FREddyPro (version 1.0)

plotQC: Plot using QC flags

Description

Plot fluxes using different colour and points for each QC.

Usage

plotQC(data, var, qc_var=NULL, xvar, lines = FALSE, legendSide = NULL,
ylab = var, xlab = "DOY", col = c(1, 2, 3, 4, 5, 6, 7, 8, 9),
pch = c(16, 17, 18, 19, 20, 21, 22, 23, 24), ...)

Arguments

data

The EddyPro full output data frame

var

Character. The name of the variable to plot. Default variable is CO2 flux.

qc_var

Character. The name of the qc variable to plot.

xvar

Character. The name of the X variable to plot. Default variable is DOY.

lines

Logical. If TRUE a line will be drawn between each point

legendSide

Side where to place the legend of the plot. Options include 'topright', 'topleft', 'bottomright', 'bottomleft', 'center', 'bottom', 'left', 'right', 'top'. For more details see legend help file

ylab

y axis label

xlab

x axis label

col

Colour of the points. This can either be a single value or a vector for each of the flag

pch

Integer or single character. The type of points

...

Any extra plotting arguments

Examples

## Close any previously open graphic devices
graphics.off()

## Load the data
data(fluxes)

## Clean fluxes
fluxes=cleanFluxes(fluxes,sdCor=TRUE,sdTimes=3,timesList=3,distCor=TRUE,
                    thresholdList=list(H=c(-100,1000),LE=c(-100,1000)))

## Plot CO2 fluxes based on the QC flag
plotQC(fluxes,"co2_flux",legendSide='bottomleft',xlab="Day of year",
        lines=TRUE,lty=2,ylab="F"[c]~" (umol/m"^2~"/s)",col=c(1,1,1),pch=c(1,2,8),
        xlim=c(150,155),xaxt='n',main='QC flags')

## Draw a new X-axis
axis(1,at=seq(150,155,0.5),labels=TRUE)

## A horizontal line
abline(h=0,lty=2)