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Peter Maclean

2013-Feb-22 23:15 UTC

[R] Help xyplot

Hi Mackay and anybody
(a) Is it possible to select randomly (let say five grids) and plot?
(b) Is it possible to plot five nearest grid in one figure?
The original question and improved codes:


#I am ploting gridded time series data. I would like the actual lat 
#and lon value appear on the graph-if possible inside the graph as 
#numbers. If there is also more elegant ways to plot the graphs I 
#>will appreciate more suggestions.
#################################
library(ggplot2)
library(lattice)
month <- c("Jan", "Feb", "Mar",
"Apr", "May", "Jun", "Jul",
"Aug", "Sep", "Oct", "Nov",
"Dec")
month <- factor(month, levels = month.abb)
data <- as.data.frame(expand.grid(lon=seq(4,5, 1), lat=seq(-3,-2,1),
year=seq(2010, 2012,1), month=month))
n=nrow(data)
data$prec <- rgamma(n, 2, 0.25)
data$year <- factor(data$year)
data$lon  <- factor(data$lon)
data$lat  <- factor(data$lat)
ndata <- data[order(data$lon, data$lat),]
fix(ndata)
max <- max(ndata$prec, na.rm=TRUE)
min <- min(ndata$prec, na.rm=TRUE)

#Plot the graph and save as pdf by Mackay suggestion
pdf("H:/file.pdf")
library(latticeExtra)
useOuterStrips(
xyplot(prec~month|year*paste(lat,lon), data=ndata,
as.table = T,
type = c("l", "l","p"), ylim=c(min, max),
layout=c(1,4)) )
dev.off()#The actual data have more than 5 thousand data points, Just want to
plot a few
#selected randomly. Also, if I can put 5 data points (nearest grids) in one
graph
#will be more helpful.


Peter Maclean
Department of Economics
UDSM
	[[alternative HTML version deleted]]

Nicole Ford

2013-Feb-23 08:22 UTC

head link

[R] Help xyplot

> The actual data have more than 5 thousand data points, Just want to plot a
few
> #selected randomly. 
Based on this, it seems you're looking to pull a random sample of 5 from
your dataset.

Does this link help?

http://stat.ethz.ch/R-manual/R-patched/library/base/html/sample.html

~Nicole Ford
Ph.D. Student
Graduate Assistant/ Instructor
Department of Government and International Affairs
University of South Florida
office: SOC 012M
e: nmhicks@mail.usf.edu
http://gia.usf.edu/student/nford/

Sent from my iPhone

On Feb 22, 2013, at 6:15 PM, Peter Maclean <pmaclean2011@yahoo.com> wrote:
> Hi Mackay and anybody
> (a) Is it possible to select randomly (let say five grids) and plot?
> (b) Is it possible to plot five nearest grid in one figure?
> The original question and improved codes:
> 
> 
> #I am ploting gridded time series data. I would like the actual lat 
> #and lon value appear on the graph-if possible inside the graph as 
> #numbers. If there is also more elegant ways to plot the graphs I 
> #>will appreciate more suggestions.
> #################################
> library(ggplot2)
> library(lattice)
> month <- c("Jan", "Feb", "Mar",
"Apr", "May", "Jun", "Jul",
> "Aug", "Sep", "Oct", "Nov",
"Dec")
> month <- factor(month, levels = month.abb)
> data <- as.data.frame(expand.grid(lon=seq(4,5, 1), lat=seq(-3,-2,1),
> year=seq(2010, 2012,1), month=month))
> n=nrow(data)
> data$prec <- rgamma(n, 2, 0.25)
> data$year <- factor(data$year)
> data$lon  <- factor(data$lon)
> data$lat  <- factor(data$lat)
> ndata <- data[order(data$lon, data$lat),]
> fix(ndata)
> max <- max(ndata$prec, na.rm=TRUE)
> min <- min(ndata$prec, na.rm=TRUE)
> 
> #Plot the graph and save as pdf by Mackay suggestion
> pdf("H:/file.pdf")
> library(latticeExtra)
> useOuterStrips(
> xyplot(prec~month|year*paste(lat,lon), data=ndata,
> as.table = T,
> type = c("l", "l","p"), ylim=c(min, max),
> layout=c(1,4)) )
> dev.off()#lso, if I can put 5 data points (nearest grids) in one graph
> #will be more helpful.
> 
> 
> Peter Maclean
> Department of Economics
> UDSM
>    [[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help@r-project.org 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.
	[[alternative HTML version deleted]]

