don't print object attributes

On 28/08/2012 1:12 PM, Liviu Andronic wrote:

Dear all
Suppose the object below:

require(Hmisc)
require(plyr)
x <- dlply(iris, .(Species), describe)

How can I print the object without displaying the attributes? I
inspected ?print and ?print.default with no luck.

Assign a class to the object, and write a print method for it.

For example, this doesn't quite do what you want, but it's a start:

print.noattributes <- function(x, ...) {
     attributes(x) <- NULL
     print(x)
}

class(x) <- "noattributes"
x

It loses some attributes that you probably want to keep (e.g. the
names), but otherwise works on your example.

Duncan Murdoch

x

$setosa
x[, "Sepal.Length"]
        n missing  unique    Mean     .05     .10     .25     .50     .75
       50       0      15   5.006    4.40    4.59    4.80    5.00    5.20
      .90     .95
     5.41    5.61

            4.3 4.4 4.5 4.6 4.7 4.8 4.9  5 5.1 5.2 5.3 5.4 5.5 5.7 5.8
Frequency   1   3   1   4   2   5   4  8   8   3   1   5   2   2   1
%           2   6   2   8   4  10   8 16  16   6   2  10   4   4   2

$versicolor
x[, "Sepal.Length"]
        n missing  unique    Mean     .05     .10     .25     .50     .75
       50       0      21   5.936   5.045   5.380   5.600   5.900   6.300
      .90     .95
    6.700   6.755

lowest : 4.9 5.0 5.1 5.2 5.4, highest: 6.6 6.7 6.8 6.9 7.0

$virginica
x[, "Sepal.Length"]
        n missing  unique    Mean     .05     .10     .25     .50     .75
       50       0      21   6.588   5.745   5.800   6.225   6.500   6.900
      .90     .95
    7.610   7.700

lowest : 4.9 5.6 5.7 5.8 5.9, highest: 7.3 7.4 7.6 7.7 7.9

attr(,"split_type")
[1] "data.frame"
attr(,"split_labels")
       Species
1     setosa
2 versicolor
3  virginica

Regards
Liviu