polar.plot {bReeze}R Documentation

Plot wind speed vs. direction

Description

Plots wind speeds against directions in a polar plot.

Usage

polar.plot(mast, v.set=1, dir.set=1, subset, ...)
pol(mast, v.set=1, dir.set=1, subset, ...)

Arguments

mast

Met mast object created by mast.

v.set

Set used for wind speed values, specified as set number or set name.

dir.set

Set used for wind direction values, specified as set number or set name.

subset

Optional start and end time stamp for a data subset, as string vector c(start, end). The time stamps format shall follow the rules of ISO 8601 international standard, e.g. "2012-08-08 22:55:00".

...

Optional graphical parameters, see below for details.

Optional graphical parameters

The following graphical parameters can optionally be added to customize the plot:

Author(s)

Christian Graul

See Also

mast

Examples

## Not run: 
# load and prepare data
data("winddata", package="bReeze")
set40 <- set(height=40, v.avg=winddata[,2], dir.avg=winddata[,14])
set30 <- set(height=30, v.avg=winddata[,6], dir.avg=winddata[,16])
set20 <- set(height=20, v.avg=winddata[,10])
ts <- timestamp(timestamp=winddata[,1])
neubuerg <- mast(timestamp=ts, set40, set30, set20)
neubuerg <- clean(mast=neubuerg)

# plot v vs. dir
polar.plot(mast=neubuerg)
polar.plot(mast=neubuerg, v.set=3, dir.set=2)
polar.plot(mast=neubuerg, v.set="set3", dir.set="set2")	# same as above

# data subsets
polar.plot(mast=neubuerg, 
  subset=c("2009-12-01 00:00:00", "2009-12-31 23:50:00"))
polar.plot(mast=neubuerg,  
  subset=c("2010-01-01 00:00:00", NA)) # just 'start' time stamp
polar.plot(mast=neubuerg, 
  subset=c(NA, "2009-12-31 23:50:00")) # just 'end' time stamp

# customize plot
polar.plot(mast=neubuerg, cex.axis=1.2, cex.lab=1.5, cex.pts=0.8, 
  circles=c(10,20,5), col="red3", col.axis=gray(0.2), col.circle=gray(0.3), 
  col.cross=gray(0.3), col.lab=gray(0.2), fg=TRUE, lty.circle="dotted", 
  lty.cross="longdash", lwd.circle=1.2, lwd.cross=1.2, pch=1, pos.axis=135)

## End(Not run)

[Package bReeze version 0.4-3 Index]