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Invalid argument supplied for foreach()

... Personally I find this to be the most clean - not sure if it's the most efficient, mind! if (is_array($values) || is_object($values)) { foreach ($values as $value) { ... } } The reason for my preference is it...
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Should I use `import os.path` or `import os`?

...ant to use rather than a thing in the os module, so even though it's not really a submodule of a package called os, I import it sort of like it is one and I always do import os.path. This is consistent with how os.path is documented. Incidentally, this sort of structure leads to a lot of Python p...
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How to change legend title in ggplot

...ould work: p <- ggplot(df, aes(x=rating, fill=cond)) + geom_density(alpha=.3) + xlab("NEW RATING TITLE") + ylab("NEW DENSITY TITLE") p <- p + guides(fill=guide_legend(title="New Legend Title")) (or alternatively) p + scale_fill_discrete(name = "New Legen...
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Status bar and navigation bar appear over my view's bounds in iOS 7

... You can achieve this by implementing a new property called edgesForExtendedLayout in iOS7 SDK. Please add the following code to achieve this, if ([self respondsToSelector:@selector(edgesForExtendedLayout)]) self.edgesForExtendedLayout = UIRectEdgeNone; You need to ad...
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Removing a list of characters in string

...unicodes), the absolutely best method is str.translate: >>> chars_to_remove = ['.', '!', '?'] >>> subj = 'A.B!C?' >>> subj.translate(None, ''.join(chars_to_remove)) 'ABC' Otherwise, there are following options to consider: A. Iterate the subject char by char, omit unwa...
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How to profile methods in Scala?

What is a standard way of profiling Scala method calls? 12 Answers 12 ...
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How to handle invalid SSL certificates with Apache HttpClient? [duplicate]

...thority, but a self signed or issued by a private CMS. Don't panic. All you need to do is to add the server certificate to your trusted Java key store if your client is written in Java. You might be wondering how as if you can not access the machine where the server is installed. ...
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C/C++ check if one bit is set in, i.e. int variable

...if you want to hide bit manipulation, you can write a macro: #define CHECK_BIT(var,pos) ((var) & (1<<(pos))) and use it this way to check the nth bit from the right end: CHECK_BIT(temp, n - 1) In C++, you can use std::bitset. ...
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How do I check if I'm running on Windows in Python? [duplicate]

...lue cannot be determined. If that isn't working, maybe try platform.win32_ver and if it doesn't raise an exception, you're on Windows; but I don't know if that's forward compatible to 64-bit, since it has 32 in the name. win32_ver(release='', version='', csd='', ptype='') Get additional ...
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How to convert IPython notebooks to PDF and HTML?

... If you have LaTeX installed you can download as PDF directly from Jupyter notebook with File -> Download as -> PDF via LaTeX (.pdf). Otherwise follow these two steps. For HTML output, you should now use Jupyter in place of IPython and sele...