasClass() vs .is()
...f determining whether an element is assigned a class, from a performance standpoint?
4 Answers
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Where in an Eclipse workspace is the list of projects stored?
...wered Mar 12 '10 at 1:35
Magne LandMagne Land
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How do you commit code as a different user?
...o add in the commits to Git while preserving the commit's original author (and date).
3 Answers
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Why would I use a templating engine? jsp include and jstl vs tiles, freemarker, velocity, sitemesh
...er sort of logic - no possible option to drop down to using scriptlet tags and doing nasty things in your templates.
Placeholders - do velocity/freemaker give anything more than JSTL? In JSTL you put placeholder, and use the model (placed in request or session scope, by controllers) to fill th...
jQuery: keyPress Backspace won't fire?
...dent on key. You want to use keypress for Enter key, keydown for Backspace and so forth; otherwise you'll find your events in some browsers don't really work as you expect, especially when you want to prevent the default behavior for the key. When you use the wrong one, what will happen is either yo...
Naming conventions for abstract classes
...figuration.ConfigurationValidatorBase , System.Windows.Forms.ButtonBase , and, of course, System.Collections.CollectionBase .
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Generate a random double in a range
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To generate a random value between rangeMin and rangeMax:
Random r = new Random();
double randomValue = rangeMin + (rangeMax - rangeMin) * r.nextDouble();
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symbolic link: find all files that link to this file
...is the only good way:
find -L / -samefile path/to/foo.txt
On the other hand, if you are just trying to find links to any file that happens to be named foo.txt, then something like
find / -lname foo.txt
or
find . -lname \*foo.txt # ignore leading pathname components
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