mlbench.spirals

0th

Percentile

Two Spirals Benchmark Problem

The inputs of the spirals problem are points on two entangled spirals. If sd>0, then Gaussian noise is added to each data point. mlbench.1spiral creates a single spiral.

Keywords
datagen
Usage
mlbench.spirals(n, cycles=1, sd=0) mlbench.1spiral(n, cycles=1, sd=0)
Arguments
n
number of patterns to create
cycles
the number of cycles each spiral makes
sd
standard deviation of data points around the spirals
Value

"mlbench.spirals" with components
x
input values
classes
factor vector of length n with target classes

Aliases
  • mlbench.spirals
  • mlbench.1spiral
Examples
library(mlbench) # 1 cycle each, no noise p<-mlbench.spirals(300) plot(p) # # 1.5 cycles each, with noise p<-mlbench.spirals(300,1.5,0.05) plot(p)
Documentation reproduced from package mlbench, version 2.1-1, License: GPL-2

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