[Rd] Matplot does not work with x being POSIXt class (PR#9412)

From: <gregor.gorjanc_at_bfro.uni-lj.si>
Date: Thu 07 Dec 2006 - 12:56:01 GMT


Hi,

Matplot works with x being Date class but not POSIXt. Here is the example with R version 2.5.0 Under development (unstable) (2006-12-06 r40129)

Example:

x <- Sys.Date() - c(1:10)
y <- cbind(1:10, 10:1)
class(x)
## [1] "Date"

matplot(x, y)

x <- strptime(as.character(x), format="%Y-%m-%d")
## [1] "POSIXt" "POSIXlt"

matplot(x, y)
Error in matplot(x, y) : 'x' and 'y' must have only 1 or the same number of columns

Additionally, matplot with x being Date class does not use apropriate annotation for x axis.

Thank you!

Gregor



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