FField-package: Force field simulation for a set of points

In FField: Force field simulation for a set of points

Description

Force field simulation of interaction of set of points. Very useful for placing text labels on graphs, such as scatterplots.

Details

FFieldPtRep(): Performs force field simulation of mutual repulsion by set of points.

FFieldPtRepDemo(): Demonstrates the utility of FFieldPtRep for placing labels in a scatterplot.

Author(s)

Grigori Kapoustin

See Also

FFieldPtRep FFieldPtRepDemo

Examples

# Repel points
coords <-
  FFieldPtRep(coords = cbind(mtcars$wt * 100 / max(mtcars$wt), 
                             mtcars$mpg * 100 / max(mtcars$mpg)),
              rep.fact = 40)
head(mtcars)
head(coords)
  
# Demo
FFieldPtRepDemo()

Example output

                   mpg cyl disp  hp drat    wt  qsec vs am gear carb
Mazda RX4         21.0   6  160 110 3.90 2.620 16.46  0  1    4    4
Mazda RX4 Wag     21.0   6  160 110 3.90 2.875 17.02  0  1    4    4
Datsun 710        22.8   4  108  93 3.85 2.320 18.61  1  1    4    1
Hornet 4 Drive    21.4   6  258 110 3.08 3.215 19.44  1  0    3    1
Hornet Sportabout 18.7   8  360 175 3.15 3.440 17.02  0  0    3    2
Valiant           18.1   6  225 105 2.76 3.460 20.22  1  0    3    1
         x        y
1 45.11259 58.47014
2 54.19136 61.20140
3 40.34714 69.42976
4 62.48920 65.94822
5 59.81417 56.33633
6 66.54832 53.33343

FField documentation built on May 2, 2019, 3:39 a.m.