R devel - Jan 2002 - comparative rendering of modeling outputs

This note is to r-devel rather than r-announce because it
notes an experimental package that addresses issues that 
intersect with broader developmental issues in R.

I have posted the package

cremo = Comparative REndering of Modeling Outputs

for retrival at

http://www.biostat.harvard.edu/~carey/cremo.html

This package addresses the problem of assembling and
rendering results of multiple linear model fits in formats
suitable for presentation in applications contexts.

An extract from the output of 'example(cremo)':

cremo> data(stackloss)

cremo> attach(stackloss)

cremo> glm2 <- glm(stack.loss ~ Air.Flow + Water.Temp + Acid.Conc.)

cremo> glm3 <- glm(stack.loss ~ Air.Flow + Water.Temp)

cremo> glm4 <- glm(stack.loss ~ Air.Flow * Water.Temp)

cremo> try(print(cremo(list(glm2, glm3, glm4), adeqel =
c("deviance",
    "aic")), quote = F))
      var                 Model 1  Model 2 Model 3 
 [1,] (Intercept)         -39.92   -50.359 22.29   
 [2,]                     (11.896) (5.138) (35.096)
 [3,] Air.Flow            0.716    0.671   -0.516  
 [4,]                     (0.135)  (0.127) (0.58)  
 [5,] Water.Temp          1.295    1.295   -1.93   
 [6,]                     (0.368)  (0.367) (1.58)  
 [7,] Acid.Conc.          -0.152   --      --      
 [8,]                     (0.156)  --      --      
 [9,] Air.Flow:Water.Temp --       --      0.052   
[10,]                     --       --      (0.025) 
[11,] -----               -----    -----   -----   
[12,] deviance            178.83   188.795 150.232 
[13,] aic                 114.576  113.714 110.916 

A preliminary form of the package, which passes "R CMD check" for the 
12-14 version of 1.4.0, can be obtained at

http://www.biostat.harvard.edu/~carey/cremo.html

Much remains to be done for the problem confronted by this
package, and some avenues to be explored are mentioned at the
URL cited above.  Anyone interested in the problem of
specifying modeling report templates is invited to get
involved; the code in cremo is extremely primitive and
some more sensible approaches are sketched on the cremo.html
page.  Distributed under GPL2.
-- 
---
Vince Carey, PhD
Ass't Prof Med (Biostatistics)
Harvard Medical School
Channing Laboratory - ph 6175252265 fa 6177311541
181 Longwood Ave Boston MA 02115 USA

stvjc@channing.harvard.edu

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