Begin loop to generate a large dataframe with minutely particle positions
Initialize long df for single particle movements for every particle
Generate a vector of evenly spaced time increments
Use 'spline' to generate lat/lon particle positions
Repeat the particle ID within the df
Repeat the particle start hour within the df
Bind vectors into a data frame
Bind 'df_from_vectors' df into long df 'particle_df'
Modify whitespace and indentation