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<DIV> </DIV>
<DIV>Hi once again,</DIV>
<DIV>Now i have been trying to run the R changed example from
Maptools package manual, and errors occur underlined bellow. It is really
troublesome....</DIV>
<DIV>Please assist,</DIV>
<DIV>Orlando.</DIV>
<DIV>---------------------------------------------------</DIV>
<DIV>shp <- try(library(shapefiles)) <BR><U>Error in
library(maptools) : There is no package called 'shapefiles'<BR></U>> if
(class(shp) != "try-error") {<BR>+ ShapeDir <- system.file("shapes",
package="maptools")[1]<BR>+ try1 <- read.shapefile(paste(ShapeDir,
"shapes", sep="/"))<BR>+ shppolys <- shape2poly(try1,
as.character(try1$dbf$dbf$NEIGNO))<BR>+ plotpolys(shppolys)<BR>+
title(main="Polygons for Vermani from shapefiles package")<BR>+
}<BR>> <BR>> try2 <-
read.shape(system.file("shapes/Vermani.shp",<BR>+
package="maptools/man")[1])<BR><U>Error: couldn't find function
"read.shape"<BR></U>> mappolys <- Map2poly(try2,
as.character(try2$att.data$NEIGNO))<BR><U>Error: couldn't find function
"Map2poly"<BR></U>> plotpolys(mappolys)<BR><U>Error: couldn't find
function "plotpolys"<BR></U>> title(main="Polygons
for Vermani from maptools package")<BR>Error in title(main =
"Polygons for Vermani from maptools package") :
<BR> plot.new has not been
called yet<BR>> if (class(shp) != "try-error") {<BR>+
plotpolys(shppolys)<BR>+ plotpolys(mappolys, add=TRUE, border="red",
lty="dotted")<BR>+ title(main="Polygons for Vermani overplotted
from both packages")<BR>+ }</DIV>
<DIV>------------------------------------------------------<BR></DIV></TD></TR>
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