> mildly skewed in distribution? I have large sample sizes for all of my
> datasets, and the variables are continuous.
>
> That would pretty much cover all of my questions concerning this!
>
> Thank you, once again, for your time!
>
> -Original Message-
> Fro
gt; Pearson correlation coefficient, since both x and y variables are
> quantitative. Does that make sense?
>
> Thanks again,
>
>
> -Original Message-
> From: Greg Snow <538...@gmail.com>
> To: rain1290
> Cc: r-sig-geo
> Sent: Wed, Oct 23, 2019 1
Note that the normality assumptions are about the residuals (or about
y conditional on x), not on the x variable(s) or all of y
(non-conditional). If x is highly skewed and the residuals are normal
then diagnostics just on y will also show skewness (if there is a
relationship between x and y).
Nuno,
Does rasterVIS use base or grid graphics?
The place I usually see the error that plot.new has not been called yet is
when trying to use a base graphics function to augment a plot created using
grid graphics. I suspect that the plot created used grid graphics and that
is why abline is not
The combination of the sp and maptools packages will read in
shapefiles and plot them, you just need to find a shapefile that has
the countries that you are interested in (google for shape files,
there are a lot of free ones available, I have not checked for the
countries you specified, but I
What have you tried so far?
Do you want base graphics? lattice graphics? gglot2 graphics? or any of them?
I would probably start with the sp and maptools packages, but there
are other tools listed in the spatial task view that may help as well.
You are more likely to receive useful help if you
Look at the spsample function in the sp package. If you can convert the
information on your contour(s) into a spatial line object, then spsample
can help with choosing random points along that line/contour. That may
accomplish what you want.
On Wed, Oct 9, 2013 at 5:32 AM, Seth Bigelow
Use the list.files function to get a list of your file names, save that in
a variable, then use lapply or a loop to run your above code for each
filename. The sub function is one option for changing the input filename
to the output filename.
On Mon, Sep 16, 2013 at 11:06 AM, Eddie Smith
?
On Mon, Sep 16, 2013 at 6:09 PM, Greg Snow 538...@gmail.com wrote:
Use the list.files function to get a list of your file names, save that
in a variable, then use lapply or a loop to run your above code for each
filename. The sub function is one option for changing the input filename
Here is an example using the subplot function:
library(TeachingDemos)
library(maptools)
data(wrld_simpl)
plot(wrld_simpl,border=NA,col='blue',axes=TRUE, xlim=c(100,130),
ylim=c(-40,30))
tmp - subplot(
plot(wrld_simpl,border=NA,col='green',bg='white',axes=FALSE),
'bottomleft', size=c(2,1),
step is the same but by visualizing a surface
any suggestion?
best
paolo
--
*Da:* Greg Snow [538...@gmail.com]
*Inviato:* giovedì 11 luglio 2013 22.27
*A:* Paolo Piras
*Cc:* r-sig-geo@r-project.org
*Oggetto:* Re: [R-sig-Geo] R or R studio 3d manipulate
?
Anyway...thanks a lot!!
Awaiting an answer from you I will try to play with TeachinDemos more
accurately
best regards
Paolo
--
*Da:* Greg Snow [538...@gmail.com]
*Inviato:* lunedì 8 luglio 2013 17.53
*A:* Paolo Piras
*Cc:* r-sig-geo@r-project.org
*Oggetto
If you can write a function that takes the arguments that you want to
change and creates the graph you want to see, then there are several tools
that can be used to create controls that will change those arguments. The
`tkexamp` function in the TeachingDemos package is one such tool, but there
The dists variable represents the distance between the points and the
circle measured along the radius of the circle. Positive distances mean
that the point/vertex is inside the circle and negative distances mean that
the point is outside of the circle. Without some type of penalty the
optimal
One possibility would be to define a spatial polygon that represents
the entire plotting area, then use the gDifference function from the
rgeos package to create a map that excludes the land areas (or
whatever you don't want to cover) and add the resulting polygon(s).
On Thu, Sep 13, 2012 at 8:04
You could try something like:
library(rgdal)
library(sp)
scot_BNG - readOGR(dsn=dsn, layer=scot_BNG)
plot(scot_BNG)
tmp - SpatialPoints(locator(1))
proj4string(tmp) - proj4string(scot_BNG)
over(tmp, scot_BNG)
# or
tmp2 - over(scot_BNG, tmp)
plot( scot_BNG[!is.na(tmp2),], add=TRUE, col='green')
maptools?
Thanks,
Ty
On Aug 16, 2012, at 6:33 PM, Greg Snow wrote:
You could try something like:
library(rgdal)
library(sp)
scot_BNG - readOGR(dsn=dsn, layer=scot_BNG)
plot(scot_BNG)
tmp - SpatialPoints(locator(1))
proj4string(tmp) - proj4string(scot_BNG)
over(tmp, scot_BNG)
# or
tmp2
, the output plots to Quartz, which doesn't seem to have a pan function
and the zoom function is very very limited.
Thanks!
Ty
On Aug 16, 2012, at 7:30 PM, Greg Snow wrote:
My example used locator(1) to get one click, but if you just use
locator() (without the 1) then you can click in as many
A couple of options:
Use the paste or sprintf functions to create your file names vector.
This works if you want all combinations, or a very specific set of
names.
Use list.files to get the list of all the file names in the
folder/directory, then use the grep function to extract just the files
This is not an answer to the spplot question, but if your main goal is to plot
your own data on top of google map tiles, then you may want to consider using
the RgoogleMaps package which does exactly that.
--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
In the TeachingDemos package there are 3 datasets 'ccc', 'h2h', and 'towork'
which are real, not overly large (but you can decide if they are small or not)
which contain lat, long, and other variables.
--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
You need the gridBase package (for combining grid and base graphics).
--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.s...@imail.org
801.408.8111
-Original Message-
From: r-sig-geo-boun...@r-project.org [mailto:r-sig-geo-bounces@r-
project.org]
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