is get() really what I want here?

Hi Daniel,

get() will work for any object, but cat() may not.  cat() should work
for arrays, but it will be messy even for relatively small ones.  For
example, run:
cat("Hello", array(1:100, dim = c(10, 10)), sep = " ")

What are you really trying to do?  If you are just trying to figure
out what random variables in your workspace you've assigned but do not
know/forgot what they are, consider:

ls.str(pattern="^obj")

as a better way to get their names and some useful summaries
(including class and number of observations).

HTH,

Josh

On Tue, Oct 19, 2010 at 10:29 PM, Daniel Weitzenfeld

# Let's say I have 5 objects, object_1, object_2, etc.
for (i in 1:5) {
? ?assign(paste("object_",i, sep=""), i+500)
}

# Now, for whatever reason, I don't know the names of the objects I've
created, but I want to operate on them.
list<-ls(pattern="^obj")

#Is get best?
for (l in list) {
? ?cat("\n", l, "is", get(l), sep=" ")
}

Is get() the correct command to use in this situation? ?What if rather than
just an integer, object_1 etc are large arrays - does that change the
answer, for speed reasons?

Thanks in advance,
Dan

? ? ? ?[[alternative HTML version deleted]]

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