[Rd] Apropos sprintf behavior

From: Steve Dutky <sdutky_at_starpower.net>
Date: Wed 16 Feb 2005 - 04:04:39 EST


If changes to sprintf behavior are being considered, would it be possible to allow some of the other K&R conversion specifiers?

xX - for integer to hex conversion, and
c - for ascii value to character conversion

would all be useful for me.

Thanks, Steve Dutky  

On Mon, 14 Feb 2005 11:02:20 +0000 (GMT), Prof Brian Ripley wrote:

+On Mon, 14 Feb 2005, Wolfgang Huber wrote:
+
+> Dear Prof. Ripley,
+>
+> Would it be possible to make sprintf accept vector
arguments?
+> I.e. allow expressions like
+> sprintf("%04d", 1:3)
+> to produce something like what currently needs to be done
via
+> sapply(1:3, function(i) sprintf("%04d",i))
+
+I have thought about this, but it is not really clear what
the right thing
+would be here with multiple arguments. What should
+
+sprintf(("%04d %s", 1:3, "abc")
+
+do? Produce a character vector of length 1 or 3? If of
length 1,
+"0001 0002 0003 abc" or "0001 2 0003 abc"?
+
+I guess the most R-like thing would be to recycle args to
the length of
+the longest and then use them in parallel, but that can be
done fairly
+easily by *apply.



R-devel@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel Received on Wed Feb 16 03:15:34 2005

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