Lattice: Add abline to Single Value qqmath() Plot
On Tue, May 15, 2012 at 4:19 PM, Rich Shepard <rshepard at appl-ecosys.com> wrote:
On Tue, 15 May 2012, David L Carlson wrote:
David,
?I have 130 plots to produce (30 chemicals un-transformed and three
transformations). The R console insists that I retype each of the 6 lines
(adding a prepanel.qqmathline line) each time. Makes more sense to put all
the commands in a script that I can run within R using "source('metals.R')".
Apologies in advance if I misinterpret " R console insists that I retype ..." but actually makes more sense (than sourcing a script) to use the group argument (see the last example in ?qqmath) as in 4 groups in each of 30 panels, or allow.multiple=T, outer=T if you really want separate panels for each transformation. Also can use layout=c(1,1,120) if you need each in a separate page - or say c(3,2,20) for 20 pages of 6 panels each, etc. Regarding your script, there is a syntax error:
?However, R appears to not see that the first line does not terminate the
command and the following lines are continuations. The source is,
pdf('ag_norm.pdf')
qqmath(~ Ag | factor(basin), data = surfchem.cast, main = 'Silver
(Untransformed'),
Right here the " ' " is on the wrong side of " ) " causing the error:
Error in source("metals.R") : metals.R:4:83: unexpected ','
because the plot is "done" with ) with unexpected "," following. You want ...main = ' Silver (Untransformed) ' , Personally I find using spaces whenever possible helps me avoid this type of syntax error (which is the most frustrating...) Cheers
3: pdf('ag_norm.pdf')
4: qqmath(~ Ag | factor(basin), data = surfchem.cast, main = 'Silver
(Untransformed'),
with a caret under the last ')'.
?What syntax error did I commit in the call to qqmath() above?
Rich
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