Displaying 2 results from an estimated 2 matches for "xbreaks".
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2008 Oct 22
1
Spatstat help - quadratcount query
Hi all,
I am using quadratcount in spatstat to divide a window containing a
point pattern into a grid of quadrats containing the intensity of points
in each quadrat. My data is in UTM co-ordinates. My window is defined
as follows:
>p15<-ppp(x,y,window=owin(c(341710,342100),c(3126465,3126780)),marks=NUL
L, checks=TRUE)
Giving me a distance of 390m in the 'x' direction and 315m in
2017 Nov 28
0
Extract all point in a quadrats by spatstat package
Hi,
With the following code i can divides window into quadrats and counts the numbers of points in each quadrat.
library(spatstat)
X <- runifpoint(50)
quadratcount(X)
quadratcount(X, 4, 5)
quadratcount(X, xbreaks=c(0, 0.3, 1), ybreaks=c(0, 0.4, 0.8, 1))
qX <-? quadratcount(X, 4, 5)
plot(X)
plot(qX, add=TRUE)
But I want to mark each? quadrats? and select/ extract only those points by selecting quadrats id .?
Can anyone plese help me regarding this issue ?
Thanks in advance .
Regards.............
Tanvi...