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What is the most efficient way to loop through dataframes with pandas? [duplicate]
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I agree that this is the best way and that is what I usually do for simple operations. However, in this case, this is not possible, since the resulting operations can get very complex. Specifically I am trying to backtest trading strategies. E.g. if the price is at a ne...
How to do a GitHub pull request
... 'Using pull requests' page",
see also "Forking vs. Branching in GitHub", "What is the difference between origin and upstream in GitHub")
Couple tips on pull-requests:
Assuming that you have first forked a repo, here is what you should do in that fork that you own:
create a branch: isolate your ...
When is the @JsonProperty property used and what is it used for?
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well for what its worth now... JsonProperty is ALSO used to specify getter and setter methods for the variable apart from usual serialization and deserialization. For example suppose you have a payload like this:
{
"check": true
}
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Swift: Convert enum value to String?
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@denis631 what do you mean? The raw type of an enum can be anything. An enum can even conform to OptionSet if you really want to. And the original question is about Strings anyways.
– DevAndArtist
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When should we use mutex and when should we use semaphore
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Here is how I remember when to use what -
Semaphore:
Use a semaphore when you (thread) want to sleep till some other thread tells you to wake up. Semaphore 'down' happens in one thread (producer) and semaphore 'up' (for same semaphore) happens in another thr...
Naming convention - underscore in C++ and C# variables
It's common to see a _var variable name in a class field. What does the underscore mean? Is there a reference for all these special naming conventions?
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What are the respective advantages/limitations of Amazon RDS vs. EC2 with MySQL? [closed]
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Good answer. This is EXACTLY what I want: aws.typepad.com/aws/2010/10/… - Thanks for leading me in the right direction
– Macgyver
Jan 26 '11 at 17:07
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What tools are there for functional programming in C?
...ken that extreme view of functional programming to the point of absurdity. What good is a pure specification of, e.g., map, if one does not have the facilities to pass a function to it?
– Jonathan Leonard
May 18 '14 at 4:34
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What is a “context bound” in Scala?
One of the new features of Scala 2.8 are context bounds. What is a context bound and where is it useful?
4 Answers
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What does MissingManifestResourceException mean and how to fix it?
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What if you don't have a resources.resx file?
– ashes999
Sep 29 '11 at 20:54
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