R/ft2miles.R

In GISTools: Some further GIS capabilities for R

Defines functions ft2miles miles2ft ft2km km2ft

Documented in ft2km ft2miles km2ft miles2ft

ft2miles <- 
function(x) x/5280

miles2ft <-
function(x) x*5280

ft2km <-
function(x) x/3280.839895

km2ft <-
function(x) x*3280.839895

add.alpha <- 
function (hex.color.list,alpha) sprintf("%s%02X",hex.color.list,floor(alpha*256))

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