Nicole Ford

2013-Feb-23 08:31 UTC

head link

[R] Help xyplot

As to your xyplot question, I found a multiline solution.  (Below)

I am pretty certain there is a multipolt/ graph solution in the effects package
(I haven't used that functionality in some years).


http://r.789695.n4.nabble.com/XYplot-in-Lattice-Package-td878511.html


~Nicole Ford
Ph.D. Student
Graduate Assistant/ Instructor
Department of Government and International Affairs
University of South Florida
office: SOC 012M
e: nmhicks@mail.usf.edu
http://gia.usf.edu/student/nford/

Sent from my iPhone

On Feb 22, 2013, at 6:15 PM, Peter Maclean <pmaclean2011@yahoo.com> wrote:
> Hi Mackay and anybody
> (a) Is it possible to select randomly (let say five grids) and plot?
> (b) Is it possible to plot five nearest grid in one figure?
> The original question and improved codes:
> 
> 
> #I am ploting gridded time series data. I would like the actual lat 
> #and lon value appear on the graph-if possible inside the graph as 
> #numbers. If there is also more elegant ways to plot the graphs I 
> #>will appreciate more suggestions.
> #################################
> library(ggplot2)
> library(lattice)
> month <- c("Jan", "Feb", "Mar",
"Apr", "May", "Jun", "Jul",
> "Aug", "Sep", "Oct", "Nov",
"Dec")
> month <- factor(month, levels = month.abb)
> data <- as.data.frame(expand.grid(lon=seq(4,5, 1), lat=seq(-3,-2,1),
> year=seq(2010, 2012,1), month=month))
> n=nrow(data)
> data$prec <- rgamma(n, 2, 0.25)
> data$year <- factor(data$year)
> data$lon  <- factor(data$lon)
> data$lat  <- factor(data$lat)
> ndata <- data[order(data$lon, data$lat),]
> fix(ndata)
> max <- max(ndata$prec, na.rm=TRUE)
> min <- min(ndata$prec, na.rm=TRUE)
> 
> #Plot the graph and save as pdf by Mackay suggestion
> pdf("H:/file.pdf")
> library(latticeExtra)
> useOuterStrips(
> xyplot(prec~month|year*paste(lat,lon), data=ndata,
> as.table = T,
> type = c("l", "l","p"), ylim=c(min, max),
> layout=c(1,4)) )
> dev.off()#The actual data have more than 5 thousand data points, Just want
to plot a few
> #selected randomly. Also, if I can put 5 data points (nearest grids) in one
graph
> #will be more helpful.
> 
> 
> Peter Maclean
> Department of Economics
> UDSM
>    [[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help@r-project.org 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.
	[[alternative HTML version deleted]]

Duncan Mackay

2013-Feb-23 12:45 UTC

head link

[R] Help xyplot

Hi Peter

Try the 2 examples below - it may give you some ideas

useOuterStrips(strip      = 
strip.custom(factor.levels = paste("Year", c(2010:2012)),
                                          par.strip.text = list(cex = 0.75)),
                strip.left = 
strip.custom(factor.levels = paste("Lat.", 
rep(c(3,2) ,each = 2), "? S, Long.", rep(5:4, 2), "? W"),
                                          par.strip.text = list(cex = 0.75)),
xyplot(prec~month|year*paste(lat,lon), data=ndata,
        as.table = T,
        scales   = list(x = list(alternating = FALSE,
                                 relation    = "same",
                                 rot         = 60),
                        y = list(alternating = FALSE,
                                 relation    = "same",
                                 rot         = 0)
                    ),
        ylim=c(min, max),
        type     = c("b"),
        col      = 1
)  # xyplot **
) ## useOuterStrips

