s="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
    <div class="sourceCode"><pre><code>fdcu(x, lband, uband, ...)

# S3 method for default
fdcu(x, lband, uband, sim=NULL, lQ.thr=0.7, hQ.thr=0.2, plot=TRUE, log="y", 
     main="Flow Duration Curve", xlab="% Time flow equalled or exceeded", 
     ylab="Q, [m3/s]", ylim, yat=c(0.01, 0.1, 1), xat=c(0.01, 0.025, 0.05), 
     col=c("black", "red"), pch=c(1, 15), lwd=c(1, 0.8), lty=c(1, 3), cex=0.2, 
     cex.axis=1.2, cex.lab=1.2, leg.txt= c("Qobs", "Q