HAKUSAN: Ship's Navigation Data

In TSSS: Time Series Analysis with State Space Model

Ship's Navigation Data

Description

A multivariate time series of a ship's yaw rate, rolling, pitching and rudder angles which were recorded every second while navigating across the Pacific Ocean.

Usage

data(HAKUSAN)

Format

A data frame with 1000 observations on the following 4 variables.

[, 1]	YawRate	yaw rate
[, 2]	Rolling	rolling
[, 3]	Pitching	pitching
[, 4]	Rudder	rudder angle

Source

The data were offered by Prof. K. Ohtsu of Tokyo University of Marine Science and Technology.

Examples

data(HAKUSAN)
HAKUSAN234 <- HAKUSAN[, c(2,3,4)]

## put histograms on the diagonal
panel.hist <- function(x, ...)
{
    usr <- par("usr")
    par(usr = c(usr[1:2], 0, 1.3))
    nB <- 20; nB1 <- nB + 1
    xmin <- min(x)
    xmax <- max(x)
    w <- (xmax - xmin) / nB
    breaks <- xmin
    b <- xmin
    for (i in 1:nB) {
      b <- b + w
      breaks <- c(breaks, b)
    }
    h <- hist(x, breaks = breaks, plot = FALSE)
    y <- h$counts; y <- y / max(y)
    rect(breaks[1:nB], 0, breaks[2:nB1], y, ...)

}

par(xaxs = "i", yaxs = "i", xaxt = "n", yaxt = "n")
pairs(HAKUSAN234, diag.panel = panel.hist, pch = 20, cex.labels = 1.5, 
      label.pos = 0.9, lower.panel = NULL)

TSSS documentation built on Sept. 29, 2023, 9:07 a.m.