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Scatterplot with too many points
...is is (and probably more appropriate for the number of points you have) is hexagonal binning:
ggplot(df,aes(x=x,y=y)) + stat_binhex()
And there is also regular old rectangular binning (image omitted), which is more like your traditional heatmap:
ggplot(df,aes(x=x,y=y)) + geom_bin2d()
...
Adding HTML entities using CSS content
...ACE character in Unicode (or UCS-2; see the HTML 4.01 Specification). The hexadecimal representation of that code point is U+00A0 (160 = 10 × 161 + 0 × 160). You will find that in the Unicode Code Charts and Character Database.
In CSS you need to use a Unicode escape sequence for such characters...
Sublime Text 3能用支持的插件推荐 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...颜色代码。
插件下载：https://github.com/weslly/ColorPicker
Hex-to-HSL-Color Hex颜色模式转HSL颜色模式
在用CSS3的一些属性时会用到HSL颜色模式，用软件转来转去确实麻烦，用Hex-to-HSL-Color这个插件便可轻松解决，鼠标选中一个或多个十...
Xcode 4.2 debug doesn't symbolicate stack call
...y to go.
When app crashes, and you get your raw first throw call stack (in hex numbers), type into Xcode console info line *hex (don't forget star and 0x hex specifier), for example:
(gdb) info line *0x2658
Line 15 of "path/to/file/main.m" starts at address 0x25f2 <main+50>
and ends at 0x267e...
基于PECL OAuth打造微博应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...潮一点，用了一些PHP5.3以上版本才有的特性，可以改写成低版本。
如果使用CURL方式发送请求的话，最好发送一个空的Expect头，否则如果POST数据大于1K，CURL会自作主张发送Expect:100-continue头，对多数Web服务器来说这没问题，但低...
How to use unicode characters in Windows command line?
...yboard layout. For best results, I recommend my layouts.
For input: allow HEX input of Unicode.
One more gotcha with “Pasting” into a console application (very technical):
HEX input delivers a character on KeyUp of Alt; all the other ways to deliver a character happen on KeyDown; so many app...
What is the 
 character?
...
That would be an HTML Encoded Line Feed character (using the hexadecimal value).
The decimal value would be &#10;
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Set background color of WPF Textbox in C# code
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If we want to set a hex value to the color attribute , how it can be done??
– Sauron
Mar 4 '10 at 11:40
11
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how to convert binary string to decimal?
... //1010
alert("Octal " + num.toString(8)); //12
alert("Hex " + num.toString(16)); //a
alert("Binary to Decimal "+ parseInt("1010", 2)); //10
alert("Octal to Decimal " + parseInt("12", 8)); //10
alert("Hex to Decimal " + parseInt("a", 16)); //...
PHP random string generator
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This creates a 20 character long hexadecimal string:
$string = bin2hex(openssl_random_pseudo_bytes(10)); // 20 chars
In PHP 7 (random_bytes()):
$string = base64_encode(random_bytes(10)); // ~14 characters, includes /=+
// or
$string = substr(str_replace(...