Modern Classes for Tracking and Movement Data

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Documentation for package ‘sftrack’ version 0.5.4

• DESCRIPTION file.
• User guides, package vignettes and other documentation.
• Package NEWS.

Help Pages

active_group	Access the active_group value
active_group<-	Set new active group
active_group<-.c_grouping	Set new active group
active_group<-.sftrack	Set new active group
active_group<-.sftraj	Set new active group
active_group_replace	Set new active group
as_sftrack	Convert objects into sftrack objects.
as_sftrack.data.frame	Convert objects into sftrack objects.
as_sftrack.ltraj	Convert objects into sftrack objects.
as_sftrack.sf	Convert objects into sftrack objects.
as_sftrack.sftraj	Convert objects into sftrack objects.
as_sftraj	Convert objects into sftrack objects.
as_sftraj.data.frame	Convert objects into sftrack objects.
as_sftraj.ltraj	Convert objects into sftrack objects.
as_sftraj.sf	Convert objects into sftrack objects.
as_sftraj.sftrack	Convert objects into sftrack objects.
c.c_grouping	A class to group movement data
c.s_group	A class to group movement data
calc_sort_index	Calculate a new sort index for groups
check_group_id	Check there is a grouping id present
check_group_names	Are group names equivalent for each s_group?
check_names_exist	Check if a set of column names are found in a data frame and return an error if not
check_NA_coords	Check if coordinates contain NAs in some columns but not others
check_NA_group	Check there are no NAs in burst
check_ordered	Checks if grouping is ordered by time and then outputs the correct order
check_time	Check if time is integer or posix
check_t_regular	Check if time is regular for each burst and returns logical for each burst
coord_traj	Return a list of sf_POINTS or a data.frame from a sftraj object
dup_timestamp	check that time is unique
fix_zero	fix 0's to NAs in latitude and longitude
geom_sftrack	Function to plot sftrack objects in ggplot
geom_sftrack.sftrack	Function to plot sftrack objects in ggplot
geom_sftrack.sftraj	Function to plot sftrack objects in ggplot
grouping-class	A class to group movement data
group_labels	Shows grouping labels created from the s_group and the c_grouping
group_labels.c_grouping	Shows grouping labels created from the s_group and the c_grouping
group_labels.sftrack	Shows grouping labels created from the s_group and the c_grouping
group_labels.sftraj	Shows grouping labels created from the s_group and the c_grouping
group_name	Display the levels of the sort index
group_names	Display the levels of the sort index
group_names.c_grouping	Display the levels of the sort index
group_names.sftrack	Display the levels of the sort index
group_names.sftraj	Display the levels of the sort index
is_linestring	Is a trajectory geometry a linestring or a point
make_c_grouping	A class to group movement data
make_step_geom	Calculate step geometries given a set of groupings, time, and geometries
make_s_group	A class to group movement data
merge_traj	Merge connected lines and create an sf object
new_sftrack	Define an sftrack
new_sftraj	Define an sftraj
plot.sftrack	Methods for plotting sftrack/sftraj
plot.sftraj	Methods for plotting sftrack/sftraj
plot_sftrack	Methods for plotting sftrack/sftraj
print.sftrack	Print methods for sftrack
print.sftraj	Print methods for sftraj
Print_sftrack_objects	Print methods for sftrack
Print_sftraj_objects	Print methods for sftraj
pts_traj	Return a list of sf_POINTS or a data.frame from a sftraj object
raccoon	Movements of two raccoons in an urban park in Florida
step_metrics	Calculates step metrics including distance, dt, dx, and dy.
step_recalc	recalculate step geometry
summary_sftrack	Summarize sftrack objects
traj_geom	Return a list of sf_POINTS or a data.frame from a sftraj object
which_duplicated	Which grouping/time stamp combos are duplicated.