trle_cond {nseq}

Count the number of events in a sequence

Description

This function will count the occurrence of sequential events that meets some conditions.

Usage

trle_cond(x, a_op = "gte", a, b_op = "gte", b, isolated = FALSE)

Arguments

x

numeric vector.

a_op, b_op

character. Operator, gte = greater than or equal, lte = less than or equal, gt = greater than, lt = less than, e = equal.

a

integer. Length of period threshold.

b

integer. Value threshold.

isolated

logical. Consider only isolated events, i.e. surrounded by zeros. On this case, a and a_op are not considered.

Details

Example: In a vector, how many sequences have at least 3 consecutive observations (a_op = "gte", a = 3) with values equal or greater than 5 (b_op = "gte", b = 5)?

Value

a numeric value.

Examples

# How many sequences have at least 3 consecutive observations with value equal or greater than 5?
trle_cond(x = c(8,15,20,0,0,0,0,5,9,12), a_op = "gte", a = 3, b_op = "gte", b = 5)