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What does .SD stand for in data.table in R
....SD]
# playerID yearID teamID W L G ERA
# 1: bechtge01 1871 PH1 1 2 3 7.96
# 2: brainas01 1871 WS3 12 15 30 4.50
# 3: fergubo01 1871 NY2 0 0 1 27.00
# 4: fishech01 1871 RC1 4 16 24 4.35
# 5: fleetfr01 1871 NY2 0 1 1 10.00
# --...
Base64 length calculation?
...t 1.
– Maarten Bodewes
Jun 19 at 13:46
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show 2 more comments
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How to serialize an object into a string
...o write it down into a String you can encode the bytes using java.util.Base64.
Still you should use CLOB as data type because you don't know how long the serialized data is going to be.
Here is a sample of how to use it.
import java.util.*;
import java.io.*;
/**
* Usage sample serializing Som...
How do I print a double value with full precision using cout?
... value anyways. I think g++ supports this.)
union {
double d;
uint64_t u64;
} x;
x.d = 1.1;
std::cout << std::hex << x.u64;
This will give you the 100% accurate precision of the double... and be utterly unreadable because humans can't read IEEE double format ! Wikipedia has a ...
What's the difference between Cache-Control: max-age=0 and no-cache?
...
Verified in Firefox 45.0 which, like Chrome 49.0.2623.87 m, also sends a "Pragma: no-cache" when Shift+Refreshing.
– Cees Timmerman
Mar 14 '16 at 17:05
ad...
Generate a random alphanumeric string in Cocoa
...John Riselvato
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2
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...ly a problem.
– jalf
Jul 8 '11 at 7:46
6
The table has 32 entries, and every value is < 255 (1...
How to implement Enums in Ruby?
...
Andrew Marshall
87.3k1818 gold badges202202 silver badges204204 bronze badges
answered Sep 16 '08 at 19:32
mlibbymlib...
go to character in vim
...\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7...
When should I use the Visitor Design Pattern? [closed]
...ed Apr 29 '19 at 13:34
alexlomba87
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answered Nov 1 '08 at 0:11
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