v.outer: Vectorized Version of outer

In trinker/qdap2: Bridging the gap between qualitative data and quantitative analysis

Description

Vectorized outer.

Usage

  v.outer(x, FUN, ...)

Arguments

x	A matrix, dataframe or equal length list of vectors.
FUN	A vectorized function.
...	Other arguments passed to the function supplied to FUN.

Value

Returns a matrix with the vectorized outer function.

See Also

outer, cor

Examples

pooled.sd <- function(x, y) {
    n1 <- length(x)
    n2 <- length(y)
    s1 <- sd(x)
    s2 <- sd(y)
    sqrt(((n1-1)*s1 + (n2-1)*s2)/((n1-1) + (n2-1)))
}

euc.dist <- function(x,y) sqrt(sum((x - y) ^ 2))
sum2 <- function(x, y) sum(x, y)

v.outer(mtcars, cor)
v.outer(mtcars, pooled.sd)
v.outer(mtcars[, 1:7], euc.dist)
v.outer(mtcars[, 1:7], sum2)

#mtcars as a list
mtcars2 <- lapply(mtcars[, 1:7], "[")
v.outer(mtcars2, cor)
v.outer(mtcars2, cor,  method = "spearman")
v.outer(mtcars2, pooled.sd)
print(v.outer(mtcars[, 1:7], pooled.sd), digits = 1)
print(v.outer(mtcars[, 1:7], pooled.sd), digits = NULL)
v.outer(mtcars2, euc.dist)
v.outer(mtcars2, sum2)

wc3 <- function(x, y) sum(sapply(list(x, y), wc, byrow = FALSE))
L1 <- word_list(DATA$state, DATA$person)$cwl
(x <- v.outer(L1, wc3))
diag(x) <- (sapply(L1, length))
x

trinker/qdap2 documentation built on May 31, 2019, 9:47 p.m.