help with plotting results of lda
Works for me with library(MASS) plot(lda(Species~., data=iris)) hence you may want to profide the data to enable us to reproduce your problem... Uwe Ligges
pgseye wrote:
Hi, I've performed an lda and obtained a classification table for some of my data:
efa.dfa<-lda(groups~.,efa.scores.8,CV=T) str(efa.dfa)
List of 5 $ class : Factor w/ 2 levels "1","2": 1 2 1 2 1 1 2 2 1 2 ... $ posterior: num [1:160, 1:2] 0.99083 0.00852 0.93983 0.23186 0.85931 ... ..- attr(*, "dimnames")=List of 2 .. ..$ : chr [1:160] "1" "2" "3" "4" ... .. ..$ : chr [1:2] "1" "2" $ terms :Classes 'terms', 'formula' length 3 groups ~ Comp.1 + Comp.2 + Comp.3 + Comp.4 + Comp.5 + Comp.6 + Comp.7 + Comp.8 + Comp.9 + Comp.10 + Comp.11 + Comp.12 + ... .. ..- attr(*, "variables")= language list(groups, Comp.1, Comp.2, Comp.3, Comp.4, Comp.5, Comp.6, Comp.7, Comp.8, Comp.9, Comp.10, Comp.11, Comp.12, Comp.13, ... .. ..- attr(*, "factors")= int [1:35, 1:34] 0 1 0 0 0 0 0 0 0 0 ... .. .. ..- attr(*, "dimnames")=List of 2 .. .. .. ..$ : chr [1:35] "groups" "Comp.1" "Comp.2" "Comp.3" ... .. .. .. ..$ : chr [1:34] "Comp.1" "Comp.2" "Comp.3" "Comp.4" ... .. ..- attr(*, "term.labels")= chr [1:34] "Comp.1" "Comp.2" "Comp.3" "Comp.4" ... .. ..- attr(*, "order")= int [1:34] 1 1 1 1 1 1 1 1 1 1 ... .. ..- attr(*, "intercept")= int 1 .. ..- attr(*, "response")= int 1 .. ..- attr(*, ".Environment")=<environment: R_GlobalEnv> .. ..- attr(*, "predvars")= language list(groups, Comp.1, Comp.2, Comp.3, Comp.4, Comp.5, Comp.6, Comp.7, Comp.8, Comp.9, Comp.10, Comp.11, Comp.12, Comp.13, ... .. ..- attr(*, "dataClasses")= Named chr [1:35] "numeric" "numeric" "numeric" "numeric" ... .. .. ..- attr(*, "names")= chr [1:35] "groups" "Comp.1" "Comp.2" "Comp.3" ... $ call : language lda(formula = groups ~ ., data = efa.scores.8, CV = T) $ xlevels : list()
table(groups, Classified=efa.dfa$class)
Classified
groups 1 2
1 59 21
2 10 70
but when I try to plot the results I get:
plot(efa.dfa)
Error in plot.window(...) : need finite 'xlim' values In addition: Warning messages: 1: In min(x) : no non-missing arguments to min; returning Inf 2: In max(x) : no non-missing arguments to max; returning -Inf 3: In min(x) : no non-missing arguments to min; returning Inf 4: In max(x) : no non-missing arguments to max; returning -Inf anyone have any ideas? Thanks a lot, Paul