Re: [R] "Groups" in XYPLOT
Much nicer, thanks, Thomas. I've made a small change to make the differences more obvious for this example. #First dataset N <- 25 x <- round(rnorm(N),2) y <- round(rnorm(N),2) df.1 <- data.frame(x = x, y = y) #Plot it xyplot(x~y,xlab="Test 1 Data",ylab="P(A>A*)", data=df.1) #Second Dataset N <- 20 x <- round(rnorm(N),2) + 10 y <- round(rnorm(N),2) df.2 <- data.frame(x = x, y = y) #How to get this in the same panel as plot 1? xyplot(x~y,xlab="Test 2 Data",ylab="P(A>A*)", data=df.2) df <- make.groups(df.1, df.2) ## Thanks, Deepayan! xyplot(x~y, groups=which, xlab="All Test Data", ylab="P(A>A*)", auto.key=list(space="right"), data=df) Cheers Andrew On Sat, Mar 17, 2007 at 11:48:05PM -0500, Thomas Colson wrote: > Sorry 'bout that. > > Here's about as simple as I can get it: > > #First dataset > N <- 25 > x <- round(rnorm(N),2) > y <- round(rnorm(N),2) > df <- data.frame(x = x, y = y) > #Plot it > xyplot(df$x~df$y,xlab="Test 1 Data",ylab="P(A>A*)") > > #Second Dataset > N <- 20 > x <- round(rnorm(N),2) > y <- round(rnorm(N),2) > df <- data.frame(x = x, y = y) > #How to get this in the same panel as plot 1? > xyplot(df$x~df$y,xlab="Test 2 Data",ylab="P(A>A*)") > > > > > As far as combining that data into one datasetI'm trying to plot both > datasets into one panel to show the differences in the plots of the > two...utilizing the coloring/symbology funtions...wouldn't combining them > null that capability? > > Thanks for your replies! > > > Thomas Colson, PhD > North Carolina State University > Department of Forestry and Environmental Resources > (919)673-8023 > [EMAIL PROTECTED] > > Schedule: www4.ncsu.edu/~tpcolson > -Original Message- > From: Andrew Robinson [mailto:[EMAIL PROTECTED] > Sent: Saturday, March 17, 2007 10:44 PM > To: Thomas Colson > Cc: r-help@stat.math.ethz.ch > Subject: Re: [R] "Groups" in XYPLOT > > Hi again Thomas, > > ah, sorry, I should be more precise. Please construct a reproducible worked > example that does not require us to download 7 Mb of data. You might also > try the suggestions that I made and let us know if they worked for you. > > Cheers > > Andrew > > On Sat, Mar 17, 2007 at 10:37:46PM -0500, Thomas Colson wrote: > > Thanks for the warning: > > Here is the link to the datasets, rather large at 2 and 5 mb. Another > > note is that one set has more datapoints than the other, don't know if > > this can be done with xyplot. > > http://www4.ncsu.edu/~tpcolson/coastcurvfreqs.txt > > http://www4.ncsu.edu/~tpcolson/coastslopefreqs.txt > > > > Thomas Colson, PhD > > North Carolina State University > > Department of Forestry and Environmental Resources > > (919)673-8023 > > [EMAIL PROTECTED] > > > > Schedule: www4.ncsu.edu/~tpcolson > > -Original Message- > > From: Andrew Robinson [mailto:[EMAIL PROTECTED] > > Sent: Saturday, March 17, 2007 10:15 PM > > To: Thomas Colson > > Cc: r-help@stat.math.ethz.ch > > Subject: Re: [R] "Groups" in XYPLOT > > > > Hi Thomas, > > > > sadly, the full code is not much help to us in the absence of the > > data. Can I suggest that you construct a reproducible worked example > > to help explain your question? For what it's worth I suspect that the > > answer is that you need to join these datasets into one and theneitehr > > use the groups argument, or the "+" protocol on the LHS of the plot > formula. > > > > Cheers > > > > Andrew > > > > On Tue, Mar 27, 2007 at 04:51:55PM -0500, Thomas Colson wrote: > > > I'm not sure I'm barking up the right tree here, but would