useOuterStrips(strip      = 
strip.custom(factor.levels = paste("Year", c(2010:2012)),
                                          par.strip.text = list(cex = 0.75)),
                strip.left = FALSE,
xyplot(prec~month|year*paste(lat,lon), data=ndata,
        as.table = T,

        scales   = list(x = list(alternating = FALSE,
                                 relation    = "same",
                                 rot         = 60),
                        y = list(alternating = FALSE,
                                 relation    = "same",
                                 rot         = 0)
                    ),
        ylim=c(min, max),
        col      = 1,
        panel    = function(x,y ,...){

                     pnl = panel.number()

                     if (pnl %in% c(1:6)) 
panel.xyplot(x,y, type = "b",...) else panel.xyplot(x,y, type =
"l",...)

                     grid.text(label = 
paste("Lat.", rep(c(3,2) ,each = 6)[pnl], "? S, 
Long.", rep(rep(5:4, 3),2)[pnl], "? W"),
                               x = unit(.1, "npc"),
                               y = unit(.8, "npc"),
                               hjust = NULL, vjust = NULL, rot = 0,
                               just = "left", default.units =
"npc",
                               gp = gpar(cex = 0.8) )


                   }
)  # xyplot **
)

If you want to have selected? points aggregate first
For sampling you would have to sample that first 
and then use abs()[5] to get the five nearest

Not sure what you mean exactly and without a 
sample of the 5000 cannot help further

HTH

Regards

Duncan

Duncan Mackay
Department of Agronomy and Soil Science
University of New England
Armidale NSW 2351
Email: home: mackay at northnet.com.au


At 09:15 23/02/2013, you wrote:>Hi Mackay and anybody
>(a) Is it possible to select randomly (let say five grids) and plot?
>(b) Is it possible to plot five nearest grid in one figure?
>The original question and improved codes:
>
>
>#I am ploting gridded time series data. I would like the actual lat
>#and lon value appear on the graph-if possible inside the graph as
>#numbers. If there is also more elegant ways to plot the graphs I
>#>will appreciate more suggestions.
>#################################
>library(ggplot2)
>library(lattice)
>month <- c("Jan", "Feb", "Mar",
"Apr", "May", "Jun", "Jul",
>"Aug", "Sep", "Oct", "Nov",
"Dec")
>month <- factor(month, levels = month.abb)
>data <- as.data.frame(expand.grid(lon=seq(4,5, 1), lat=seq(-3,-2,1),
>year=seq(2010, 2012,1), month=month))
>n=nrow(data)
>data$prec <- rgamma(n, 2, 0.25)
>data$year <- factor(data$year)
>data$lon  <- factor(data$lon)
>data$lat  <- factor(data$lat)
>ndata <- data[order(data$lon, data$lat),]
>fix(ndata)
>max <- max(ndata$prec, na.rm=TRUE)
>min <- min(ndata$prec, na.rm=TRUE)
>
>#Plot the graph and save as pdf by Mackay suggestion
>pdf("H:/file.pdf")
>library(latticeExtra)
>useOuterStrips(
>xyplot(prec~month|year*paste(lat,lon), data=ndata,
>as.table = T,
>type = c("l", "l","p"), ylim=c(min, max),
>layout=c(1,4)) )
>dev.off()#The actual data have more than 5 
>thousand data points, Just want to plot a few
>#selected randomly. Also, if I can put 5 data 
>points (nearest grids) in one graph
>#will be more helpful.
>
>
>Peter Maclean
>Department of Economics
>UDSM
>         [[alternative HTML version deleted]]
>
>______________________________________________
>R-help at r-project.org 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.

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