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Refresh a page using PHP
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answered Jan 2 '14 at 7:48
user1847051user1847051
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Left Align Cells in UICollectionView
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170
The other solutions in this thread do not work properly, when the line is composed by only 1 it...
In a javascript array, how do I get the last 5 elements, excluding the first element?
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SLaksSLaks
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How do I auto-reload a Chrome extension I'm developing?
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27 Answers
27
Active
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Changing column names of a data frame
... data.frame(bad=1:3, worse=rnorm(3))
R> X
bad worse
1 1 -2.440467
2 2 1.320113
3 3 -0.306639
R> colnames(X) <- c("good", "better")
R> X
good better
1 1 -2.440467
2 2 1.320113
3 3 -0.306639
You can also subset:
R> colnames(X)[2] <- "superduper"
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Using an ORM or plain SQL? [closed]
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170
ORMs have some nice features. They can handle much of the dog-work of copying database columns ...
When to use reinterpret_cast?
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edited Aug 30 '19 at 8:57
leiyc
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answered Feb 21 '09 at 16:42
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How to extract the decision rules from scikit-learn decision-tree?
...n [[ 5.]]
else: # if f0 > 6.0
if f0 <= 8.5:
if f0 <= 7.5:
return [[ 7.]]
else: # if f0 > 7.5
return [[ 8.]]
else: # if f0 > 8.5
return [[ 9.]]
Here are some stumbling blocks that I see in other answers:
Using tree_.threshold == -2 to ...
What does map(&:name) mean in Ruby?
...as originally added by ActiveSupport but has been integrated into Ruby 1.8.7. This is its implementation:
class Symbol
def to_proc
Proc.new do |obj, *args|
obj.send self, *args
end
end
end
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Set focus on textbox in WPF
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usefulBeeusefulBee
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