I need to > > > make use of groups to plot two separate datasets within ONE panel in > > > xyplot? The desired end result is a single xy plot of two separate > > > (but similar in values and ranges). > > > > > > Full code follows, xyplot code at bottom > > > > > > > > > > > > > > > > > > #Determine Frequencies > > > ##coastal_slope > > > #needs the maptools package to read ESRI grid > > > require(maptools) > > > #import the flow slope grid > > > basin.map <- readAsciiGrid("C:/R_PLots/coastal_slp.asc", > > > colname="slope") basin_slope <- (basin.map$slope)
Re: [R] "Groups" in XYPLOT
The make.groups function did the trick. Thank you so much for the seemingly obvious solution! piedfac <- read.table("C:/R_PLots/piedmontfacfreqs.txt", header=TRUE, sep=",", na.strings="NA", dec=".", strip.white=TRUE) coastfac <- read.table("C:/R_PLots/coastalfacfreqs.txt", header=TRUE, sep=",", na.strings="NA", dec=".", strip.white=TRUE) fac<-make.groups(piedfac,coastfac) xyplot(fac$rank.PRank~fac$basin_area,groups=fac$which,scales=list(y=list(log =TRUE,at=c(.0001,.001,.01,.1,1)),x=list(log=TRUE,at=c(10,100,1000,1,1000 00,100))),xlab="Drainage Area m^2",ylab="P(A>A*)") Thomas Colson, PhD North Carolina State University Department of Forestry and Environmental Resources (919)673-8023 [EMAIL PROTECTED] Schedule: www4.ncsu.edu/~tpcolson -Original Message- From: Deepayan Sarkar [mailto:[EMAIL PROTECTED] Sent: Saturday, March 17, 2007 11:19 PM To: Thomas Colson Cc: r-help@stat.math.ethz.ch Subject: Re: [R] "Groups" in XYPLOT On 3/17/07, Thomas Colson <[EMAIL PROTECTED]> wrote: > Thanks for the warning: > Here is the link to the datasets, rather large at 2 and 5 mb. Another > note is that one set has more datapoints than the other, don't know if > this can be done with xyplot. As long as the two datasets have the same column name, you should be able to use the 'make.groups' function to combine them. The resulting data frame should have a column called 'which' identifying the origin. Deepayan __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] "Groups" in XYPLOT
Sorry 'bout that. Here's about as simple as I can get it: #First dataset N <- 25 x <- round(rnorm(N),2) y <- round(rnorm(N),2) df <- data.frame(x = x, y = y) #Plot it xyplot(df$x~df$y,xlab="Test 1 Data",ylab="P(A>A*)") #Second Dataset N <- 20 x <- round(rnorm(N),2) y <- round(rnorm(N),2) df <- data.frame(x = x, y = y) #How to get this in the same panel as plot 1? xyplot(df$x~df$y,xlab="Test 2 Data",ylab="P(A>A*)") As far as combining that data into one datasetI'm trying to plot both datasets into one panel to show the differences in the plots of the two...utilizing the coloring/symbology funtions...wouldn't combining them null that capability? Thanks for your replies! Thomas Colson, PhD North Carolina State University Department of Forestry and Environmental Resources (919)673-8023 [EMAIL PROTECTED] Schedule: www4.ncsu.edu/~tpcolson -Original Message- From: Andrew Robinson [mailto:[EMAIL PROTECTED] Sent: Saturday, March 17, 2007 10:44 PM To: Thomas Colson Cc: r-help@stat.math.ethz.ch Subject: Re: [R] "Groups" in XYPLOT Hi again Thomas, ah, sorry, I should be more precise. Please construct a reproducible worked example that does not require us to download 7 Mb of data. You might also try the suggestions that I made and let us know if they worked for you. Cheers Andrew On Sat, Mar 17, 2007 at 10:37:46PM -0500, Thomas Colson wrote: > Thanks for the warning: > Here is the link to the datasets, rather large at 2 