search for: basin_curv

Displaying 1 result from an estimated 1 matches for "basin_curv".

2007 Mar 27
1
"Groups" in XYPLOT
..., sep=",", col.names=TRUE, row.names=TRUE, quote=TRUE, na="NA") ##########coastal_curvature #needs the maptools package to read ESRI grid require(maptools) #import the curvature grid basin.map <- readAsciiGrid("C:/R_PLots/coastal_crv.asc", colname="curv") basin_curv <- (basin.map$curv) #read the curvs into a dataframe freqs<-as.data.frame(table(basin_curv)) #rank the frequencies based on each unique occerence, note, ranks from 1 to n r<-rank(freqs$basin_curv) n<-length(r) #determing the probability, n+1 insures there is no 100%, 1- reverses the ord...