[ESS] Weird knitr error

[Vitalie Spinu]

ESS weaves witht he following command:

   local({..od <- getwd(); setwd("dir_of_foo"); require(knitr); knit("foo.Rnw"); setwd(..od) })

My guess is that knitr does some fancy evaluation that relies on knit
being called at top level. In that case it is more of an knitr issue.

    Vitalie

 >> Kevin Wright <kw.stat at gmail.com>
 >> on Thu, 2 May 2013 10:13:11 -0500 wrote:

 > Windows 7, latest stable ESS, R 32 bit.

 > I have a rnw file that I'm converting to pdf using knitr.  The output below
 > is copied from the pdf.  Note the final error message indicates that "datm"
 > cannot be found, even though ls() and head() can find "datm"!

 > RStudio compiles this just fine.

 > How do I debug this error?

 > Kevin

 R> ls()
 > [1] "dat" "datm" "datna" "datr" "gam" "ge" "M" "m.er" "m.ev" "m.fw"
 > [11] "m.fw0" "m.sv" "m.tw" "mm" "mr" "p.er" "p.ev" "p.fw" "p.sv" "p.tw"
 > [21] "pm" "pr" "vars"

 R> head(datm)
 > env gen yield
 > 1 87:GGA Bienvenu 1.442
 > 2 87:ID Bienvenu 1.242
 > 3 87:MT Bienvenu 2.616
 > 4 87:NC Bienvenu 1.001
 > 5 87:OR Bienvenu 4.556
 > 6 87:SC Bienvenu 2.500

 R> datm$res <- resid(mm)
 > Error: object ’datm’ not found