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pandas three-way joining multiple dataframes on columns
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Doesn't this mean that we have n-1 calls to the merge function? I guess in this case where the number of dataframes is small it doesn't matter, but I wonder if there's a more scalable solution.
– eapolin...
How to merge the current branch into another branch
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Submodules! Not only does this solve the problem of the question asked, but it also solves the problem of switching branches when having just a submodule. Great tip!
– eddiemoya
Jul 13 '12 at 22:40
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How to iterate over values of an Enum having flags?
...=> (Items)Enum.Parse(typeof(Items), v)); // Boo
I adapted what Enum does internally to generate the string to instead return the flags. You can look at the code in reflector and should be more or less equivalent. Works well for general use cases where there are values which contain multiple...
Using generic std::function objects with member functions in one class
...gument.
Because your std::function signature specifies that your function doesn't take any arguments (<void(void)>), you must bind the first (and the only) argument.
std::function<void(void)> f = std::bind(&Foo::doSomething, this);
If you want to bind a function with parameters, ...
In Objective-C, what is the equivalent of Java's “instanceof” keyword?
...lasses. Both cases are quite legit and both are easily broken if your code does explicit class checks. Switching behaviour on class is poor OO design, tightly coupled and hard to extend. I am not saying there is no legit use case for class checks, but you should think twice before doing it.
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What is a typedef enum in Objective-C?
... use this set you just have to use the tag. But don't forget that this tag does not replace the enum word but just the set of enumerators. Then take care to use enum as usual. Like this:
// Here the first use of my enum
enum sizes { xs,s,m,l,xl,xxl,xxxl,xxxxl } myGrandMotherDressSize;
// here the ...
Swift compiler error: “non-modular header inside framework module”
...DKs/iPhoneOS.sdk/usr/include/libxml2/libxml/xpath.h"
export *
}
All it does is that it wrap ups the header and any other headers it references inside swift module, so that swift will then be able to generate the swift bindings for these C interfaces.
2. Then in your xcode project directory cr...
Are static fields inherited?
... somewhere that assigns a value (not necessarily zero). Otherwise the code does not fulfill the one-definition-rule and won't compile.
– Damon
Jan 25 '12 at 13:15
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MongoDB inserts float when trying to insert integer
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Actually that is not true. While JS does not see a difference, as soon as you connect to mongo from another language (e.g. java) you will very much feel the difference.
– Omri Spector
Jan 13 '13 at 7:50
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Install NPM into home directory with distribution nodejs package (Ubuntu)
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Because python does already a great job virtualenv, I use nodeenv. Compared to nvm, you can create multiple environments for the same node version (e.g. two environments for node 0.10 but with different sets of packages).
ENVNAME=dev1
# ...