Description Usage Arguments Details Value
Calculates step length, absolute angle (N=0), and turn angle between successive point locations
1 | AddStepLengthAndAngles(df, by, datetime, long, lat)
|
df |
dataframe with locations and datetime data |
by |
column name to use to split, analyze, and merge data, default is "id" |
long |
longitude, must be in UTM, default is "long_utm" |
lat |
latitude, must be in UTM, default is "lat_utm" |
Coordinates must be in identically-scaled units (e.g. UTM meters). If lat and long are in degrees, project coordinates to UTM with 'rgdal' package before running this function.
dataframe with "step_length", "abs_angle", and "turn_angle" columns
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