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Saving grid.arrange() plot to file
... anything but returns a grob g, that you can pass to ggsave(file="whatever.pdf", g).
The reason it works differently than with ggplot objects, where by default the last plot is being saved if not specified, is that ggplot2 invisibly keeps track of the latest plot, and I don't think grid.arrange sho...
boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
...iner,Tag>::type& i = get<Tag>(s);这段代码定义了一个容器索引，从容器s中提取出Tag标签作为索引的序列i（对于有序的容器也可以说是用Tag排序的序列），接下来是typedef typename MultiIndexContainer::value_type value_type;语句定义了容器的元素类...
Find the extension of a filename in Ruby
...t's really basic stuff:
irb(main):002:0> accepted_formats = [".txt", ".pdf"]
=> [".txt", ".pdf"]
irb(main):003:0> File.extname("example.pdf") # get the extension
=> ".pdf"
irb(main):004:0> accepted_formats.include? File.extname("example.pdf")
=> true
irb(main):005:0> accepted_f...
Website screenshots
... outputs it in a ps file (ghostscript), then, convert it in a .jpg, .png, .pdf.. can be little slower with complex pages (and don't support all the CSS).
Else, you can use wkhtmltopdf to output a html page in pdf, jpg, whatever..
Accept CSS2.0, use the webkit (safari's wrapper) to render the page.....
Execute a command line binary with Node.js
...ec:
var exec = require('child_process').exec;
var cmd = 'prince -v builds/pdf/book.html -o builds/pdf/book.pdf';
exec(cmd, function(error, stdout, stderr) {
// command output is in stdout
});
If you need to use handle process I/O with streams, such as when you are expecting large amounts of ou...
Attach a file from MemoryStream to a MailMessage in C#
...tem.Net.Mime.MimeTypeNames like System.Net.Mime.MediaTypeNames.Application.Pdf
Based on Mime Type you need to specify correct extension in FileName for instance "myFile.pdf"
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How to download all files (but not HTML) from a website using wget?
...
To filter for specific file extensions:
wget -A pdf,jpg -m -p -E -k -K -np http://site/path/
Or, if you prefer long option names:
wget --accept pdf,jpg --mirror --page-requisites --adjust-extension --convert-links --backup-converted --no-parent http://site/path/
This ...
Workflow for statistical analysis and report writing
... I press "Go", Sweave dumps out a few score .tex files, and I run a little Python script to pdflatex them all. My predecessor spent ~6 weeks each year on these reports; I spend about 3 days (mostly on cleaning data; escape characters are hazardous).
It's very possible that there are better approac...
在线服务的黑天鹅 - 资讯 - 清泛网 - 专注C/C++及内核技术
...每个团队只参与大系统一个环节时，问题会变得更复杂。从概率的角度，大的系统中小的模块的failure不可避免，容错流程总是存在疏忽的地方。当系统中存在复杂的网状调用，无法完全做到松耦合（理想的松耦合是指一个服务...
Capture HTML Canvas as gif/jpg/png/pdf?
...ible to capture or print what's displayed in an html canvas as an image or pdf?
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