and 5 mb. Another > note is that one set has more datapoints than the other, don't know if > this can be done with xyplot. > http://www4.ncsu.edu/~tpcolson/coastcurvfreqs.txt > http://www4.ncsu.edu/~tpcolson/coastslopefreqs.txt > > Thomas Colson, PhD > North Carolina State University > Department of Forestry and Environmental Resources > (919)673-8023 > [EMAIL PROTECTED] > > Schedule: www4.ncsu.edu/~tpcolson > -Original Message- > From: Andrew Robinson [mailto:[EMAIL PROTECTED] > Sent: Saturday, March 17, 2007 10:15 PM > To: Thomas Colson > Cc: r-help@stat.math.ethz.ch > Subject: Re: [R] "Groups" in XYPLOT > > Hi Thomas, > > sadly, the full code is not much help to us in the absence of the > data. Can I suggest that you construct a reproducible worked example > to help explain your question? For what it's worth I suspect that the > answer is that you need to join these datasets into one and theneitehr > use the groups argument, or the "+" protocol on the LHS of the plot formula. > > Cheers > > Andrew > > On Tue, Mar 27, 2007 at 04:51:55PM -0500, Thomas Colson wrote: > > I'm not sure I'm barking up the right tree here, but would I need to > > make use of groups to plot two separate datasets within ONE panel in > > xyplot? The desired end result is a single xy plot of two separate > > (but similar in values and ranges). > > > > Full code follows, xyplot code at bottom > > > > > > > > > > > > #Determine Frequencies > > ##coastal_slope > > #needs the maptools package to read ESRI grid > > require(maptools) > > #import the flow slope grid > > basin.map <- readAsciiGrid("C:/R_PLots/coastal_slp.asc", > > colname="slope") basin_slope <- (basin.map$slope) #read the slopes > > into a dataframe > > freqs<-as.data.frame(table(basin_slope)) > > #rank the frequencies based on each unique occerence, note, ranks > > from > > 1 to n > > r<-rank(freqs$basin_slope) > > n<-length(r) > > #determing the probability, n+1 insures there is no 100%, 1- > > reverses the order so #low slopes gets high probability of > > exceedence z<-cbind(Rank = r, PRank = 1-(r/(n+1))) #attach the > > probability to the table, result is high prob of exceed is in row > > with low slope #and low probabibility is in row with high slope > > freqs$rank<-z write.table(freqs, "C:/R_PLots/coastslopefreqs.txt", > > sep=",", col.names=TRUE, row.names=TRUE, quote=TRUE, na="NA") > > > > ##coastal_curvature > > #needs the maptools package to read ESRI grid > > require(maptools) > > #import the curvature grid > > basin.map <- readAsciiGrid("C:/R_PLots/coastal_crv.asc", > > colname="curv") basin_curv <- (basin.map$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) &g
Re: [R] "Groups" in XYPLOT
On 3/17/07, Thomas Colson <[EMAIL PROTECTED]> wrote: > Thanks for the warning: > Here is the link to the datasets, rather large at 2 and 5 mb. Another note > is that one set has more datapoints than the other, don't know if this can > be done with xyplot. As long as the two datasets have the same column name, you should be able to use the 'make.groups' function to combine them. The resulting data frame should have a column called 'which' identifying the origin. Deepayan __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] "Groups" in XYPLOT
