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Read an Excel file directly from a R script
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Ben BolkerBen Bolker
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6
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CSS filter: make color image with transparency white
...B/nRNo739/YnX9azKUXYCg9CtlvdAUyywuEB1p4gh9AzbPZc0mF8Z+sINgn0MIwiVgKcAG6rGlT86AMdqw2n8ppR63o+mveQXCFAxzX2BWD0P6pcT+g3uNlmEDV3JX4iOh1xICdWU2gGXOMXN5HfRhK4IoPxlfXQfmKf+Ajh1I+MEeHMcKzqvoxoZsHsoOXgP+fEkxbw1e2JhB0h2q9tc4OL/fAVdsdd3jnyhklmRo8qGBQXchIvMMKPW7Pt85/SM66CNmDw1mh75cHu6JWZFZxNLNSJTPIM5PuJquKEt3o6...
Why do we need virtual functions in C++?
... );
cout << sum.value() << endl;
}
Here the output is 6.86 as it should be, since the virtual method is called virtually. This is also called dynamic binding of the calls. A little check is performed, finding the actual dynamic type of object, and the relevant method implementatio...
Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?
...some impact: no hardware barrier is needed on many architectures (such as x86, specifically those that don't allow reads to pass reads), but some optimization and reordering may not occur at compile time - but this effect is generally small. In exchange, you actually get more than what you asked for...
Remove accents/diacritics in a string in JavaScript
...u01A0\u1EDC\u1EDA\u1EE0\u1EDE\u1EE2\u1ECC\u1ED8\u01EA\u01EC\u00D8\u01FE\u0186\u019F\uA74A\uA74C'},
{'base':'OI','letters':'\u01A2'},
{'base':'OO','letters':'\uA74E'},
{'base':'OU','letters':'\u0222'},
{'base':'OE','letters':'\u008C\u0152'},
{'base':'oe','...
When do I need to use Begin / End Blocks and the Go keyword in SQL Server?
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HLGEMHLGEM
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How to find Unused Amazon EC2 Security groups
...the database.
-- MySQL dump 10.13 Distrib 5.5.41, for debian-linux-gnu (x86_64)
--
-- Host: localhost Database: aws_security_groups
-- ------------------------------------------------------
-- Server version 5.5.40-log
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!4010...
In the shell, what does “ 2>&1 ” mean?
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86
But how would you redirect stderr to a file named '&1'?
– Martín Fixman
Nov 4 '14 at 17:07
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What is the exact meaning of Git Bash?
...t for windows 1.9.5 is an old one:
GNU bash, version 3.1.20(4)-release (i686-pc-msys)
Copyright (C) 2005 Free Software Foundation, Inc.
But with the phasing out of msysgit (Q4 2015) and the new Git For Windows (Q2 2015), you now have Git for Windows 2.3.5.
It has a much more recent bash, based on...
What's the difference between the atomic and nonatomic attributes?
...s 44 times slower for the three-byte struct (2.2 GHz Core i7 Quad Core, x86_64). The three-byte struct is an example of a very slow property.
Interesting side note: User-defined accessors of the three-byte struct were 52 times faster than the synthesized atomic accessors; or 84% the speed of synt...