package ‘contingency.tables’ is not available (for R version 2.15.2)
Le lundi 04 mars 2013 ? 14:43 -0600, Joanna Papakonstantinou a ?crit :
Thank you. I actually ended up using:
CrossTable(mdt)
Cell Contents
|-------------------------|
| N |
| Chi-square contribution |
| N / Row Total |
| N / Col Total |
| N / Table Total |
|-------------------------|
Total Observations in Table: 8
|
| Blue | Green | Red | Row Total |
-------------|-----------|-----------|-----------|-----------|
A | 1 | 0 | 1 | 2 |
| 0.083 | 0.500 | 0.083 | |
| 0.500 | 0.000 | 0.500 | 0.250 |
| 0.333 | 0.000 | 0.333 | |
| 0.125 | 0.000 | 0.125 | |
-------------|-----------|-----------|-----------|-----------|
G | 1 | 0 | 1 | 2 |
| 0.083 | 0.500 | 0.083 | |
| 0.500 | 0.000 | 0.500 | 0.250 |
| 0.333 | 0.000 | 0.333 | |
| 0.125 | 0.000 | 0.125 | |
-------------|-----------|-----------|-----------|-----------|
H | 1 | 0 | 1 | 2 |
| 0.083 | 0.500 | 0.083 | |
| 0.500 | 0.000 | 0.500 | 0.250 |
| 0.333 | 0.000 | 0.333 | |
| 0.125 | 0.000 | 0.125 | |
-------------|-----------|-----------|-----------|-----------|
W | 0 | 2 | 0 | 2 |
| 0.750 | 4.500 | 0.750 | |
| 0.000 | 1.000 | 0.000 | 0.250 |
| 0.000 | 1.000 | 0.000 | |
| 0.000 | 0.250 | 0.000 | |
-------------|-----------|-----------|-----------|-----------|
Column Total | 3 | 2 | 3 | 8 |
| 0.375 | 0.250 | 0.375 | |
-------------|-----------|-----------|-----------|-----------|
and
expected.counts <- (apply(mdt,1,sum) %o% apply(mdt,2,sum))/sum(mdt)
print(expected.counts)
Blue Green Red
A 0.75 0.5 0.75
G 0.75 0.5 0.75
H 0.75 0.5 0.75
W 0.75 0.5 0.75 to get the info I needed.
Actually, CrossTable(..., expected=TRUE) should give you the same result. Regards
Regards,
Joanna
On Mon, Mar 4, 2013 at 2:15 PM, Milan Bouchet-Valat
<nalimilan at club.fr> wrote:
Le lundi 04 mars 2013 ? 12:37 -0600, Joanna Papakonstantinou a
?crit :
> I am trying to create contingency tables (to evaluate prior
to performing
> Pearson's Chi-Squared test for independence). I would like
to see column
> and row totals as well as expected and observed values and
cell counts.
> I tried to use the package "contingency. tables" but get the
following
> warning:
> package contingency.tables is not available (for R versions
2.15.2)
> Is there something comparable or was this replaced with
something else for
> later versions of R.
> Any help would be appreciated so that I may create a
contigencey table like
> this.
I'm not aware of the existence of such a package, but base R
provides
most of what you need, and other packages offer even more. See
e.g.
http://www.statmethods.net/stats/frequencies.html
Regards
--
******************************************************************
Joanna Papakonstantinou, Ph.D.