confband {lava} | R Documentation

## Add Confidence limits bar to plot

### Description

Add Confidence limits bar to plot

### Usage

    confband(x, lower, upper, center = NULL, line = TRUE, delta = 0.07,
      centermark = 0.03, pch, blank = TRUE, vert = TRUE, polygon = FALSE,
      step = FALSE, ...)

### Arguments

`x` | Position (x-coordinate if vert=TRUE, y-coordinate otherwise)
`lower` | Lower limit (if NULL no limits is added, and only the center is drawn (if not NULL))
`upper` | Upper limit
`center` | Center point
`line` | If FALSE do not add line between upper and lower bound
`delta` | Length of limit bars
`centermark` | Length of center bar
`pch` | Center symbol (if missing a line is drawn)
`blank` | If TRUE a white ball is plotted before the center is added to the plot
`vert` | If TRUE a vertical bar is plotted. Otherwise a horizontal bar is used
`polygon` | If TRUE polygons are added between 'lower' and 'upper'.
`step` | Type of polygon (step-function or piecewise linear)
`...` | Additional low level arguments (e.g. col, lwd, lty,...)

### Author(s)

Klaus K. Holst

### See Also

`confband`

### Examples

    plot(0,0,type="n",xlab="",ylab="")
    confband(0.5,-0.5,0.5,0,col="darkblue")
    confband(0.8,-0.5,0.5,0,col="darkred",vert=FALSE,pch=1,cex=1.5)

    set.seed(1)
    K <- 20
    est <- rnorm(K)
    se <- runif(K,0.2,0.4)
    x <- cbind(est,est-2*se,est+2*se,runif(K,0.5,2))
    x[c(3:4,10:12),] <- NA
    rownames(x) <- unlist(lapply(letters[seq(K)],function(x) paste(rep(x,4),collapse="")))
    rownames(x)[which(is.na(est))] <- ""
    signif <- sign(x[,2])==sign(x[,3])
    forestplot(x,text.right=FALSE)
    forestplot(x[,-4],sep=c(2,15),col=signif+1,box1=TRUE,delta=0.2,pch=16,cex=1.5)
    forestplot(x,vert=TRUE,text=FALSE)
    forestplot(x,vert=TRUE,text=FALSE,pch=NA)
    ##forestplot(x,vert=TRUE,text.vert=FALSE)
    ##forestplot(val,vert=TRUE,add=TRUE)

    z <- seq(10)
    zu <- c(z[-1],10)
    plot(z,type="n")
    confband(z,zu,rep(0,length(z)),col=Col("darkblue"),polygon=TRUE,step=TRUE)
    confband(z,zu,zu-2,col=Col("darkred"),polygon=TRUE,step=TRUE)

    z <- seq(0,1,length.out=100)
    plot(z,z,type="n")
    confband(z,z,z^2,polygon="TRUE",col=Col("darkblue"))

    set.seed(1)
    k <- 10
    x <- seq(k)
    est <- rnorm(k)
    sd <- runif(k)
    val <- cbind(x,est,est-sd,est+sd)
    par(mfrow=c(1,2))
    plot(0,type="n",xlim=c(0,k+1),ylim=range(val[,-1]),axes=FALSE,xlab="",ylab="")
    axis(2)
    confband(val[,1],val[,3],val[,4],val[,2],pch=16,cex=2)
    plot(0,type="n",ylim=c(0,k+1),xlim=range(val[,-1]),axes=FALSE,xlab="",ylab="")
    axis(1)
    confband(val[,1],val[,3],val[,4],val[,2],pch=16,cex=2,vert=FALSE)

[Package lava version 1.5.1 Index]