stplanr (version 0.4.0)

n_sample_length: Sample integer number from given continuous vector of line lengths and probabilities, with total n

Description

Sample integer number from given continuous vector of line lengths and probabilities, with total n

Usage

n_sample_length(n, l_lengths, weights)

Arguments

n

Sum of integer values returned

l_lengths

Numeric vector of line lengths

weights

Relative probabilities of samples on lines

See Also

Other lines: angle_diff, geo_toptail, is_linepoint, line2df, line2points, line_bearing, line_match, line_midpoint, line_sample, line_segment, line_via, mats2line, n_vertices, onewaygeo, onewayid, points2line, toptail_buff, toptailgs, update_line_geometry

Examples

# NOT RUN {
n <- 10
l_lengths <- 1:5
weights <- 9:5
(res <- n_sample_length(n, l_lengths, weights))
sum(res)
n <- 100
l_lengths <- c(12, 22, 15, 14)
weights <- c(38, 10, 44, 34)
(res <- n_sample_length(n, l_lengths, weights))
sum(res)
# more examples:
n_sample_length(5, 1:5, c(0.1, 0.9, 0, 0, 0))
n_sample_length(5, 1:5, c(0.5, 0.3, 0.1, 0, 0))
l <- flowlines[2:6, ]
l_lengths <- line_length(l)
n <- n_sample_length(10, l_lengths, weights = l$All)
# }