Message-ID: <554cd6450905051747l44a0e937rab48823eb4e69b6@mail.gmail.com>
Date: 2009-05-06T00:47:11Z
From: Etienne Laliberté
Subject: [R-gui] problem with printing a question on R console after plotting with JGR
I'm using the JGR GUI on Ubuntu 9.04. The problem I'm running into is
best illustrated by the following two functions, which in theory
should be equivalent:
useless1 <- function() {
plot(pressure)
answer <- readline("do you see the plot?\n")
}
In JGR calling useless1() plots a graph, and at the same time a
question in the R console appears (hence I know what to answer).
However, with the following function:
useless2 <- function() {
plot(pressure)
cat("do you see the plot?\n")
answer <- readLines(n = 1)
}
In JGR the plot appears but I don't see the question on the R console.
Only when I answer (without actually knowing what the question was!)
then the question appears.
This seems to be a problem with the JGR GUI, because I've never had
this problems with the Windows GUI or when running R directly from the
terminal. The problem is that some functions that I use frequently use
a similar approach than useless2() to ask interactive questions after
plotting.
Does anyone have an idea how to solve this problem (besides suggesting
another GUI)?
Many thanks,
--
Etienne Lalibert?
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