image.seas.sum {climate.plot}R Documentation

Show a seasonal sum data object

Description

Graphicly dispay a seasonal sum object.

Usage

image.seas.sum(x, start, end, param, norm = "days", maxz, nlevels = 128, maxa,
  col = .65, dark = 0, gamma = 0.8, lwd = 2, sqrt = FALSE, 
  show.na = TRUE, show.median = TRUE, contour = FALSE, ...)

Arguments

x a seas.sum object
start start year; if omitted minimum year will be used
end end year; if omitted will use same as start, and if start is omitted, will use maximum year
param the desired parameter show, otherwise will use the prime paremeter, defined in x
norm parameter to normilize by, usually "days", to produce unit/day
maxz maximum value to be displayed
nlevels number of colour levels
maxa maximum for annual axis, on right-hand graphs (if show.median=TRUE)
col colour or hue, between [0,1]
dark darkness of colour
gamma gamma correction for colour
lwd line-thickness for median/mean lines (if show.median=TRUE)
sqrt logical; square root of the values to be taken (legend is transposed back to original unit)
show.na logical; put red a ‘x’ where data are NA
show.median logical; show how the median calculation is acheived graphically (computationally it is done using a secant method); see seas.norm for more information on this method
contour logical; show contours in lower left-hand plot
... other arguments passed to .seastitle for title style, and other customizations to the appearance

Details

This is a graphical representation of a seas.sum object, and is far more infomative than a traditional precipitation “normal” (i.e., precip.norm or precip.norm)

Author(s)

M.W. Toews

See Also

seas.sum, seas.norm

Examples

data(mscdata)

dat.ss <- seas.sum(mscdata, id=1108447, width="mon")
image(dat.ss)

[Package climate.plot version 0.1-2 Index]