Most of my animations that used to work
on windows() version 2.11.1 and earlier now flash
as if the double buffering is turned off or buffer swapping
is triggered by other events than in the past.
The simplified example below using symbols
should illustrate the problem in a windows environment.
I have doubled buffered animations that I show in class.
They used to work but now flash.
The default windows() option is buffered = TRUE.
Just in case, I tried using windows( buffered = TRUE)
but this made no difference.
I am not sure when the change occurred.
An older R2.11 version in one cla
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