大约有 8,100 项符合查询结果(耗时:0.0274秒) [XML]

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How to make graphics with transparent background in R using ggplot2?

I need to output ggplot2 graphics from R to PNG files with transparent background. Everything is ok with basic R graphics, but no transparency with ggplot2: ...
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ATL正则表达式库使用 - C/C++ - 清泛网 - 专注C/C++及内核技术

ATL正则表达式库使用ATL中,由于ATL Server的需要,需要对Client发送过来的地址、命令等复杂文字字段信息解码,而正则表达式是公认的最强大的文字解析工具,所...ATL中,由于ATL Server的需要,需要对Client发送过来的地址、命令等...
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Streaming Audio from A URL in Android using MediaPlayer?

I've been trying to stream mp3's over http using Android's built in MediaPlayer class. The documentation would suggest to me that this should be as easy as : ...
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rotating axis labels in R

In R, how do I make a (bar)plot's y axis labels parallel to the X axis instead of parallel to the Y axis? 5 Answers ...
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In Bash, how to add “Are you sure [Y/n]” to any command or alias?

In this particular case, I'd like to add a confirm in Bash for 17 Answers 17 ...
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Force SSL/https using .htaccess and mod_rewrite

How can I force to SSL/https using .htaccess and mod_rewrite page specific in PHP. 9 Answers ...
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Apply a function to every row of a matrix or a data frame

Suppose I have a n by 2 matrix and a function that takes a 2-vector as one of its arguments. I would like to apply the function to each row of the matrix and get a n-vector. How to do this in R? ...
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How do I activate a virtualenv inside PyCharm's terminal?

I've set up PyCharm, created my virtualenv (either through the virtual env command, or directly in PyCharm) and activated that environment as my Interpreter. Everything is working just fine. ...
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Can every recursion be converted into iteration?

A reddit thread brought up an apparently interesting question: 17 Answers 17 ...
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.gitignore is ignored by Git

My .gitignore file seems to be being ignored by Git - could the .gitignore file be corrupt? Which file format, locale or culture does Git expect? ...