Hi again Thomas, ah, sorry, I should be more precise. Please construct a reproducible worked example that does not require us to download 7 Mb of data. You might also try the suggestions that I made and let us know if they worked for you. Cheers Andrew On Sat, Mar 17, 2007 at 10:37:46PM -0500, Thomas Colson wrote: > Thanks for the warning: > Here is the link to the datasets, rather large at 2 and 5 mb. Another note > is that one set has more datapoints than the other, don't know if this can > be done with xyplot. > http://www4.ncsu.edu/~tpcolson/coastcurvfreqs.txt > http://www4.ncsu.edu/~tpcolson/coastslopefreqs.txt > > Thomas Colson, PhD > North Carolina State University > Department of Forestry and Environmental Resources > (919)673-8023 > [EMAIL PROTECTED] > > Schedule: www4.ncsu.edu/~tpcolson > -Original Message- > From: Andrew Robinson [mailto:[EMAIL PROTECTED] > Sent: Saturday, March 17, 2007 10:15 PM > To: Thomas Colson > Cc: r-help@stat.math.ethz.ch > Subject: Re: [R] "Groups" in XYPLOT > > Hi Thomas, > > sadly, the full code is not much help to us in the absence of the data. Can > I suggest that you construct a reproducible worked example to help explain > your question? For what it's worth I suspect that the answer is that you > need to join these datasets into one and theneitehr use the groups argument, > or the "+" protocol on the LHS of the plot formula. > > Cheers > > Andrew > > On Tue, Mar 27, 2007 at 04:51:55PM -0500, Thomas Colson wrote: > > I'm not sure I'm barking up the right tree here, but would I need to > > make use of groups to plot two separate datasets within ONE panel in > > xyplot? The desired end result is a single xy plot of two separate > > (but similar in values and ranges). > > > > Full code follows, xyplot code at bottom > > > > > > > > > > > > #Determine Frequencies > > ##coastal_slope > > #needs the maptools package to read ESRI grid > > require(maptools) > > #import the flow slope grid > > basin.map <- readAsciiGrid("C:/R_PLots/coastal_slp.asc", > > colname="slope") basin_slope <- (basin.map$slope) #read the slopes > > into a dataframe > > freqs<-as.data.frame(table(basin_slope)) > > #rank the frequencies based on each unique occerence, note, ranks from > > 1 to n > > r<-rank(freqs$basin_slope) > > n<-length(r) > > #determing the probability, n+1 insures there is no 100%, 1- reverses > > the order so #low slopes gets high probability of exceedence > > z<-cbind(Rank = r, PRank = 1-(r/(n+1))) #attach the probability to the > > table, result is high prob of exceed is in row with low slope #and low > > probabibility is in row with high slope freqs$rank<-z > > write.table(freqs, "C:/R_PLots/coastslopefreqs.txt", 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 order so #low curvature gets high probability of exceedence > > z<-cbind(Rank = r, PRank = 1-(r/(n+1))) #attach the probability to the > > table, result is high prob of exceed is in row with low curv #and low > > probabibility is in row with high curv freqs$rank<-z > > write.table(freqs, "C:/R_PLots/coastcurvfreqs.txt", sep=",", > > col.names=TRUE, row.names=TRUE, quote=TRUE, na="NA") > > > > > > > > > > > > ##Make XYPLOT and export to ps coastcurv <- > > read.table("C:/R_PLots/coastcurvfreqs.txt", header=TRUE, sep=",", > > na.strings="NA", dec=".", strip.white=TRUE) > > xyplot(coastcurv$rank.PRank~coastcurv$basin_curv,scales=list(y=list(lo > > g=TRUE > > ,at=c(.0001,.001,.01,.1,1)),x=list(log=TRUE,at=c(0.0001,0.001,0.01,0.1 > > ,1,10) > > )),xlab="Curvature",ylab="P(C>C*)") > > dev.copy2eps(file="C:/R_PLots/coastcurv_cad.eps",
Re: [R] "Groups" in XYPLOT
