image-methods {Matrix} | R Documentation |
Methods for function image
in package
Matrix. An image of a matrix
## S4 method for signature 'dgTMatrix': image(x, xlim = .5 + c(0, di[2]), ylim = .5 + c(di[1], 0), aspect = "iso", sub = sprintf("Dimensions: %d x %d", di[1], di[2]), xlab = "Column", ylab = "Row", col.regions = grey(seq(from = 0.7, to = 0, length = 100)), colorkey = FALSE, ...)
x |
a Matrix object, i.e., fulfilling
is(x, "Matrix") . |
xlim, ylim |
x- and y-axis limits; may be used to “zoom into” matrix. |
aspect |
aspect ratio specified as number (y/x) or string;
see levelplot . |
sub, xlab, ylab |
axis annotation with sensible defaults;
see plot.default . |
col.regions |
vector of gradually varying colors; see
levelplot . |
colorkey |
logical indicating if a color key aka ‘legend’
should be produced. Defaults to FALSE . |
... |
further arguments passed to methods and
levelplot . |
All methods currently end up calling the method for the
dgTMatrix
class.
Use showMethods(image)
to list them all.
showMethods(image) ## If you want to see all the methods' implementations: showMethods(image, incl=TRUE, inherit=FALSE)