temp.ttt <- "ttt <- 1\nttt"
conn.ttt <- textConnection(temp.ttt)
source(conn.ttt, echo=TRUE) ## name of variable is echoed
close(conn.ttt)
cat(file="c:/temp/temp.R", temp.ttt) ## name of variable not echoed
source("c:/temp/temp.R", echo=TRUE)
temp.abc <- "abc <- 1\nabc"
conn.abc <- textConnection(temp.abc)
source(conn.abc, echo=TRUE) ## name of variable is echoed
close(conn.abc)
cat(file="c:/temp/temp.R", temp.abc) ## name of variable is echoed
source("c:/temp/temp.R", echo=TRUE)
The behavior I don't understand is why the variable name "ttt" is not echoed
when sourced from a file. It is echoed when sourced from a character string.
The name is echoed in both situations when it begins with a letter other
than "t". Specifically I have tested "tt" and "ttt".
I am using R-2.6.1 on Windows.
Rich
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