venn {eulerr} | R Documentation |
Venn diagrams
Description
This function fits Venn diagrams using an interface that is
almost identical to euler()
. Strictly speaking,
Venn diagrams are Euler diagrams where every intersection is visible,
regardless of whether or not it is zero. In almost every incarnation of
Venn diagrams, however, the areas in the diagram are also
non-proportional to the input; this is also the case here.
Usage
venn(combinations, ...)
## Default S3 method:
venn(
combinations,
input = c("disjoint", "union"),
names = letters[length(combinations)],
...
)
## S3 method for class 'table'
venn(combinations, ...)
## S3 method for class 'data.frame'
venn(
combinations,
weights = NULL,
by = NULL,
sep = "_",
factor_names = TRUE,
...
)
## S3 method for class 'matrix'
venn(combinations, ...)
## S3 method for class 'list'
venn(combinations, ...)
Arguments
combinations |
set relationships as a named numeric vector, matrix, or data.frame (see methods (by class)) |
... |
arguments passed down to other methods |
input |
type of input: disjoint identities
( |
names |
a character vector for the names of each set of the same
length as 'combinations'. Must not be |
weights |
a numeric vector of weights of the same length as
the number of rows in |
by |
a factor or character matrix to be used in |
sep |
a character to use to separate the dummy-coded factors if there are factor or character vectors in 'combinations'. |
factor_names |
whether to include factor names when constructing dummy codes |
Value
Returns an object of class 'venn', 'euler'
with items
ellipses |
a matrix of |
original.values |
set relationships in the input |
fitted.values |
set relationships in the solution |
Methods (by class)
-
venn(default)
: a named numeric vector, with combinations separated by an ampersand, for instanceA&B = 10
. Missing combinations are treated as being 0. -
venn(table)
: A table withmax(dim(x)) < 3
. -
venn(data.frame)
: adata.frame
of logicals, binary integers, or factors. -
venn(matrix)
: a matrix that can be converted to a data.frame of logicals (as in the description above) viabase::as.data.frame.matrix()
. -
venn(list)
: a list of vectors, each vector giving the contents of that set (with no duplicates). Vectors in the list do not need to be named.
See Also
plot.venn()
, print.venn()
, euler()
Examples
# The trivial version
f1 <- venn(5, names = letters[1:5])
plot(f1)
# Using data (a numeric vector)
f2 <- venn(c(A = 1, "B&C" = 3, "A&D" = 0.3))
# The table method
venn(pain, factor_names = FALSE)
# Using grouping via the 'by' argument through the data.frame method
venn(fruits, by = list(sex, age))
# Using the matrix method
venn(organisms)
# Using weights
venn(organisms, weights = c(10, 20, 5, 4, 8, 9, 2))
# A venn diagram from a list of sample spaces (the list method)
venn(plants[c("erigenia", "solanum", "cynodon")])