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
mlbench.1spiral creates a single spiral.
mlbench.spirals(n, cycles=1, sd=0) mlbench.1spiral(n, cycles=1, sd=0)
- number of patterns to create
- the number of cycles each spiral makes
- Returns an object of class
x input values classes factor vector of length
nwith target classes
# 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)
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