r - ggplot2 caching or plotting in the background -


i'm working on r shiny app plots (with ggplot2) information different chromosomes, , there option show chromosomes together. have bad performance problem, 'all' view, looked caching solutions, didn't find helpful. thought put 2 tabs in app, first single chromosomes, , second together, run in background, , load while user still in first tab, when read tabsets found out this-

notice outputs not visible not re-evaluated until become visible.

so question is, there way bypass this? or there way cache plot when want plot thing left draw it, , skip construct, build, , render stages. (there chance don't understand plotting process, , it's not possible)

one last thing, aware of (the faster) ggvis , ggobi, these not option.


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