On 2015-06-17 20:24, Joshua Bradley wrote:
How would this new '+' deal with factors, as paste does or as the current
'+'
does? Would number+string and string+number cause errors (as in current
'+' in R and python) or coerce both to strings (as in current R:paste and
in perl's '+').
I had
Hi Joshua,
On 06/17/2015 11:24 AM, Joshua Bradley wrote:
How would this new '+' deal with factors, as paste does or as the current
'+'
does? Would number+string and string+number cause errors (as in current
'+' in R and python) or coerce both to strings (as in current R:paste and
in perl's
At the risk of unnecessarily (annoyingly?) prolonging a conversation that
has died down...
I don't think I've seen the sep or collapse arguments to paste mentioned
as aspects to consider. I don't see any way in which this version of '+'
could offer those arguments. Hence I would consider this
if '+' and paste don't change their behavior with respect to
factors but you encourage people to use '+' instead of paste
then you will run into problems with data.frame columns because
many people don't notice whether a character-like column is
character or factor. With paste() this is not a
Hi Bill,
On 06/17/2015 12:36 PM, William Dunlap wrote:
if '+' and paste don't change their behavior with respect to
factors but you encourage people to use '+' instead of paste
then you will run into problems with data.frame columns because
many people don't notice whether a character-like
How would this new '+' deal with factors, as paste does or as the current
'+'
does? Would number+string and string+number cause errors (as in current
'+' in R and python) or coerce both to strings (as in current R:paste and
in perl's '+').
I had posted this sample code previously to
Just to clarify, primitive (C-level) generics do not support dispatch
on basic classes (like character). This is for performance (no need to
consider dispatch on non-objects) and for sanity (in general,
redefining fundamental behaviors is dangerous). It is of course
possible to define a + method
On Wed, Jun 17, 2015 at 9:04 AM, Michael Lawrence
lawrence.mich...@gene.com wrote:
Just to clarify, primitive (C-level) generics do not support dispatch
on basic classes (like character). This is for performance (no need to
consider dispatch on non-objects) and for sanity (in general,
... adding the ability to concat
strings with '+' would be a relatively simple addition (no pun intended)
to
the code base I believe. With a lot of other languages supporting this
kind
of concatenation, this is what surprised me most when first learning R.
Wow! R has a lot of surprising
On Wed, Jun 17, 2015 at 12:45 PM, William Dunlap wdun...@tibco.com wrote:
... adding the ability to concat
strings with '+' would be a relatively simple addition (no pun intended)
to
the code base I believe. With a lot of other languages supporting this
kind
of concatenation, this is what
Hi, first time poster here. During my time using R, I have always found
string concatenation to be (what I feel is) unnecessarily complicated by
requiring the use of the paste() or similar commands.
When searching for how to concatenate strings in R, several top search
results show answers that
Bad choice of words I'm afraid. What I'm ultimately pushing for is a
feature request. To allow string concatenation with '+' by default. Sure I
can write my own string addition function (like the example I posted
previously) but I use it so often that I end up putting it in every script
I write.
One of the poster's on the SO post I linked to previously suggested this
but if '+' were made to be S4 compliant, then adding the ability to concat
strings with '+' would be a relatively simple addition (no pun intended) to
the code base I believe. With a lot of other languages supporting this
On Tue, Jun 16, 2015 at 10:30 PM, Joshua Bradley jgbradl...@gmail.com wrote:
One of the poster's on the SO post I linked to previously suggested this but
if '+' were made to be S4 compliant, then adding the ability to concat
strings with '+' would be a relatively simple addition (no pun
On Jun 16, 2015 3:44 PM, Joshua Bradley jgbradl...@gmail.com wrote:
Hi, first time poster here. During my time using R, I have always found
string concatenation to be (what I feel is) unnecessarily complicated by
requiring the use of the paste() or similar commands.
I don't follow. In what
On Tue, Jun 16, 2015 at 6:32 PM, Joshua Bradley jgbradl...@gmail.com wrote:
[...]
An old (2005) post
https://stat.ethz.ch/pipermail/r-help/2005-February/066709.html on r-help
mentioned possible performance reasons as to why this type of string
concatenation is not supported out of the box but
Hi Joshua,
On 06/16/2015 03:32 PM, Joshua Bradley wrote:
Hi, first time poster here. During my time using R, I have always found
string concatenation to be (what I feel is) unnecessarily complicated by
requiring the use of the paste() or similar commands.
When searching for how to concatenate
On Tue, Jun 16, 2015 at 8:24 PM, Hervé Pagès hpa...@fredhutch.org wrote:
[...]
If I was to override `+` to concatenate strings, I would make it stick
to the recycling scheme used by arithmetic and comparison operators
(which is the most sensible of all IMO).
Yeah, I agree, paste's recycling
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