Thanks for the warning: Here is the link to the datasets, rather large at 2 and 5 mb. Another note is that one set has more datapoints than the other, don't know if this can be done with xyplot. http://www4.ncsu.edu/~tpcolson/coastcurvfreqs.txt http://www4.ncsu.edu/~tpcolson/coastslopefreqs.txt Thomas Colson, PhD North Carolina State University Department of Forestry and Environmental Resources (919)673-8023 [EMAIL PROTECTED] Schedule: www4.ncsu.edu/~tpcolson -Original Message- From: Andrew Robinson [mailto:[EMAIL PROTECTED] Sent: Saturday, March 17, 2007 10:15 PM To: Thomas Colson Cc: r-help@stat.math.ethz.ch Subject: Re: [R] "Groups" in XYPLOT Hi Thomas, sadly, the full code is not much help to us in the absence of the data. Can I suggest that you construct a reproducible worked example to help explain your question? For what it's worth I suspect that the answer is that you need to join these datasets into one and theneitehr use the groups argument, or the "+" protocol on the LHS of the plot formula. Cheers Andrew On Tue, Mar 27, 2007 at 04:51:55PM -0500, Thomas Colson wrote: > I'm not sure I'm barking up the right tree here, but would I need to > make use of groups to plot two separate datasets within ONE panel in > xyplot? The desired end result is a single xy plot of two separate > (but similar in values and ranges). > > Full code follows, xyplot code at bottom > > > > > > #Determine Frequencies > ##coastal_slope > #needs the maptools package to read ESRI grid > require(maptools) > #import the flow slope grid > basin.map <- readAsciiGrid("C:/R_PLots/coastal_slp.asc", > colname="slope") basin_slope <- (basin.map$slope) #read the slopes > into a dataframe > freqs<-as.data.frame(table(basin_slope)) > #rank the frequencies based on each unique occerence, note, ranks from > 1 to n > r<-rank(freqs$basin_slope) > n<-length(r) > #determing the probability, n+1 insures there is no 100%, 1- reverses > the order so #low slopes gets high probability of exceedence > z<-cbind(Rank = r, PRank = 1-(r/(n+1))) #attach the probability to the > table, result is high prob of exceed is in row with low slope #and low > probabibility is in row with high slope freqs$rank<-z > write.table(freqs, "C:/R_PLots/coastslopefreqs.txt", 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 order so #low curvature gets high probability of exceedence > z<-cbind(Rank = r, PRank = 1-(r/(n+1))) #attach the probability to the > table, result is high prob of exceed is in row with low curv #and low > probabibility is in row with high curv freqs$rank<-z > write.table(freqs, "C:/R_PLots/coastcurvfreqs.txt", sep=",", > col.names=TRUE, row.names=TRUE, quote=TRUE, na="NA") > > > > > > ##Make XYPLOT and export to ps coastcurv <- > read.table("C:/R_PLots/coastcurvfreqs.txt", header=TRUE, sep=",", > na.strings="NA", dec=".", strip.white=TRUE) > xyplot(coastcurv$rank.PRank~coastcurv$basin_curv,scales=list(y=list(lo > g=TRUE > ,at=c(.0001,.001,.01,.1,1)),x=list(log=TRUE,at=c(0.0001,0.001,0.01,0.1 > ,1,10) > )),xlab="Curvature",ylab="P(C>C*)") > dev.copy2eps(file="C:/R_PLots/coastcurv_cad.eps", width=8.0, > height=8.0, > pointsize=10) > > > How to get this in the first plot graphic? > > coastslope <- read.table("C:/R_PLots/coastslopefreqs.txt", > header=TRUE, sep=",", na.strings="NA", dec=".", strip.white=TRUE) > xyplot(coastslope$rank.PRank~coastslope$basin_slope,scales=list(y=list > (log=T > RUE,at=c(.0001,.001,.01,.1,1)),x=list(log=TRUE,at=c(0.0001,0.001,0.01, > 0.1,1, > 10))),xlab="Slope",ylab="P(S>S*)") > dev.copy2eps(file="C:/R_PLots/coastslope_cad.eps", width=8.0, > height=8.0, > pointsize=10) > > Thomas Colson, PhD > North Carolina State University > Department of Forestry and Environmental Resources > > _
