大约有 44,500 项符合查询结果(耗时:0.0582秒) [XML]
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.
...
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...
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...
Apple Mach-O Linker Error when compiling for device
...
1
2
3
Next
216
...
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...
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
...
How to create a zip archive with PowerShell?
...
25 Answers
25
Active
...
Move the most recent commit(s) to a new branch with Git
...
6726
+50
Moving t...
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...
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
...