stream (version 1.0-3)

DSD: Data Stream Data Generator Base Classes

Description

Abstract base classes for DSD (Data Stream Data Generator).

Details

The DSD class cannot be instantiated, but it serves as a abstract base class from which all DSD objects inherit.

DSD_R inherits form DSD and is the abstract parent class for DSD implemented in R. To create a new R-based implementation there are only two function that needs to be implemented for a new DSD subclass: A creator function (the name should start with DSD_) and a method get_points() for that class.

DSD provides common functionality like print(), plot(), etc.

Note that calling DSD() or DSD_R() results in an error since both are abstract classes.

See Also

animate_data, animate_cluster, cluster, DSD_ReadStream, evaluate, get_points, plot, recluster, write_stream

Examples

# create data stream with three clusters in 3-dimensional space 
dsd <- DSD_Gaussians(k=3, d=3)

# get points from stream
get_points(dsd, n=5)  

# get points with true cluster assignment
p <- get_points(dsd, n=5, assignment=TRUE)
attr(p, "assignment")
  
# plotting the data (scatter plot matrix, first and third dimension, and first
#  two principal components)
plot(dsd)
plot(dsd, dim=c(1,3))
plot(dsd, method="pc")