On 2011-01-18 16:27, Ben Harrison wrote:
[...snip...]
plot(Ozone ~ Temp, data = aq)
This highlights one of the very confusing aspects of R language for me;
is plot(x, y) the same as plot (y ~ x)? Seems to be, but maybe I'm
missing some nuance.
plot has many methods; see with methods(plo
Hi,
If you don't find droplevels(), then you should install the latest
version of R (2.12.1). It's always a good thing, even more if you're
starting.
Ivan
Le 1/19/2011 01:27, Ben Harrison a écrit :
Thanks for the reply Peter.
On 18 January 2011 22:52, Peter Ehlers wrote:
Since you don't
On Jan 18, 2011, at 7:32 PM, Ben Harrison wrote:
On 18 January 2011 22:52, Peter Ehlers wrote:
Since you don't provide data, let's borrow from the
help(droplevels) page:
As an aside, is it normal practice then to attach data files to
questions on
this mailing list? I might do that in f
On 18 January 2011 22:52, Peter Ehlers wrote:
> Since you don't provide data, let's borrow from the
> help(droplevels) page:
>
As an aside, is it normal practice then to attach data files to questions on
this mailing list? I might do that in future if it's possible and
acceptable.
Ben.
Dennis, thank you for the response!
Sorry for lack of clarity, I'll explain a little more below...
> plot(Depth[LithClass=='sand'], Conductivity[LithClass=='sand'])
>> (ad nauseum... how can I loop through them all?)
>>
>
I have several lithology classes - sand, clay, limestone, etc... I wish to
p
Thanks for the reply Peter.
On 18 January 2011 22:52, Peter Ehlers wrote:
> Since you don't provide data, let's borrow from the
> help(droplevels) page:
>
I had no joy with my R install finding droplevels exactly, but found this
instead:
> ??droplevels
gdata::drop.levels Drop unused factor
On 2011-01-17 22:48, Ben Harrison wrote:
hello, I am very new to R.
My current data set is a mix of values and categories. It is a geoscience
data set, with values per rock sample. Case in point, each sample belongs to
a lithology class, and each sample has several physical property
measurements
Hi:
Your intention isn't crystal clear to me, but I'll give it a shot...
On Mon, Jan 17, 2011 at 10:48 PM, Ben Harrison <
b.harris...@pgrad.unimelb.edu.au> wrote:
> hello, I am very new to R.
> My current data set is a mix of values and categories. It is a geoscience
> data set, with values per
Hi,
First a good tip when you ask on the R list is to provide data in a way
that we can readily use it. I think the best way to do it is to copy the
output of dput(tc) into the email you write.
There might be better ways to do what you want, but here is what I would do:
#first subset what yo
hello, I am very new to R.
My current data set is a mix of values and categories. It is a geoscience
data set, with values per rock sample. Case in point, each sample belongs to
a lithology class, and each sample has several physical property
measurements (density, porosity...).
I want to be able
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