Re: [R] "Groups" in XYPLOT
Hi Thomas, sadly, the full code is not much help to us in the absence of the data. Can I suggest that you construct a reproducible worked example to help explain your question? For what it's worth I suspect that the answer is that you need to join these datasets into one and theneitehr use the groups argument, or the "+" protocol on the LHS of the plot formula. Cheers Andrew On Tue, Mar 27, 2007 at 04:51:55PM -0500, Thomas Colson wrote: > I'm not sure I'm barking up the right tree here, but would I need to make > use of groups to plot two separate datasets within ONE panel in xyplot? The > desired end result is a single xy plot of two separate (but similar in > values and ranges). > > Full code follows, xyplot code at bottom > > > > > > #Determine Frequencies > ##coastal_slope > #needs the maptools package to read ESRI grid > require(maptools) > #import the flow slope grid > basin.map <- readAsciiGrid("C:/R_PLots/coastal_slp.asc", colname="slope") > basin_slope <- (basin.map$slope) > #read the slopes into a dataframe > freqs<-as.data.frame(table(basin_slope)) > #rank the frequencies based on each unique occerence, note, ranks from 1 to > n > r<-rank(freqs$basin_slope) > n<-length(r) > #determing the probability, n+1 insures there is no 100%, 1- reverses the > order so > #low slopes gets high probability of exceedence > z<-cbind(Rank = r, PRank = 1-(r/(n+1))) > #attach the probability to the table, result is high prob of exceed is in > row with low slope > #and low probabibility is in row with high slope > freqs$rank<-z > write.table(freqs, "C:/R_PLots/coastslopefreqs.txt", 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 > order so > #low curvature gets high probability of exceedence > z<-cbind(Rank = r, PRank = 1-(r/(n+1))) > #attach the probability to the table, result is high prob of exceed is in > row with low curv > #and low probabibility is in row with high curv > freqs$rank<-z > write.table(freqs, "C:/R_PLots/coastcurvfreqs.txt", sep=",", col.names=TRUE, > row.names=TRUE, quote=TRUE, na="NA") > > > > > > ##Make XYPLOT and export to ps > coastcurv <- read.table("C:/R_PLots/coastcurvfreqs.txt", header=TRUE, > sep=",", na.strings="NA", dec=".", strip.white=TRUE) > xyplot(coastcurv$rank.PRank~coastcurv$basin_curv,scales=list(y=list(log=TRUE > ,at=c(.0001,.001,.01,.1,1)),x=list(log=TRUE,at=c(0.0001,0.001,0.01,0.1,1,10) > )),xlab="Curvature",ylab="P(C>C*)") > dev.copy2eps(file="C:/R_PLots/coastcurv_cad.eps", width=8.0, height=8.0, > pointsize=10) > > > How to get this in the first plot graphic? > > coastslope <- read.table("C:/R_PLots/coastslopefreqs.txt", header=TRUE, > sep=",", na.strings="NA", dec=".", strip.white=TRUE) > xyplot(coastslope$rank.PRank~coastslope$basin_slope,scales=list(y=list(log=T > RUE,at=c(.0001,.001,.01,.1,1)),x=list(log=TRUE,at=c(0.0001,0.001,0.01,0.1,1, > 10))),xlab="Slope",ylab="P(S>S*)") > dev.copy2eps(file="C:/R_PLots/coastslope_cad.eps", width=8.0, height=8.0, > pointsize=10) > > Thomas Colson, PhD > North Carolina State University > Department of Forestry and Environmental Resources > > __ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Andrew Robinson Department of Mathematics and StatisticsTel: +61-3-8344-9763 University of Melbourne, VIC 3010 Australia Fax: +61-3-8344-4599 http://www.ms.unimelb.edu.au/~andrewpr http://blogs.mbs.edu/fishing-in-the-bay/ __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.