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How to take column-slices of dataframe in pandas

I load some machine learning data from a CSV file. The first 2 columns are observations and the remaining columns are features. ...
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What is the >>>= operator in C?

...ply 0. Meanwhile, 0X.1P1 is a hexadecimal floating point literal equal to 2/16 = 0.125. In any case, being non-zero, it's also true as a boolean, so negating it twice with !! again produces 1. Thus, the whole thing simplifies down to: while( a[0] >>= a[1] ) The operator >>= is a co...
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range over interface{} which stores a slice

...ta := []string{"one","two","three"} test(data) moredata := []int{1,2,3} test(moredata) } func test(t interface{}) { switch reflect.TypeOf(t).Kind() { case reflect.Slice: s := reflect.ValueOf(t) for i := 0; i < s.Len(); i++ { fmt.Println(s.Index(i...
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Apple Mach-O Linker Error when compiling for device

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Best way to serialize an NSData into a hexadeximal string

... 206 This is a category applied to NSData that I wrote. It returns a hexadecimal NSString represent...
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Referencing system.management.automation.dll in Visual Studio

...on on Nuget System.Management.Automation.dll on NuGet, newer package from 2015, not unlisted as the previous one! Microsoft PowerShell team packages un NuGet Update: package is now owned by PowerShell Team. Huzzah! share ...
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How to create a zip archive with PowerShell?

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Move the most recent commit(s) to a new branch with Git

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Scala: What is a TypeTag and how do I use it?

... List[Foo] => "list of foos" } we will get warnings: <console>:23: warning: non-variable type argument String in type pattern List[String]↩ is unchecked since it is eliminated by erasure case _: List[String] => "list of strings" ^ <console>:24: warnin...
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How to create a file with a given size in Linux?

... answered Sep 26 '08 at 12:53 Ilya KochetovIlya Kochetov 16.5k66 gold badges4141 silver badges5858 bronze badges ...