[R] Recurrence plots in R using different colours

l.handke at tu-braunschweig.de l.handke at tu-braunschweig.de
Thu Oct 12 15:18:17 CEST 2017


I am an absolutely beginner with regards to R, so forgive me for my
potentially very stupid questions.

I have been attempting to create recurrence plots using R. The data I am
using is based on a mutually exclusive and exhaustive coding scheme with
over 40 individual codes which can be assigned to 6 higher order categories.
When I carry out the usual rqa command, my plot is pretty much black - no
surprises there really considering the exhaustive nature of my coding scheme
and the fact that there are only 6 different categories. 

What i would like to do is colour-code my categories in order to arrive at a
plot that shows the colour of the reccurence of the specific category.
Eventually that would mean a plot with six different colours (next to white,
which means no recurrence), rather than the plain black and white plot which
does not reflect the nature of the recurrence. I hope that my explanation is
clear enough.

My procedure up until now has been:

1) perform a recurrence quantification analysis:

testplot <- rqa(time.series = test$Code, embedding.dim = 1, time.lag = 1,

               radius = 0.1,lmin =2, vmin =2, distanceToBorder = 2, save.RM
= TRUE, do.plot = TRUE)


This plot is based on a TRUE FALSE sparse matrix.

2) Accordingly the next step was to transform this TRUE FALSE matrix to one
that contains the values for the codes for TRUE and 0 for false:

RP1 <- testplot$recurrence.matrix
RP2 <- as.matrix(RP1)*1
TS <- test$Code
for (i in seq(1,dim(RP2)[1])) {
  for (j in seq(1,dim(RP2)[1])) {
    if (RP2[i,j] == 1) {
      RP2[i,j] <- TS[i]

This results in a matrix of this type:

1    0    3    1    
0    4    0    0   
1    0    5    6    


Now I am missing step 3 --> how can plot this matrix by previously assigning
different colours to the numbers?

Thank you in advance for your help!

Best, Lisa




M.Sc. Lisa Handke

Technische Universität Braunschweig

Institut für Psychologie

Lehrstuhl für Arbeits-, Organisations- und Sozialpsychologie 

Spielmannstrasse 19, Raum 103

D-38106 Braunschweig


Phone: +49 (0)531-391-2539

Fax:   +49 (0)531-391-8173

Mail:   <mailto:l.handke at tu-braunschweig.de> l.handke at tu-braunschweig.de



	[[alternative HTML version deleted]]

More information about the R-help mailing list