View source: R/mlbench-class.R
mlbench.spirals | R Documentation |
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.
mlbench.spirals(n, cycles=1, sd=0)
mlbench.1spiral(n, cycles=1, sd=0)
n |
number of patterns to create |
cycles |
the number of cycles each spiral makes |
sd |
standard deviation of data points around the spirals |
Returns an object of class "mlbench.spirals"
with components
x |
input values |
classes |
factor vector of length |
# 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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