From: David Winsemius <dwinsemius_at_comcast.net>

Date: Sun, 22 May 2011 09:52:41 -0400

Date: Sun, 22 May 2011 09:52:41 -0400

On May 22, 2011, at 7:47 AM, Axel Urbiz wrote:

> is it possible to add dash lines to tables or matrices when they are > printed? An example of what I'm looking for is this: > > library(Design) > y <- sample(c(0,1),100, replace = TRUE) > x <- rnorm(100) > summary(y ~ x)

There is a method for summary on formula objects found by typing

methods(summary) # didn't find the answer looking at code of summary.formula.

Then there is a print method for summary.formula objects>

methods(print)

# examine the 3 print.summary. .... methods # didn't find the answer there, either, but did notice that the # function `print.char.matrix` was being used near the end of the code

> M <- matrix(letters[1:10], 2)

> print.char.matrix(M)

+-+-+-+-+-+

|a|c|e|g|i|

+-+-+-+-+-+

|b|d|f|h|j|

+-+-+-+-+-+

It is in package Hmisc and its behavior is documented:

?print.char.matrix

> print.char.matrix( table(sample(1:10, 100, replace=TRUE) ) )

*+--+--+
*

| 1|12|

*+--+--+
*

| 2| 6|

*+--+--+
*

| 3|11|

*+--+--+
*

| 4|13|

*+--+--+
*

| 5|12|

*+--+--+
*

| 6| 7|

*+--+--+
*

| 7| 8|

*+--+--+
*

| 8| 8|

*+--+--+
*

| 9|14|

*+--+--+
*

|10| 9|

*+--+--+
*

-- David Winsemius, MD West Hartford, CT ______________________________________________ R-help_at_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.Received on Sun 22 May 2011 - 13:56:21 GMT

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