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silly
2005 May 27
3
Soil texture triangle in R?
Dear R users,
has anybody made an attempt to create the soil texture triangle graph in
R? For an example see here:
http://www.teachingkate.org/images/soiltria.gif
I would like to get the lines in black and texture labels in gray to
allow for plotting my texture results on top.
Any examples or suggestions are very welcome!
Thanks in advance,
Sander.
--
2010 Oct 20
2
histograms resulting from call to soil.texture
...end). One will notice I have plotted the points based on
whether or not they are in a region called 'upstream' or 'downstream'. I'm
curious if there is a way to somehow extract counts of the number of points
(red points and blue points) falling within each classification (e.g. silty
loam, sandy clay, etc.)?
Eric
soil.dat<-read.table(textConnection("Field_Num Region Region_Num Region_Sym
Region_Col Date Location Location_Num sand silt clay
1 US 1 1 4 6/3/1999 Surface 1 26.25 52.5 21.25
1 US 1 1 4 8/8/2000 Surface 1 27.5 52.5 20
1 US 1 1 4 8/8/2000 One_Foot 2 27.5 50 2...