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Is there an R function for finding the index of an element in a vector?
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The function match works on vectors :
x <- sample(1:10)
x
# [1] 4 5 9 3 8 1 6 10 7 2
match(c(4,8),x)
# [1] 1 5
match only returns the first encounter of a match, as you requested. It returns the position in the second argument of the values in the first argument.
Fo...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
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120
To answer my own question, this functionality has been added to pandas in the meantime. Starting...
用户界面（UI）组件 · App Inventor 2 中文网
...图标显示，需是方形尺寸 png 或 jpeg 图像，最大分辨率 1024 x 1024 像素。
较大的图像可能会导致编译或安装应用程序失败。
构建服务器将为 Android 设备生成标准尺寸的图像。
平台
获取运行应用程序的底层平台的名称...
How to change the default charset of a MySQL table?
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203
If you want to change the table default character set and all character columns to a new chara...
await vs Task.Wait - Deadlock?
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Mario Sannum
10.6k88 gold badges3434 silver badges4545 bronze badges
answered Oct 30 '12 at 14:19
Stephen ClearySte...
How to insert a character in a string at a certain position?
...e String for a better display output (instead of 1234.5 will be 1234.50 ). Therefore, I need a function that will take an int as parameter and return the properly formatted String with a decimal point 2 digits from the end.
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How do I set/unset a cookie with jQuery?
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+50
Update April 2019
jQuery isn't needed for cookie reading/manipulation, so don't use the original answer below.
Go to https://github....
Is there a numpy builtin to reject outliers from a list
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10 Answers
10
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Appending an element to the end of a list in Scala
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400
List(1,2,3) :+ 4
Results in List[Int] = List(1, 2, 3, 4)
Note that this operation has a comp...
Can I convert long to int?
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edited May 13 '09 at 16:36
answered May 13 '09 at 16:17
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