[R] Problem with bargraph.CI in Sciplot package

[Metconnection]

Hi there, 
I wonder if anyone can help me. I'm trying to use bargraph.CI in the Sciplot
package when there is a missing combination of the factor levels.
Unfortunately the standard errors on the plot do not appear to be correct. 

Consider an analysis consisting of two factors A and B. When all factor
level combinations are present all appears fine:

library(sciplot)

#all data
response<-c(32,54,32,65,34,65,65,45,54,23,43,23,76,87,65,45)
factorA<-c("A","A","A","A","A","A","A","A","B","B","B","B","B","B","B","B")
factorB<-c("a","a","a","a","b","b","b","b","a","a","a","a","b","b","b","b")
data<-data.frame(response,factorA,factorB)
bargraph.CI(x.factor = data$factorB,data$response, group=data$factorA,
legend=TRUE)



but when I remove a combination of the two factors the error whiskers appear
to be on the wrong bars:


#excluding one combination
response<-c(34,65,65,45,54,23,43,23,76,87,65,45)
factorA<-c("A","A","A","A","B","B","B","B","B","B","B","B")
factorB<-c("b","b","b","b","a","a","a","a","b","b","b","b")
data<-data.frame(response,factorA,factorB)
bargraph.CI(x.factor = data$factorB,data$response, group=data$factorA,
legend=TRUE)


I had a look at the ci.fun options but with no success.

Thanks in advance for any ideas
Simon
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