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What does .SD stand for in data.table in R
...e119', '#0082c8', '#f58231', '#911eb4',
'#46f0f0', '#f032e6', '#d2f53c', '#fabebe', '#008080', '#e6beff',
'#aa6e28', '#fffac8', '#800000', '#aaffc3')
par(oma = c(2, 0, 0, 0))
sapply(models, function(rhs) {
# using ERA ~ . and data = .SD, then varying which
# columns are in...
Why does Java switch on contiguous ints appear to run faster with added cases?
...OfTen@-1 (line 56)
0x000000000287fe2c: cmp edx,0x13
0x000000000287fe2f: jae 0x000000000287fe46
0x000000000287fe31: movsxd r10,edx
0x000000000287fe34: shl r10,0x3
0x000000000287fe38: movabs r8,0x287fd70 ; {section_word}
0x000000000287fe42: jmp QWORD PTR [r8+r10*1] ;*t...
JavaScript + Unicode regexes
...\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u...
What exactly does git's “rebase --preserve-merges” do (and why?)
...01, commit 4c68e7d, commit 9055e40, commit cb5206e, commit a01c2a5, commit 2f6b1d1, commit bf5c057 (25 Apr 2018) by Johannes Schindelin (dscho).
See commit f431d73 (25 Apr 2018) by Stefan Beller (stefanbeller).
See commit 2429335 (25 Apr 2018) by Phillip Wood (phillipwood).
(Merged by Junio C Hamano...
What is the maximum length of a URL in different browsers?
...YU1JDlTOZpjLseY5mEdKqeSD1RZqWjWWoVRYe3yxnPEsl6/KojvaMfbg/Nsp2olUEnTpRyxHGvl2FfLleLjVTQqszEAAG5hJpjVBZr8ZLJlvzqbZ88Ytq7MmLhmuXH6TXH1RYHrjnxY82LH2tnWyfx8ozlKMpaiv6o0gqKmpmkXlODLAI2oARfrv6oXaO0BV6KqneSFm0z3xBiQcIzBuAeUBlsi+VE6TQU7OfBXM2tdjuivUWl6ytXEjLJlsMlWWJj2OwsznCMtwEel0WN9Ph7afo4d+f9ObM1OV+RRPqzpq...
How to detect a Christmas Tree? [closed]
...or<Point> > contours;
Moments m;
Rect boundrect;
Point2f center;
double radius, max_area=0,tmp_area=0;
unsigned int j, k;
int i;
for(i = 1; i < argc; ++i)
{
original = imread(argv[i]);
if(original.empty())
{
cerr <&l...