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Javascript fuzzy search that makes sense
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How to set current working directory to the directory of the script in bash?
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What does .SD stand for in data.table in R
...his is your data.table:
DT = data.table(x=rep(c("a","b","c"),each=2), y=c(1,3), v=1:6)
setkey(DT, y)
DT
# x y v
# 1: a 1 1
# 2: b 1 3
# 3: c 1 5
# 4: a 3 2
# 5: b 3 4
# 6: c 3 6
Doing this may help you see what .SD is:
DT[ , .SD[ , paste(x, v, sep="", collapse="_")], by=y]
# y V1
# 1...
A better similarity ranking algorithm for variable length strings
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157
Simon White of Catalysoft wrote an article about a very clever algorithm that compares adjacen...
How to calculate the difference between two dates using PHP?
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Generate random numbers using C++11 random library
...m trying to figure out a way of generating random numbers using the new C++11 <random> library. I have tried it with this code:
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Python: Using .format() on a Unicode-escaped string
....format(s)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\u2265' in position 0: ordinal not in range(128)
>>> print u"{0}".format(s)
≥
>>>
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JSON left out Infinity and NaN; JSON status in ECMAScript?
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Infinity and NaN aren't keywords or anything special, they are just properties on the global obj...
How do you downgrade rubygems?
I have rubygems 1.3.1 installed but I want to go back to 1.2.0. What's the command to downgrade rubygems?
6 Answers
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