Displaying 9 results from an estimated 9 matches for "sdmtools".
2011 Jul 18
1
SDMTools package - calculating overlap?
...rea? The problem with 'Istat' function is also that it requires both data sets to have the same length, while I would be more interested in a function that enables overlap calculation even if data sets have different length. Looking forward to hearing from you! Have a good day. Ana
library(SDMTools)
a <- matrix(runif(30))
b <- matrix(runif(30))
Istat(a,b)
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2011 Dec 19
2
fractal image analysis
Dear all
I tried to find some packages (or programs) for image analysis and
especially fractal dimension image analysis but so far I had not success.
It shall be used for particle surface layer analysis from TEM images.
Any suggestions?
Best regards
Petr
2016 Apr 27
1
Determine if a set of x and y-latitude points are inside of a polygon using R
...those points are in one of several
polygons, as my code overwrites the result.
To accomplish this I am using the R-built in function called
point.in.polygon. Point.in.polygon takes the x, and y lat/lon points,
and the polygon boundaries.
Here is the code I've written thus far:
require("SDMTools")
require("sp")
#b is the polygon that I'm referring
for (b in 1:9)
{
D <- subset(Bounds, Polygon == b)
for (i in 1:length(Bounds$latitude))
{
M = point.in.polygon(Bounds$latitude[i], Bounds$longitude[i], D$PY,D$PX)
if (M>1) {
Bounds$T[i]...
2011 Nov 18
1
Delete Rows Dynamically Within a Loop
...f this non empty cells, I have to find
and keep only a maximum of 10 Male-Female pairs that are within 3 meters
from each other. The 3-meter buffer can be done using the "disc" function
within spatstat. To select points falling inside a buffer you can use the
method pnt.in.poly within the SDMTools package. All that because pixels have
a maximum capacity that cannot be exceeded. Since in each cell there can be
hundreds or thousands of points I am trying to find a smart way to use
another loop/similar method to:
1)go trough each point at a time 2)create a buffer a select points with
different...
2012 Mar 11
0
[R-sig-eco] Landscape ecology in R
...hough
you sent your reply just to me, so that others may contribute.
On Fri, Mar 9, 2012 at 6:27 PM, Manuel Sp?nola <mspinola10 at gmail.com> wrote:
> Thank you Sarah,
>
> I am thinking more on?habitat mapping and landscape metrics.
Then you've probably seen the adehabitat* and SDMTools packages.
> I have been using several packages but I would like to see something more
> integrated for teaching. ?It appear that there is a landscape package but I
> am trying to see where can I download it.
The "R Way" is to have many special-purpose packages: task views are v...
2009 Dec 13
3
CRAN (and crantastic) updates this week
CRAN (and crantastic) updates this week
New packages
------------
* Bergm (1.0)
Alberto Caimo
http://crantastic.org/packages/Bergm
Functions implementing Bayesian estimation for exponential random
graph models via exchange algorithm
Updated packages
----------------
lmtest (0.9-26), logcondens (1.3.5), MTSKNN (0.0-4), pmml (1.2.21),
r2lUniv (0.9.4), rattle (2.5.11), rgdal (0.6-23),
2012 May 20
1
CRAN (and crantastic) updates this week
...IC (1.0), QUIC (1.1),
RcmdrPlugin.KMggplot2 (0.1-0), RcmdrPlugin.survival (1.0-1), RcppSMC
(0.1.1), relsurv (2.0-2), rfishbase (0.0-9), Rmpfr (0.4-7),
robCompositions (1.6.0), robustbase (0.9-1), rpartOrdinal (2.0.4),
RProtoBuf (0.2.4), rrBLUP (3.8), rredis (1.6.6), RSEIS (3.0-6),
sampSurf (0.6-4), SDMTools (1.1-12), secr (2.3.2), SemiParBIVProbit
(3.2-1), semPLS (1.0-8), spatstat (1.27-0), tclust (1.1-02), timsac
(1.2.7), tm.plugin.mail (0.0-5), WMTregions (3.2.5)
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Like it? Hate it? Please let us know: cranatic at gma...
2012 Apr 15
6
CRAN (and crantastic) updates this week
...(0.3-1), QCA (1.0-1), QCA3
(0.0-5), quantreg (4.79), Rcmdr (1.8-4), RcppArmadillo (0.3.0.1),
RcppArmadillo (0.3.0), RcppDE (0.1.1), RDieHarder (0.1.2), rEMM
(1.0-5), reweight (1.2.1), rockchalk (1.5.4), rrBLUP (3.7), rrcovNA
(0.4-03), RRF (1.2), RXMCDA (1.4.2), scriptests (1.0-9), sdcMicro
(3.1.1), SDMTools (1.1-11), seewave (1.6.3), sem (3.0-0), SGP
(0.9-0.0), SkewHyperbolic (0.3-1), SpatialTools (0.3.5), sphet
(1.1-12), splus2R (1.1-1), STAR (0.3-5), tmvtnorm (1.4-6), track
(1.0-15), VarianceGamma (0.3-1), VBmix (0.2.7), verification (1.32),
VGAM (0.8-7), vines (1.0.4), x12 (1.0-1)
This email pro...
2010 Jul 18
6
CRAN (and crantastic) updates this week
...e (0.6-1), RSiena (1.0.11.110), Rsolnp
(1.0-4), RSQLite (0.9-1), rstream (1.2.5), Rsymphony (0.1-11), rtv
(0.4.0), runjags (0.9.7-1), Runuran (0.14.0), Rvmmin (0.92),
samplesize (0.1-7), samr (1.28), sapa (1.0-3), scaleboot (0.3-3),
sciplot (1.0-7), scout (1.0.2), scrime (1.2.0), sdcTable (0.0.12),
SDMTools (1.1), seacarb (2.3.4), seas (0.3-9), seewave (1.5.8),
segclust (0.76), segmented (0.2-7.1), SEL (1.0-2), sem (0.9-20),
sendplot (3.8.6), seqinr (2.0-9), seriation (1.0-2), sets (1.0-6),
simFrame (0.2), simone (1.0-0), simPopulation (0.1.2), SIS (0.5),
SiZer (0.1-2), skmeans (0.1-5), slam (0.1-13),...