SiZer {feature} | R Documentation |
SiZer (Significant Zero crossings) plot for 1-dimensional data.
SiZer(x, bw, gridsize, scaleData=FALSE, signifLevel=0.05, plotSiZer=TRUE, logbw=TRUE, xlim, xlab, addLegend=TRUE, posLegend="topright")
x |
data vector |
bw |
vector of range of bandwidths |
gridsize |
number of x- and y-axis grid points |
scaleData |
flag for scaling the data i.e. transforming to unit variance for each dimension. |
signifLevel |
significance level |
plotSiZer |
flag for displaying SiZer map |
logbw |
flag for displaying log bandwidths on y-axis |
xlim |
x-axis limits |
xlab |
x-axis label |
addLegend |
flag for legend display |
posLegend |
legend position |
The gradient SiZer map of Chaudhuri & Marron (1999) is implemented. The horizontal axis is the data axis, the vertical axis are the bandwidths.
SiZer plot sent to graphics window.
Chaudhuri, P. and Marron, J.S. (1999) SiZer for exploration of structures in curves. Journal of the American Statistical Association, 94, 807-823.
data(earthquake) eq3 <- -log10(-earthquake[,3]) SiZer(eq3, xlab="-log(-depth)") SiZer(eq3, xlab="-log(-depth)", bw=c(0.05, 1.3), gridsize=401)