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How to append multiple values to a list in Python
...; lst.append(4)
>>> lst
[1, 2, 3, 4]
>>> lst.extend([5, 6, 7])
>>> lst.extend((8, 9, 10))
>>> lst
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>>> lst.extend(range(11, 14))
>>> lst
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]
So you can use list.append() t...
Can I initialize a C# attribute with an array or other variable number of arguments?
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edited Dec 1 '16 at 15:56
answered Nov 6 '08 at 20:51
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How to remove specific elements in a numpy array
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306
Use numpy.delete() - returns a new array with sub-arrays along an axis deleted
numpy.delete(a, ...
How to drop columns by name in a data frame
...r the subset function. For example :
R> df <- data.frame(x=1:5, y=2:6, z=3:7, u=4:8)
R> df
x y z u
1 1 2 3 4
2 2 3 4 5
3 3 4 5 6
4 4 5 6 7
5 5 6 7 8
Then you can use the which function and the - operator in column indexation :
R> df[ , -which(names(df) %in% c("z","u"))]
x y
1 1 2...
How do I make the scrollbar on a div only visible when necessary?
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6 Answers
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Compare if two variables reference the same object in python
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Does ARC support dispatch queues?
...nd now for the long answer…
If your deployment target is lower than iOS 6.0 or Mac OS X 10.8
You need to use dispatch_retain and dispatch_release on your queue. ARC does not manage them.
If your deployment target is iOS 6.0 or Mac OS X 10.8 or later
ARC will manage your queue for you. You d...
Split a string on whitespace in Go?
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answered Dec 6 '12 at 6:05
I Hate LazyI Hate Lazy
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Generate random int value from 3 to 6
... random number between 0-9
SELECT ABS(CHECKSUM(NEWID()) % 10)
1 through 6
SELECT ABS(CHECKSUM(NEWID()) % 6) + 1
3 through 6
SELECT ABS(CHECKSUM(NEWID()) % 4) + 3
Dynamic (Based on Eilert Hjelmeseths Comment)
SELECT ABS(CHECKSUM(NEWID()) % (@max - @min + 1)) + @min
Updated based on commen...
Aggregate function in an SQL update query?
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