Description Usage Format Details Source References Examples
The test data is a simulated 3D dataset of 2-colored lines, i.e., red, green, whose pivots intersect at the origin in the unit box [-1, 1] x [-1, 1] x [-1, 1].
1 | data("twolines")
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A data frame with the precise x,y,z coordinates of 426 signal points with marked colors for their memberships. The x,y,z coordinates are within the interval [-1,1].
x
the x coordinate
y
the y coordinate
z
the z coordinate
membership
a factor with levels red
and green
The pivots of the red and green lines are respectively, (t,0,0), (t*cos(atan(5)), t*sin(atan(5)), 0). The number of points along each pivot within the unit box is Poisson(200). The t values are generated by the uniform distribution. The perturbations for locations of all signals are generated independently in the orthogonal plane away from the pivot with zero mean and SD = 0.1 for the displacements together with the uniformly distributed random rotations.
From Xueyan Liu, Jiahui Xu, Cheng Cheng, Hui Zhang.
N/A
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