prefixes {celltrackR}

Get Track Prefixes

Description

Creates a tracks object consisting of all prefixes (i.e., subtracks starting with the first position of a track) of 'x' with 'i' segments (i.e., 'i'+1 positions).

Usage

prefixes(x, i)

Arguments

x

a single track or a tracks object.

i

subtrack length. A single integer, lists are not supported.

Details

This function behaves exactly like subtracks except that only subtracks starting from the first position are considered.

Value

A tracks object is returned which contains all the subtracks of any track in the input tracks object that consist of exactly 'i' segments and start at the first registered coordinate of the given track.

See Also

subtracks to extract all subtracks of a given length, subtracksByTime to extract all subtracks of a given length starting at some fixed timepoint, and selectSteps to extract single steps starting at a fixed timepoint from a subset of trackids.