[R] Descriptive statistics table

[Kjetil Brinchmann Halvorsen]

Mihai Nica wrote:

>Greetings:
>
>I would like to make a table with descriptive statistics for a data.frame. I guess the question is how can I put together, in a table, the results from, say:
>
>apply(df, 2, mean, na.rm =T)
>apply(df, 2, median, na.rm =T)
>.......
>
>Thanks,
>
>Mihai Nica
>Jackson State University
>155 B Parkhurst Dr.
>Jackson, MS 39202
>601 969 5423
>601 914 0361
>	[[alternative HTML version deleted]]
>
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>
>  
>
Apart from Uwe's advice of reading summary.data.frame,
here is a very simple version:

 > test <- data.frame(x=rnorm(100), y=rnorm(100), z=rnorm(100))
 > sapply(test, function(x) {
            res <- c(mean(x), median(x), mad(x), sd(x))
            names(res) <- c("mean","median","mad","sd")
            res}
  )
               x          y           z
mean   0.2159557 0.01684044 -0.05950480
median 0.1123084 0.13149150  0.01451704
mad    1.0054574 0.91742137  1.16986352
sd     0.8999813 0.98771362  1.02901577

Kjetil

-- 

Kjetil Halvorsen.

Peace is the most effective weapon of mass construction.
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