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How do you test functions and closures for equality?
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answered Sep 5 '14 at 21:15
drewagdrewag
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Hibernate Annotations - Which is better, field or property access?
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Hanno Fietz
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answered Apr 16 '09 at 18:02
Miguel PingMigu...
UICollectionView Set number of columns
...lly good tutorials on UICollectionViews:
http://www.raywenderlich.com/22324/beginning-uicollectionview-in-ios-6-part-12
http://skeuo.com/uicollectionview-custom-layout-tutorial
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How to toggle a value in Python
... use a conditional expression:
>>> A = [1,2,3]
>>> B = [4,5,6]
>>> x = A
>>> x = B if x == A else A
>>> x
[4, 5, 6]
>>> x = B if x == A else A
>>> x
[1, 2, 3]
>>> x = B if x == A else A
>>> x
[4, 5, 6]
Solution using...
Call apply-like function on each row of dataframe with multiple arguments from each row
...y to a subset of the original data.
dat <- data.frame(x=c(1,2), y=c(3,4), z=c(5,6))
apply(dat[,c('x','z')], 1, function(x) sum(x) )
or if your function is just sum use the vectorized version:
rowSums(dat[,c('x','z')])
[1] 6 8
If you want to use testFunc
testFunc <- function(a, b) a +...
Convert String to Calendar Object in Java
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406
Calendar cal = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("EEE MMM dd...
How can I reliably determine the type of a variable that is declared using var at design time?
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Cheeso
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answered May 15 '10 at 16:21
Eric LippertEric Lippert
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What is the difference between CMD and ENTRYPOINT in a Dockerfile?
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1814
Docker has a default entrypoint which is /bin/sh -c but does not have a default command.
When y...
Display current date and time without punctuation
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answered Dec 12 '13 at 18:41
janosjanos
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What is SuppressWarnings (“unchecked”) in Java?
Sometime when looking through code, I see many methods specify an annotation:
11 Answers
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