Re: [R] graphics useRaster check_irregular definition for date or posix

Hi Paul Thanks for the FAQs related to the unwanted white lines. However, even if it is just the png/pdf viewer that causes the white lines, I would like to try to avoid them as much as possible, and setting useRaster to true does that. My wish would be that I can use a date or POSIX* vector as

[R] graphics useRaster check_irregular definition for date or posix

Hi The function `check_irregular()` defined within `graphics::image.default()` checks if the `useRaster` argument for `graphics::image()` can be true or must be false. According to this function, the following example vector is irregular: ``` time <- seq(as.Date("2020-1-1"), as.Date("2020-12-31

[R] What is the threshold for `useRaster` of graphics::image()?

Hi R-help list What is the threshold for the `useRaster` argument of graphics::image() to decide whether a grid is "regular" or not (i.e. the usage of useRaster=T is allowed or not). My `dev.capabilities("rasterImage")$rasterImage` is "yes". I could not find this information in the internet. I a