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sdd1
2002 Jan 08
3
colour coding and different point types in a plot
I'm trying to plot four different sorghum types on a plot using a different
colour/symbol combination for each sorghum type (TYPBOTA in the script
below). What am I doing wrong?:
plot(xx$LATITUDE,xx$SFD1,
points(xx$SFD1,xx$LATITUDE,
col=1:4[codes(xx$TYPBOTA)],pch=c(4,3,1,2)[codes(xx$TYPBOTA)])
grid()
I get the following error message
Error in 1:4[codes(xx$TYPBOTA)] : NA/NaN argument
In addition: Warning message:
Numerical expression has 162 elements: only the first used in:
1:4[codes(xx78$T...