Hello,
Do you have a function returns codes of given characters?
Best Regards,
hyunjo
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Thnaks a lot!
Could you recommend a manual or book or something for string manipulation in
R,
or give me a direction where I can get a list of string manipulation
functions?
hyunjo
I
2009/10/14 Duncan Murdoch murd...@stats.uwo.ca
On 13/10/2009 6:44 PM, You Hyun Jo wrote:
Hello,
Do you
Hello,
Suppose that you have a data frame 'df' with variables 'V1', 'V2', 'V3',
etc.
Is there any (performance) difference (except the difference of the return
types)
between the following two computations?
subset(df, V1 0, V2)
and
df$V2[df$V1 0]
Best Regards,
hyunjo
2009/9/26 Stefan Grosse singularit...@gmx.net
On Sat, 26 Sep 2009 15:26:12 +0900 You Hyun Jo youhyu...@gmail.com
wrote:
YHJ Is there any (performance) difference (except the difference of
YHJ the return types)
YHJ between the following two computations?
Try it yourself.
?system.time
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