Dear Alessandro
I am not sure what you mean by "conditional plot"
But if it is about having a different symbol, for different soil parent
materials, you can use the pch argument in TT.plot()
#######
require( soiltexture )
# :: 1st create a dummy texture dataset
my.text <- data.frame(
"CLAY" = c(05,60,15,05,25,05,25,45,65,75,13,47),
"SILT" = c(05,08,15,25,55,85,65,45,15,15,17,43),
"SAND" = c(90,32,70,70,20,10,10,10,20,10,70,10),
"parent"= rep(1:2,each=6) # parent material and symbol code
) #
dim( my.text )
TT.plot( tri.data = my.text, pch = my.text[,"parent"] )
#######
Is that what you need?
All the best
Julien
________________________________________
From: r-help-bounces at r-project.org [r-help-bounces at r-project.org] On
Behalf Of samuel-rosa [alessandrosamuel at yahoo.com.br]
Sent: 30 August 2011 03:48
To: r-help at r-project.org
Subject: [R] Conditional plots in the soiltexture package
Dear R users
I'd like to know if it is possible to create conditional plots in the
soiltexture package. I have data from the particle size distribution of
soils derived from two parent materials and I want to use the parent
material as conditioner.
Thanks a lot.
Alessandro Samuel-Rosa
Post-Graduation Program in Soil Science
Federal University of Santa Maria
Av. Roraima, n? 1000, CEP 97105-970
Santa Maria, RS, Brazil
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