If you can't reproduce them, how do you know they are correct? On July 4, 2019 11:34:53 AM PDT, Spencer Brackett <spbracket...@saintjosephhs.com> wrote: >Thank you for the clarification. So should I not rely on importing a >saved >environment from now on? I am currently experiencing some difficulties >with >reproducing the output (aka the objects listed in my environment), >which is >why I was trying to load them all at once. > >Best, > >Spencer > >On Thu, Jul 4, 2019 at 1:24 PM Duncan Murdoch ><murdoch.dun...@gmail.com> >wrote: > >> On 04/07/2019 12:32 p.m., Spencer Brackett wrote: >> > Hello again, >> > >> > I might be repeating myself here, so my apologies, but do I have >to >> run a >> > script file from my R Studio to reimplement my previous work for a >given >> > project.... so to start up where I left off.... or is opening up R >and, >> > with my global environment automatically reloading as it was when I >last >> > worked on, sufficient? >> >> >> Saving your workspace when you quit is a common default, but it is >> generally a bad idea. Old junk collects in there, and makes new >results >> harder to debug. >> >> A better workflow is to never save the whole workspace. If you have >> just computed some object(s) and the computation took so long you >don't >> want to repeat it, then save just a minimum, and load them later in a >> new session. >> >> A particularly dangerous situation happens if you sometimes save your >> workspace and sometimes don't. You can end up with situations like >this: >> >> Session 1: compute some random values. Save the workspace, >including >> the random number key. >> >> Session 2: automatically load the saved workspace. Compute some new >> random values. Quit without saving the workspace. >> >> Session 3: automatically load the saved workspace from Session 1, >> including the random number seed. Any random values computed in this >> session could be identical to the values in Session 2, because they >are >> starting with the same seed. >> >> If you don't have a saved workspace to load, you end up with a blank >> slate, and the random number key is generated based on time of day >and >> process number, so is almost certainly different in every session. >> (Sometimes you want a repeated seed for reproducibility, but it's >always >> bad when you're surprised by one.) >> >> Duncan Murdoch >> > > [[alternative HTML version deleted]] > >______________________________________________ >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide >http://www.R-project.org/posting-guide.html >and provide commented, minimal, self-contained, reproducible code.
-- Sent from my phone. Please excuse my brevity. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
