twolines {colocalization}

A simulated 2-lines test data in 3D

Description

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].

Usage

data("twolines")

Format

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

Details

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.

Source

From Xueyan Liu, Jiahui Xu, Cheng Cheng, Hui Zhang.

References

N/A

Examples

data("twolines")


library(rgl)
plot3d(twolines[,c("x","y","z")], type = 's', size = 0.8, col = twolines$membership)
aspect3d("iso")