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What is the difference between join and merge in Pandas?

...1.join(df2) instead. Some notes on these issues from the documentation at http://pandas.pydata.org/pandas-docs/stable/merging.html#database-style-dataframe-joining-merging: merge is a function in the pandas namespace, and it is also available as a DataFrame instance method, with the calling D...
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Check if an array contains any element of another array in JavaScript

... If you're not opposed to using a libray, http://underscorejs.org/ has an intersection method, which can simplify this: var _ = require('underscore'); var target = [ 'apple', 'orange', 'banana']; var fruit2 = [ 'apple', 'orange', 'mango']; var fruit3 = [ 'mango', '...
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What's the difference between using CGFloat and float?

...Double #endif *Specifically, longs and pointers, hence the LP. See also: http://www.unix.org/version2/whatsnew/lp64_wp.html share | improve this answer | follow ...
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java.net.URLEncoder.encode(String) is deprecated, what should I use instead?

... reference for the other responses, instead of using "UTF-8" you can use: HTTP.UTF_8 which is included since Java 4 as part of the org.apache.http.protocol library, which is included also since Android API 1. share ...
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What's the difference between dynamic (C# 4) and var?

... to explain difference between dynamic and var. dynamic d1; d1 = 1; d1 = "http://mycodelogic.com"; This will work. compiler can re-create the type of dynamic variable. first it create type as integer and after that compiler will recreate type as string but in case of var var v1; // Compiler wi...
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In a django model custom save() method, how should you identify a new object?

...l which sends a "created" kwargs, if true, your object has been inserted. http://docs.djangoproject.com/en/stable/ref/signals/#post-save share | improve this answer | follow...
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How to run a program without an operating system?

...is article, and the whole wiki.osdev.org will anwer most of your questions http://wiki.osdev.org/Introduction Also, if you don't want to experiment directly on hardware, you can run it as a virtual machine using hypervisors like qemu. See how to run "hello world" directly on virtualized ARM hardwar...
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Linq to Sql: Multiple left outer joins

...ave access to VisualStudio (I'm on my Mac), but using the information from http://bhaidar.net/cs/archive/2007/08/01/left-outer-join-in-linq-to-sql.aspx it looks like you may be able to do something like this: var query = from o in dc.Orders join v in dc.Vendors on o.VendorId equals v.Id...
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How to uninstall the “Microsoft Advertising SDK” Visual Studio extension?

...er extensions I wanted to remove as well (The windows Phone Tools and F#) https://stackoverflow.com/a/28050106/376487 Direct link to the uninstaller http://totaluninstaller.codeplex.com/ You can configure it to remove more or less depending on your needs. Edit: @Max actually posted a forked vers...
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Correct use of Multimapping in Dapper

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