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pandas: filter rows of DataFrame with operator chaining
...n be accomplished with operator chaining ( groupby , aggregate , apply , etc), but the only way I've found to filter rows is via normal bracket indexing
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What does int argc, char *argv[] mean?
...issisble, though eccentric, to use: char *args[] = { "cat", "/dev/null", "/etc/passwd", 0 }; execv("/bin/ls", args);. On many systems, the value seen by the program as argv[0] will be cat, even though the executable is /bin/ls.
– Jonathan Leffler
Feb 5 '16 at ...
How do I add a class to a given element?
... in cleverer ways to check pre-existence, and check for space requirements etc..
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Is there a working C++ refactoring tool? [closed]
...tract editing operations rather than lines with simple insert and delete), etc.
What it is not (presently) is an interactive refactoring tool. We believe that to do most refactorings well, you need deep control and data fow analyses. DMS has generic machinery to support this, and that machinery ...
How to get Vim to highlight non-ascii characters?
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removed termbg but you could add ctermfg, guifg, etc to also control the foreground.
– fatal_error
Nov 15 '17 at 0:25
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sql primary key and index
...v is constrained overhead for index fragmentation, imperfect tree balance, etc.. Thus 2 billion rows would be log base 2 of 2,000,000,000 (about 31 seeks) times, say, 2 or 3 or even 10. 40M inserts per day is about 462/sec, ~100 IO's per insert... Ahh... Oh. I see. And this was before widespread SSD...
Refresh image with a new one at the same url
...d what images there are on them, as well as how/if images are dimensioned, etc!!! #####
function imgReloadRestore(src,blankList,imgDim,loadError);
{
// ##### Everything here is provisional on the way the pages are designed, and what images they contain; what follows is for example purposes only!
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cocoapods - 'pod install' takes forever
... a git clone operation that's taking too long because of your slow network etc)
to have an even better idea of why it seems to be stuck (running verbose can get you something like this
-> Installing Typhoon (2.2.1)
> GitHub download
> Creating cache git repo (~/Library/Caches/CocoaPods/...
Event on a disabled input
... element handles mouse events, why not a disabled element (eg. mouseenter, etc.)
– Augustin Riedinger
Jul 8 '15 at 13:03
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UILabel is not auto-shrinking text to fit label size
... size, but the text in my UILabel stays the same, the same font size and etc. I need the font to get smaller, for the whole text to fit the UILabel . So the question is how to make the text to fit my label with autoshrinking or something like that?
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