library(reshape2)
?dcast
Nice example. So nice that it looks like it could be homework... thus the
pointer to docs rather than a full solution. Please read the Posting Guide, and
note that HTML email format is not necessarily a what-you-see-is-what-we-see
format so you should post in plain text next time.
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Sent from my phone. Please excuse my brevity.
On August 1, 2014 12:56:21 PM PDT, Kathy Haapala <ka...@haapi.mn.org> wrote:
>If I have a dataframe x.df as follows:
>> x.df <- data.frame(Year = c(2000, 2000, 2000, 2000, 2000, 2001, 2001,
>2001, 2001, 2002), Group = c(1, 1, 1, 2, 2, 1, 2, 2, 3, 1), Eye_Color =
>c("blue", "blue", "brown", "green", "green", "blue", "brown", "blue",
>"blue", "blue"))
>
>> x.df
> Year Group Eye_Color
>1 2000 1 blue
>2 2000 1 blue
>3 2000 1 brown
>4 2000 2 green
>5 2000 2 green
>6 2001 1 blue
>7 2001 2 brown
>8 2001 2 blue
>9 2001 3 blue
>10 2002 1 blue
>
>how can I turn it into a new dataframe that would take the data from
>multiple rows of Year/Group combinations and output the data into one
>row
>for each combination, like this:
>> x_new.df
> Year Group No_blue No_brown No_green
>1 2000 1 2 1 0
>2 2000 2 0 0 2
>3 2001 1 1 0 0
>4 2001 2 1 1 0
>5 2001 3 1 0 0
>6 2002 1 1 0 0
>
>I've been trying to use for loops, but I'm wondering if anyone has a
>better
>or more simple suggestion.
>
> [[alternative HTML version deleted]]
>
>______________________________________________
>R-help@r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.
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