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Getting LaTeX into R Plots
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You can generate tikz code from R:
http://r-forge.r-project.org/projects/tikzdevice/
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jQuery find events handlers registered with an object
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$.each(event, function(j, h) {
// h.handler is the function being called
});
});
Here's an example you can play with:
$(function() {
$("#el").click(function(){ alert("click"); });
$("#el").mouseover(function(){ alert("mouseover"); });
$.each($._data($("#el")[0], "events")...
Threading pool similar to the multiprocessing Pool?
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I just found out that there actually is a thread-based Pool interface in the multiprocessing module, however it is hidden somewhat and not properly documented.
It can be imported via
from multiprocessing.pool import ThreadPool
It is implemented using a...
How do I check if a string is a number (float)?
...r.
I'm not sure that anything much could be faster than the above. It calls the function and returns. Try/Catch doesn't introduce much overhead because the most common exception is caught without an extensive search of stack frames.
The issue is that any numeric conversion function has two kin...
OS detecting makefile
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The uname command (http://developer.apple.com/documentation/Darwin/Reference/ManPages/man1/uname.1.html) with no parameters should tell you the operating system name. I'd use that, then make conditionals based on the return value.
Example
UN...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
... gcc-4.8 1.53s 1.52s -Os
In some cases you can alleviate the effect of disadvantageous optimizations by asking gcc to optimize for your particular processor (using options -mtune=native or -march=native):
Processor Compiler Time (-O2 -mtune=native) Time (-Os...
importing pyspark in python shell
...answered, so I thought I'd re-ask it here, as I have the same issue. (See http://geekple.com/blogs/feeds/Xgzu7/posts/351703064084736)
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How can I create a link to a local file on a locally-run web page?
...s of many browsers (e.g. Firefox and Chrome) will refuse to cross from the http protocol to the file protocol to prevent malicious behaviour. You'll need to open your webpage locally using the file protocol if you want to do this stuff at all.
Why does it get stuck without file:///?
The first part...
Nginx缓存解决方案：SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术
...hed:new()
if not memc then
ngx.log(ngx.ERR, err)
ngx.exit(ngx.HTTP_SERVICE_UNAVAILABLE)
end
if timeout then
memc:set_timeout(timeout)
end
local ok, err = memc:connect(host, port)
if not ok then
ngx.log(ngx.ERR, err)
ngx.exit(ngx.HTTP_SERVICE_UNAVAILABLE)
end
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Check whether an array is empty [duplicate]
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array with zero elements converts to false
http://php.net/manual/en/language.types.boolean.php
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