[Rd] bug in acf (PR#9360)

Full_Name: Ian McLeod Version: 2.3.1 OS: Windows Submission from: (NULL) (129.100.76.136) > There is a simple bug in acf as shown below: > > z <- 1 > acf(z,lag.max=1,plot=FALSE) > Error in acf(z, lag.max = 1, plot = FALSE) : >'lag.max' must be at least 1 > This is certainly a bug. Ther

[Rd] optim possible bug "L-BFGS-B" (PR#8261)

Full_Name: Ian McLeod Version: 2.10 OS: windows Submission from: (NULL) (129.100.76.136) Subject: Apparent bug in optim with "L-BFGS-B". I found that optim works most of the time but sometimes produced an incorrect answer. In order to document what is happening, I tried to simplify by re-wr