[R] format of 2x2 table

Chuck Cleland ccleland at optonline.net
Wed Feb 1 21:32:36 CET 2006


library(gmodels)
?CrossTable

array chip wrote:
> Does anyone know how I can generate a 2x2 table in a
> format where in each cell of the table, it contains a)
> count (frequency) b) total percentage c) row
> percentage d) column percentage. SAS can generate this
> format easily, is there a R package that can do this?
> 
> Frequency |
> Percent   |
> Row Pct   |
> Col Pct   | positive  negative  |  Total
> --------------------------------|-------
> disease   |        6        22  |     28
>           |    20.69     75.86  |  96.55
>           |    21.43     78.57  |
>           |   100.00     95.65  |
> ----------|---------------------|-------
> normal    |        0         1  |      1
>           |     0.00      3.45  |   3.45
>           |     0.00    100.00  |
>           |     0.00      4.35  |
> ----------|---------------------|-------
> Total     |        6        23  |     29
>           |    20.69     79.31  | 100.00
> 
> Thanks
> 
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-- 
Chuck Cleland, Ph.D.
NDRI, Inc.
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