| data.image {mining} | R Documentation |
Each value in a data matrix is represented by a colored pixel.
data.image(x,reorder=T,scale=T,col=YR.colors(64),...)
x |
a matrix or data frame. |
reorder |
If TRUE, the rows and columns are reordered so
that the data along each row and each column follows a linear trend.
Can also be a vector of two logicals, indicating separately
whether to reorder rows and/or columns.
|
scale |
If TRUE, each column is scaled to have minimum
0 and maximum 1. |
col |
a vector of colors to use for representing values. |
... |
extra arguments to image.default. |
Tom Minka
M. C. Minnotte and R. W. West. "The Data Image: A Tool For Exploring High Dimensional Data Sets." Proceedings of the ASA Section on Statistical Graphics, 1998. http://citeseer.nj.nec.com/72085.html http://math.usu.edu/~minnotte/research/pubs.html
data(USJudgeRatings) data.image(USJudgeRatings,col=RC.colors(32))