extract_interval() divides the range of time.vector into nBins bins
of equal width, whose bounds are the breaks
seq(min, max, length.out = nBins + 1), and counts the points of each bin.
Value
A data frame with one row per bin, in increasing order, and the
columns lbound, ubound and bin.size.
See also
Other binning helpers:
calc_bin_size(),
estBinSize(),
optimize_bin_max(),
pb_counts()
