Description Usage Arguments Value See Also Examples
Produces word clouds with optional theme coloring by grouping variable.
1 2 3 4 5 6 7 8 9 10 11 12 13 | trans.cloud(text.var = NULL, grouping.var = NULL,
word.list = NULL, stem = FALSE, target.words = NULL,
expand.target = TRUE, target.exclude = NULL,
stopwords = NULL, min.freq = 1, caps = TRUE,
caps.list = NULL, random.order = FALSE, rot.per = 0,
cloud.colors = NULL, title = TRUE, cloud.font = NULL,
title.font = NULL, title.color = "black",
title.padj = -4.5, title.location = 3,
title.cex = NULL, title.names = NULL,
proportional = FALSE, max.word.size = NULL,
min.word.size = 0.5, legend = NULL, legend.cex = 0.8,
legend.location = c(-0.03, 1.03), char.keep = "~~",
char2space = NULL)
|
text.var |
The text variable. |
grouping.var |
The grouping variables. Default NULL generates one output for all text. Also takes a single grouping variable or a list of 1 or more grouping variables. |
word.list |
A frequency word list passed from
|
stem |
logical. If TRUE the |
target.words |
A named list of vectors of words
whose length corresponds to |
expand.target |
logical. If TRUE agrep will be used
to expand the |
target.exclude |
A vector of words to exclude from
the |
stopwords |
Words to exclude from the cloud. |
min.freq |
An integer value indicating the minimum frequency a word must appear to be included. |
caps |
logical. If TRUE selected words will be capitalized. |
caps.list |
A vector of words to capitalize
( |
random.order |
Plot words in random order. If false, they will be plotted in decreasing frequency. |
rot.per |
Proportion words with 90 degree rotation. |
cloud.colors |
A vector of colors equal to the length of target words +1. |
title |
logical. IF TRUE adds a title corresponding
to the |
cloud.font |
The font family of the cloud text. |
title.font |
The font family of the cloud title. |
title.color |
A character vector of length one corresponding to the color of the title. |
title.padj |
Adjustment for the 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 plot (1=bottom, 2=left, 3=top, 4=right). |
title.cex |
Character expansion factor for the title. NULL and NA are equivalent to 1.0. |
title.names |
Optional vector of title names equal in length to the grouping.var that will override the default use of the grouping.var names. |
proportional |
logical. If TRUE scales the word clouds across grouping.var to allow cloud to cloud comparisons. |
max.word.size |
A size argument to control the minimum size of the words. |
min.word.size |
A size argument to control the maximum size of the words. |
legend |
A character vector of names corresponding to the number of vectors in target.words. |
legend.cex |
Character expansion factor for the legend. NULL and NA are equivalent to 1.0. |
legend.location |
The x and y co-ordinates to be used to position the legend. |
char.keep |
A character vector of symbol character (i.e. punctuation) that strip should keep. The default is to strip everything except apostrophes. This enables the use of special characters to be turned into spaces or for characters to be retained. |
char2space |
A vector of characters to be turned
into spaces. If |
Returns a series of word cloud plots with target words (themes) colored.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | terms <- list(
I=c("i", "i'm"),
mal=qcv(stinks, dumb, distrust),
articles=qcv(the, a, an),
pronoun=qcv(we, you)
)
with(DATA, trans.cloud(state, person, target.words=terms,
cloud.colors=qcv(red, green, blue, black, gray65),
expand.target=FALSE, proportional=TRUE))
with(DATA, trans.cloud(state, person, target.words=terms,
stopwords=exclude(with(DATA, unique(bag.o.words(state))),
unique(unlist(terms))),
cloud.colors=qcv(red, green, blue, black, gray65),
expand.target=FALSE, proportional=TRUE))
|
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