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Deleting DataFrame row in Pandas based on column value
... 0 70 0.142 9.969
12 2006-01-02 515 0 64 0.135 8.627
13 2005-12-06 542 0 70 0.118 8.246
14 2005-11-29 549 0 70 0.114 7.963
15 2005-11-22 556 0 -1 0.110 -0.110
16 2005-11-01 577 ...
docker error: /var/run/docker.sock: no such file or directory
...e also http://blog.arungupta.me/resolve-dial-unix-docker-sock-error-techtip64
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Remove NA values from a vector
...rrr::map(airquality, function(x) { x[!is.na(x)] }) 66.8 75.9 130.5643 86.2 131.80 541125.5 1e+06 a
purrr::map(airquality, na.omit) 95.7 107.4 185.5108 129.3 190.50 534795.5 1e+06 b
purrr::map(airquality, ~purrr::discard(.x, .p = is.na)) 3391.7 3648...
Use of #pragma in C
... aligned on a 4 byte boundary for 32 bit processors or 8 byte boundary for 64 bit processors will typically be loaded and stored in a single operation. Data that is aligned on smaller boundaries will take multiple operations to load or store. This is slower.
– SmacL
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Mac OS X Terminal: Map option+delete to “backward delete word”
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64
Delete a word going back:
Ctr-w.
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How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?
...alue = 500;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC));
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
[self doSomethingWithPrimitive:primitiveValue];
});
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How to distinguish mouse “click” and “drag”
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I'm running Chrome 56.0.2924.87 (64-bit) and I'm not experiencing the issues @mrjrdnthms is describing.
– jkupczak
Mar 15 '17 at 19:38
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rails + MySQL on OSX: Library not loaded: libmysqlclient.18.dylib
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GiuseppeGiuseppe
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Difference Between Schema / Database in MySQL
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Mike BrantMike Brant
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What are the best Haskell libraries to operationalize a program? [closed]
...ng output flags) has been something I've done in the past.
$ ./A +RTS -s
64,952 bytes allocated in the heap
1 MB total memory in use
%GC time 0.0% (6.1% elapsed)
Productivity 100.0% of total user, 0.0% of total elapsed
You can get this in machine-readable format too:
$ ./A +RTS -t --ma...