check_start: Do all names start with "it"?

In nielsaka/zeitreihe: Simulate, Estimate, Select, and Forecast Multiple Time Series Processes

Description

Check whether the names of a vector all start with a certain string.

Usage

check_start(x, start)

check_start_all(x, start)

Arguments

x	A vector. The names of the vector will be checked.
start	A character string.

Value

• check_start
  A boolean vector of the same length as x if x is named. Each element is either TRUE or FALSE. They are TRUE if the name of the element starts with start. If x did not carry names, a vector of length zero is returned.

• check_start_all
  A boolean scalar. TRUE if the names of all elements of x start with start. Otherwise FALSE.

Examples

x <- c(tisch = 1, teller = 2, tafel = 3)
name_start(x, "t")

x <- c(x, 4)
name_start(x, "t")

x <- 1:4
name_start(x, "t")
x <- c(tisch = 1, teller = 2, tafel = 3)
check_names(x, "t")

x <- c(x, 4)
check_names(x, "t")

x <- 1:4
check_names(x, "t")

nielsaka/zeitreihe documentation built on March 17, 2020, 8:38 p.m.