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What's the difference between `1L` and `1`?
I often seen the symbol 1L (or 2L , 3L , etc) appear in R code. Whats the difference between 1L and 1 ? 1==1L evaluates to TRUE . Why is 1L used in R code?
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数据挖掘——分词入门 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...宇宙(右)。早期宇宙中星系互连关系，和大脑神经元相互连接，几乎无法分辨两张图之间的不同，大脑细胞与整个宇宙拥有一样的结构。
宇宙芸芸众生都是相通的，大脑也许就是一个小宇宙，在这个小宇宙又有很多星球、住着...
Able to push to all git remotes with the one command?
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Extract elements of list at odd positions
So I want to create a list which is a sublist of some existing list.
5 Answers
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Can you set a border opacity in CSS?
... { border: 1px solid rgba(255, 0, 0, .5); }
The results were,
Value Error : border Too many values or values are not recognized :
1px solid rgba(255,0,0,0.5 )
Unfortunate that the alpha value (the letter "a" at the end of "rgb") is not accepted by W3C as part of the border color values as...
Find and replace with sed in directory and sub directories
... For Mac OS, this answers stackoverflow.com/questions/19242275/… the RE error: illegal byte sequence
– kakoma
Aug 14 '17 at 21:27
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Emulate ggplot2 default color palette
...e 0 == 360
– hadley
Nov 20 '11 at 6:05
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How to clear APC cache entries?
...rsion, calls are made to the Symfony form of copy and unlink, which handle errors. You may want to add checks that they succeed.
copy($apcPaths['data'], $apcPaths['web']); //'data' is a non web accessable directory
$url = 'http://localhost/apc_clear.php'; //use domain name as necessary
$result = j...
How can I use grep to show just filenames on Linux?
How can I use grep to show just file-names (no in-line matches) on Linux?
4 Answers
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