You need to figure out how to tell txtProgressBar what the progress is. One simple option would be that if you are installing 10 packages, then create the bar with a range of values from 0 to 10 and initialize it at 0, then after the first package installs update it to show 1, after the 2nd installs update it to show 2, etc. until all 10 are installed.
This is the simplest from the programming side, but the packages may take different amounts of time to install. If you have a feel for how long they take to install (relative to each other) then you can incorporate this with a percentage, e.g. after the 1st package installs you may set the bar to 28%, after the second installs you may then update it to 31%, etc. with the jumps proportional to expected time to install. On Wed, Jul 20, 2016 at 2:00 AM, Ivan Calandra <ivan.calan...@univ-reims.fr> wrote: > Dear useRs, > > In a script that will be source()d, I want to install the uninstalled > packages and follow the progression with a bar. So I looked at > txtProgressBar() but I cannot figure out how to use it to show the > progression of the installation. > > All the examples I have found just display the progress of... the progress > bar itself ? > > Any idea? > > Thanks in advance, > Ivan > > -- > Ivan Calandra, PhD > Scientific Mediator > University of Reims Champagne-Ardenne > GEGENAA - EA 3795 > CREA - 2 esplanade Roland Garros > 51100 Reims, France > +33(0)3 26 77 36 89 > ivan.calan...@univ-reims.fr > -- > https://www.researchgate.net/profile/Ivan_Calandra > https://publons.com/author/705639/ > > ______________________________________________ > 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. -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com ______________________________________________ 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.