# hcell2xy

0th

Percentile

##### Compute X and Y Coordinates for Hexagon Cells

Computes x and y coordinates from hexagon cell id's.

Keywords
manip
##### Usage
hcell2xy(hbin, check.erosion = TRUE)
##### Arguments
hbin
a object of class "hexbin", typically produced by hexbin(*).
check.erosion
logical indicating if only the eroded points should be returned in the case where hbin inherits from "erodebin" (see erodebin-class); is TRUE by def
##### Details

The hexbin object hbin contains all the needed information. The purpose of this function is to reduce storage. The cost is additional calculation.

• A list with two components of the same length as bin$cell, • x • y ##### See Also hexbin. ##### Aliases • hcell2xy • hcell2xy,hexbin-method ##### Examples x <- rnorm(10000) y <- rnorm(10000) plot(x,y, pch=".") hbin <- hexbin(x,y) str(xys <- hcell2xy(hbin)) points(xys, cex=1.5, col=2) ; title("hcell2xy( hexbin(..) )", col.main=2)## Temporal trends with confidence bounds plotted on a map: ## <NOT YET> Illustration only pending access to user functions ## mtapply() # like tapply but for matrices ## sens.season.slope() # computes sen's seasonal slope ## This part does not work and commented out #hbin <- hcell(dat$x,dat$y) # x and y are in map projection units #newdat < dat[,c('month','year','value')] # extract columns #stats <- mtapply(newdat,bin$cell,sens.season.slope,season=12)
#plot(mymap,type='l')       # map boundaries in map projection units
#xy <- hcell2xy(hbin)  # x and y coordinates for hexagon cell centers
#hray(xy$x, xy$y,val=stat[,1],lower= stat[,2],upper=stat[,3])
Documentation reproduced from package hexbin, version 1.26.3, License: GPL-2

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