list2df: List/Matrix/Vector to Dataframe/List/Matrix

Description

list2df - Convert a named list of vectors to a dataframe.

matrix2df - Convert a matrix to a dataframe and convert the rownames to the first column.

vect2df - Convert a named vector to a dataframe.

list_df2df - Convert a list of equal numbered/named columns to a dataframe using the list names as the level two variable.

list_vect2df - Convert a list of named vectors to a hierarchical dataframe.

counts2list - Convert a count matrix to a named list of elements.

vect2list - Convert a vector to a named list.

df2matrix - Convert a dataframe to a matrix and simultaneously move a column (default is the first column) to the rownames of a matrix.

matrix2long - Convert a matrix to a long format dataframe where column names become column 1, row names, column 2 and the values become column 3.

Usage

list2df(list.object, col1 = "X1", col2 = "X2")
matrix2df(matrix.object, col1 = "var1")
vect2df(vector.object, col1 = "X1", col2 = "X2", order = TRUE, rev = FALSE)
list_df2df(list.df.object, col1 = "X1")
list_vect2df(
  list.vector.object,
  col1 = "X1",
  col2 = "X2",
  col3 = "X3",
  order = TRUE,
  ...
)
counts2list(mat, nm = rownames(mat))
vect2list(vector.object, use.names = TRUE, numbered.names = FALSE)
df2matrix(data.frame.object, i = 1)
matrix2long(matrix.object, col1 = "cols", col2 = "rows", col3 = "vals")

Value

list2df - Returns a dataframe with two columns.

matrix2df - Returns a dataframe.

vect2df - Returns a dataframe.

list_df2df - Returns a dataframe.

list_vect2df - Returns a dataframe.

counts2list - Returns a list of elements.

vect2list - Returns a list of named elements.

df2matrix - Returns a matrix.

matrix2long - Returns a long format dataframe.

Arguments

list.object: A named list of vectors..
col1: Name for column 1 (the vector elements if converting a list or the rownames if converting a matrix).
col2: Name for column 2 (the names of the vectors).
matrix.object: A matrix or simple_triplet_matrix object.
vector.object: A vector object.
order: logical. If TRUE the dataframe will be ordered.
rev: logical. If TRUE and order = TRUE the dataframe will be ordered in descending order.
list.df.object: A list of dataframes with equal number/named of columns.
list.vector.object: A list of dataframes with equal number/named of columns.
col3: The name of the third column (list_vect2df).
...: Further arguments passed to vect2df.
mat: A matrix of counts.
nm: A character vector of names to assign to the list.
use.names: logical. If TRUE and the vector is named, these names will be transferred to the list names.
numbered.names: logical. If TRUE padded numbers will be used as list names. If FALSE the vector elements themselves will become the list names.
data.frame.object: A data.frame object.
i: The column number or name to become the rownames of the matrix.

Examples

Run this code

lst1 <- list(x=c("foo", "bar"), y=1:5)
list2df(lst1)

lst2 <- list(a=c("hello", "everybody"), b = mtcars[1:6, 1])
list2df(lst2, "col 1", "col 2")

matrix2df(mtcars)
matrix2df(cor(mtcars))
matrix2df(matrix(1:9, ncol=3))

vect2df(1:10)
vect2df(c(table(mtcars[, "gear"])))

list_df2df(list(mtcars, mtcars))

L1 <- list(a=1:10, b=1:6, c=5:8)
list_vect2df(L1)

L2 <- list(
  months=setNames(1:12, month.abb),
  numbers=1:6, 
  states=setNames(factor(state.name[1:4]), state.abb[1:4])
)

list_vect2df(L2)

set.seed(10)
cnts <- data.frame(month=month.name,
    matrix(sample(0:2, 36, TRUE), ncol=3))

counts2list(cnts[, -1], cnts[, 1])
df2matrix(cnts)
counts2list(df2matrix(cnts))
counts2list(t(df2matrix(cnts)))

mat <- matrix(1:9, ncol=3)
matrix2long(mat)
matrix2long(mtcars)

if (FALSE) {
library(qdap)
term <- c("the ", "she", " wh")
(out <- with(raj.act.1,  termco(dialogue, person, term)))
x <- counts(out)

counts2list(x[, -c(1:2)], x[, 1])
}

vect2list(LETTERS[1:10])
vect2list(LETTERS[1:10], numbered.names = TRUE)
x <- setNames(LETTERS[1:4], paste0("Element_", 1:4))
vect2list(x)
vect2list(x, FALSE)
vect2list(x, FALSE, TRUE)

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