Plot ellipses for two-dimensional data (DEPRECATED see below)
The function plots ellipses for different categories from two-dimensional
data. DEPRECATED as this function does not play well with with the new
resultType = "tibble" of get_trackdata(). See https://ips-lmu.github.io/The-EMU-SDMS-Manual/recipe-plottingSnippets.html
for an alternative plotting routines using ggplot2.
eplot( x, labs, chars, formant = FALSE, scaling = "linear", prob = 0.95, nsdev = NULL, dopoints = FALSE, doellipse = TRUE, centroid = FALSE, axes = TRUE, xlim, ylim, col = TRUE, lty = FALSE, lwd = NULL, ... )
x |
A two-columned matrix of data |
labs |
An optional vector of labels, parallel to 'data' |
chars |
An optional vector of labels, parallel to 'data'. If this argument is specified these labels will be plotted rather than the labels in 'labs'. |
formant |
If TRUE) then the data is negated and the axes are switched so that, for formant data, the plot is made with decreasing F2 on the x-axis and decreasing F1 on the y-axis. |
scaling |
Either "mel" or "bark" for mel or bark scaling of the data |
prob |
A single numeric vector greater than zero and less than 1 representing the confidence interval of the ellipse contours. Defaults to 0.95 |
nsdev |
Defines the length of the major and minor axes of the ellipses in terms of the standard deviation of the data and overrides the prob argument. |
dopoints |
If TRUE) character labels (from 'labs' or 'chars') are plotted for each data point |
doellipse |
If TRUE, ellipses are drawn on the plot. If FALSE, no ellipses are drawn and, if 'dopoints' is also FALSE, 'centroids' is set to T |
centroid |
One label for each ellipse is drawn |
axes |
If TRUE axes are drawn on the plot. |
xlim |
A vector of two numeric values giving the range of the x-axis. |
ylim |
A vector of two numeric values giving the range of the y-axis. |
col |
If colour is TRUE) the ellipses and labels will be plotted in different colours |
lty |
If linetype is TRUE) the ellipses will be plotted with different linetypes. This is useful for plots that will be printed. |
lwd |
A code passed to the lwd argument in plotting functions. 'lwd' can be either a single element numeric vector, or its length must be equal to the number of unique types in labs. For example, if lwd=3 and if labs = c("a", "b", "a", "c"), then the output is c(3, 3, 3, 3). Alternatively, if lwd = c(2,3,1), then the output is c(2, 3, 2, 1) for the same example. The default is NULL in which case all lines are drawn with lwd=1 |
... |
graphical options par |
Jonathan Harrington, Steve Cassidy
data(vowlax)
data <- cbind(vowlax.df$F1,vowlax.df$F2)
phonetic = vowlax.l
word = vowlax.word
eplot(data, phonetic)
eplot(data, phonetic, form=TRUE, main="F1 x F2 plane", centroid=TRUE)
eplot(data, phonetic, form=TRUE, main="F1 x F2 plane", dopoints=TRUE)
eplot(data, phonetic, form=TRUE, main="F1 x F2 plane in Bark",
dopoints=TRUE, scaling="bark")
eplot(data, phonetic, form=TRUE, main="F1 x F2 plane in Bark b/w with linetype",
col=FALSE, lty=TRUE, dopoints=TRUE, scaling="bark")
eplot(data, phonetic, form=TRUE, main="F1 x F2 plane",
doellipse=FALSE, dopoints=TRUE)
eplot(data, phonetic, form=TRUE, dopoints=TRUE,
prob=0.5, main="F1 x F2 plane, 50% confidence intervals")
eplot(data, phonetic, form=TRUE, dopoints=TRUE,
nsdev=2, main="F1 x F2 plane, 2 standard deviations")
temp <- phonetic %in% c("a", "O")
eplot(data[temp,], phonetic[temp], form=TRUE, main="F1 x F2 [A] and [O] only", centroid=TRUE)
temp <- phonetic=="O"
eplot(data[temp,], phonetic[temp], word[temp], form=TRUE,
dopoints=TRUE, main="[O] only showing word labels")Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.