plot.czek_matrix {RMaCzek}

Produce a Czekanowski's Diagram

Description

This is a function that can produce a Czekanowski's Diagram and present clustering findings.

Usage

## S3 method for class 'czek_matrix'
plot(
  x,
  values = NULL,
  type = "symbols",
  plot_title = "Czekanowski's diagram",
  tl.cex = 1,
  tl.offset = 0.4,
  tl.srt = 90,
  pal = brewer.pal(n = 8, name = "Dark2"),
  alpha = 0.3,
  ps_power = 0.6,
  col_size = 1,
  cex.main = 1,
  ...
)

Arguments

x

a matrix with class czek_matrix.

values

specifies the color or the size of the symbols in the graph. The standard setting is a grey scale for a color graph and a vector with the values 2,1,0.5,0.25 and 0 for a graph with symbols.

type

specifies if the graph should use color or symbols. The standard setting is symbols.

plot_title

specifies the main title in the graph.

tl.cex

Numeric, for the size of text label.

tl.offset

Numeric, for text label.

tl.srt

Numeric, for text label, string rotation in degrees.

pal

The colour vector representing the clusters.

alpha

Factor modifying the opacity, alpha, typically in [0,1].

ps_power

A power value to adjust point size.

col_size

When type="col", the size of each point (maximum is 1).

cex.main

Specify the size of the title text.

...

specifies further parameters that can be passed on to the plot function.

Examples

# Set data ####
# Not Cluster
czek = czek_matrix(mtcars)
# Exact Clustering
czek_exact = czek_matrix(mtcars, order = "GW", cluster = TRUE, num_cluster = 2, min.size = 2)
# Fuzzy Clustering
czek_fuzzy = czek_matrix(mtcars, order = "OLO", cluster = TRUE, num_cluster = 2,
cluster_type = "fuzzy", min.size = 2, scale_bandwidth = 0.2)

# Standard plot ############
plot(czek_exact)
plot.czek_matrix(czek_fuzzy)

# Edit diagram title
plot(czek, plot_title = "mtcars", cex.main = 2)

# Change point size ############
# Specify values
plot(czek, values = c(1, 0.8, 0.5, 0.2, 0))
plot(czek, values = grDevices::colorRampPalette(c("black", "red", "white"))(5))

# set point size for 'symbols' type by setting power value
plot(czek, type = "symbols", ps_power = 1)

# set point size for 'col' type
plot(czek, type = "col", col_size = 0.6)

# Specify type ############
plot(czek, type = "symbols")
plot(czek, type = "col")

# Edit cluster ############
# Edit colors
plot(czek_exact, pal = c("red", "blue"))
# Edit opacity
plot(czek_exact, alpha = 0.5)