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How to access pandas groupby dataframe by key
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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What are the differences between poll and select?
...t poll() not being available on BSD still apply? MacOS X (which is partly based on BSD) has poll(), and the POSIX standard (POSIX 2008) requires it.
– Jonathan Leffler
Mar 10 '10 at 20:49
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iTerm 2: How to set keyboard shortcuts to jump to beginning/end of line?
... profile to do this? Then I created GabLeRoux/iterm2-macos-dynamic-profile based on these instructions. It works flawlessly, thanks ????
– GabLeRoux
Aug 1 '18 at 19:07
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Why does changing 0.1f to 0 slow down performance by 10x?
... depending on whether 0 or 0.1 is used.
Here's the test code compiled on x64:
int main() {
double start = omp_get_wtime();
const float x[16]={1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0,2.1,2.2,2.3,2.4,2.5,2.6};
const float z[16]={1.123,1.234,1.345,156.467,1.578,1.689,1.790,1.812,1.923,2...
MAC addresses in JavaScript
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to safely open/close files in python 2.4
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How should the ViewModel close the form?
...:
protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
MainWindow window = new MainWindow();
var viewModel = new MainWindowViewModel();
viewModel.RequestClose += window.Close;
window.DataContext = viewModel;
window.Show...
Declaring variables inside or outside of a loop
...performance requirements instead of having to go all over your entire code base and tweak and hack things in order to squeeze clock cycles here and there.
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How to use SCNetworkReachability in Swift
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Swift 3, IPv4, IPv6
Based on the Martin R's answer:
import SystemConfiguration
func isConnectedToNetwork() -> Bool {
guard let flags = getFlags() else { return false }
let isReachable = flags.contains(.reachable)
let needsConnec...
redirect COPY of stdout to log file from within bash script itself
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I made some little "sourceable" scripts based on this. Can use them in a script like . log or . log foo.log: sam.nipl.net/sh/log sam.nipl.net/sh/log-a
– Sam Watkins
Jul 16 '15 at 3:22
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