Michael Cohen
2014-Apr-30 13:44 UTC
[Rd] ReplayPlot, limited to single session for RecordPlot()
R had an internal Plot format which could be saved in files and then reused. Just like one can save data.frames or lists of data which I routinely do could save plot which could be used for further elaboration and analysis. Thus you could modify a plot after you saved it. Matlab has a fig format which it uses for that purpose. The current version of R version 3 allows plots only to be used within a particular session. You can save it with recorded plot but you cannot reuse the old plot. I typically do 400 or 500 plots a session including diagnostic plots for the package rugarch which I routinely saved and reused. I had to modify my code to regenerate my plots on demand. If the internal format of a plot is so unstable that replaying i.e. displaying it damages R then the format needs to be entirely fixed. This is independent of the graphical devise used to display the plot. In fact the internal structure should be graphics devise independt and display on unix or windows or whatever OS it is created on. Either the internal format which should be redesigned, or the error message needs to be taken out of the format. This internal format if done right has two uses. First it produces plot which are modifyable unlike say svg() or pdf(). Second it should save space and be suitable for eloading into R. Regenerating these from data each time is an unnecessary waste of time as far as I can tell. Its hard to see why the developers did this. ---mike -- Michael Cohen Work: 808 Commonwealth Avenue, Actuarial Sciences, Boston Mass Home: 25 Stearns Road #3 Brookline, MA Ph: 1-857-389-3432(c) 1-617-758-5509(w) 617-734-8828(h) Fax: 617-353-7755 [[alternative HTML version deleted]]
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