[R] Building a formula using paste

From: john seers \(IFR\) <john.seers_at_bbsrc.ac.uk>
Date: Fri, 1 Feb 2008 09:31:14 -0000

Hi All

I have looked but cannot find an answer to this.

I want to build a formula dynamically (in a function), using for example paste, and using it in a model:

  	f1<-formula(paste(fr, "~ SensoryTerm"))
  	m1<-aov(f1, data=vdata)

So this is the equivalent of m1<-aov(F1 ~ SensoryTerm, data=vdata)

This works fine but the problem is the formula appears as "f1" in the summary(m1) of the model and not "F1 ~ SensoryTerm". With many models this can be a bit confusing ....

Is there a way to code this so the formula appears in the model summary?


John Seers

> sessionInfo()

R version 2.6.1 (2007-11-26)

LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United Kingdom.1252;LC_MONETARY=English_United
Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252

attached base packages:
[1] stats graphics grDevices datasets utils methods base

other attached packages:
 [1] pixmap_0.4-7 gplots_2.3.2 gdata_2.3.1 gtools_2.4.0 rcom_1.5-2.2
 [6] nnet_7.2-38 e1071_1.5-17 class_7.2-38 tree_1.0-26 mgcv_1.3-29

[11] MASS_7.2-38 car_1.2-7 RODBC_1.2-2 RWinEdt_1.7-9


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Received on Fri 01 Feb 2008 - 09:35:20 GMT

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