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Hello, I am currently getting a strange error when I call installed.packages(): Error in if (file.exists(dest) && file.mtime(dest) > file.mtime(lib) && : missing value where TRUE/FALSE needed Calls: installed.packages I am working with R 3.4.0 on Windows. I didn't get this error with R 3.3.3. Apparently, file.mtime() is returning NA well applied to a directory, and

...ification is not done might make it less so. But writing docs that address all our possible misconceptions is pretty difficult (or impossible!), and maybe adding that explicit caveat would confuse others even more... :-( Cheers, Bert On Thu, Feb 8, 2024 at 12:12?AM Jean-Claude Arbaut <arbautjc at gmail.com> wrote: > > Reading the doc for ?simplify2array, I got the impression that with the > 'higher = T' argument the function returns an array of dimension greater > than 2 when it makes sense (the doc says "when appropriate", which is > rather vague). I...

Reading the doc for ?simplify2array, I got the impression that with the 'higher = T' argument the function returns an array of dimension greater than 2 when it makes sense (the doc says "when appropriate", which is rather vague). I would expect a <- list( list(list(1, 2), list(3, 4)), list(list(5, 6), list(7, 8)) ) simplify2array(a, higher = T) to return the same