I'm using the picker() function to manipulate a ggplot2 line graph. I have strings with accented characters in the list given to picker. When I select a string with accented characters, ggplot() returns
Error in plot.window(xlim, ylim, log = log, ...).
The sample code works fine:
manipulate(
barplot(as.matrix(longley[,factor]),
beside = TRUE, main = factor),
factor = picker("GNP", "Unemployed", "Employed"))
However, if I adapt the code as follows, picker() fails:
library(manipulate)
dflongley <- longley
colnames(dflongley)[7] <- "Employé"
Encoding(colnames(dflongley)) <- "UTF-8"
x <- c("GNP", "Unemployed", "Employé")
Encoding(x) <- "UTF-8"
manipulate(
barplot(as.matrix(dflongley[,factor]),
beside = TRUE, main = factor),
factor = picker(as.list(x)))
head(dflongley, 1) gives this:
GNP.deflator GNP Unemployed Armed.Forces Population Year Employ<U+00E9>
1947 83 234.289 235.6 159 107.608 1947 60.323
x:
[1] "GNP" "Unemployed" "Employ<U+00E9>"
When "Employé" is selected, NULL is passed by picker() to barplot() and I get the following errors:
Error in plot.window(xlim, ylim, log = log, ...) :
need finite 'xlim' values
In addition: Warning messages:
1: In min(w.l) : no non-missing arguments to min; returning Inf
2: In max(w.r) : 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
Any idea of what is wrong?
