Usage
word.network.plot(text.var, grouping.var = NULL,
target.words = NULL, stopwords = Top100Words,
label.cex = 0.8, label.size = 0.5, edge.curved = TRUE,
vertex.shape = "circle", edge.color = "gray70",
label.colors = "black", layout = NULL,
title.name = NULL, title.padj = -4.5,
title.location = 3, title.font = NULL, title.cex = 0.8,
log.labels = FALSE, title.color = "black",
legend = NULL, legend.cex = 0.8,
legend.location = c(-1.54, 1.41), plot = TRUE,
char2space = "~~", ...)
Arguments
text.var
The text variable.
grouping.var
The grouping variables. Default
NULL
generates one word list for all text. Also
takes a single grouping variable or a list of 1 or more
grouping variables.
target.words
A named list of vectors of words
whose length corresponds to label.colors
(+1
length in cloud colors for non-matched terms).
stopwords
Words to exclude from the analysis
(default is Top100Words).
label.cex
The magnification to be used for network
plot labels relative to the current setting of cex.
Default is .8.
log.labels
logical. If TRUE
uses a
proportional log label for more readable labels. The
formula is: log(SUMS)/max(log(SUMS)))
.
label.size
adds more control over the label
sizes.
label.size
An optional sizing constant to add to
labels if log.labels is TRUE
.
edge.curved
logical. If TRUE
edges will be
curved rather than straight paths.
edge.color
A character vector of length one
corresponding to the color of the plot edges.
label.colors
A character vector of length one
corresponding to the color of the labels.
layout
Layout types supported by igraph. See
layout
. title.name
The title of the plot.
title.padj
Adjustment for the network plot title.
For strings parallel to the axes, padj = 0 means right or
top alignment, and padj = 1 means left or bottom
alignment.
title.location
On which side of the network plot
(1=bottom, 2=left, 3=top, 4=right).
title.font
The font family of the cloud title.
title.cex
Character expansion factor for the
title. NULL
and NA
are equivalent to 1.0.
title.color
A character vector of length one
corresponding to the color of the title.
legend
A character vector of names corresponding
to the number of vectors in match.string
.
legend.cex
Character expansion factor for the
network plot legend. NULL
and NA
are
equivalent to 1.0.
legend.location
The x and y co-ordinates to be
used to position the network plot legend. The location
may also be specified by setting x to a single keyword
from the list "bottomright"
, "bottom"
,
"bottomleft"
, "le
plot
logical. If TRUE
plots a network plot
of the words.
char2space
A vector of characters to be turned
into spaces. If char.keep
is NULL
,
char2space
will activate this argument.
...
Other arguments passed to
strip
.