ratios {stocks} | R Documentation |
Calculates vector of ratios of a vector, i.e. ratio of x[2]
to
x[1]
, ratio of x[3]
to x[2]
, and so forth.
ratios(x)
x |
Numeric vector. |
Numeric vector.
# Generate 10 values from N(0, 1)
x <- rnorm(10)
# Calculate vector of ratios
(y <- ratios(x))
# Slower base R computation
len <- length(x)
y2 <- x[2: len] / x[1: (len - 1)]
all.equal(y, y2)