$,Dlf-method            $ indexing on the data part of the dlf
$<-,Dlf-method          $ assignment on the data part of the dlf
Dlf-class               Class encapsulating Daisy log file (dlf) data
[,Dlf-method            [ indexing on the data part of the dlf
[<-,Dlf-method          [ assignment on the data part of the dlf
[[,Dlf-method           [[ indexing on the data part of the dlf
[[<-,Dlf-method         [[ assignment on the data part of the dlf
animate_dlf             Animate a depth dependent time series from a
                        Dlf file
daisy_time_to_timestamp
                        Transform daisy time columns to a single
                        timestamp
depth_wide_to_long      Transform wide format time series to a long
                        format time series It is assumed that dlf@data
                        only contains 'time_name' columns and depth
                        columns with the format
                        <var_name>_<depth-below-surface> e.g. "q_100"
dir_names_to_columns    Remove directory part of dlf name and store it
                        in the data slot
drop_dir_from_names     Remove directory part from dlf names
filter_dlfs             Filter a list of Dlfs
mass_balance            Calculate mass balance
mass_balance_summary    Mass balance summary for a set of specified
                        variables
merge_dlfs              Merge a list of Dlfs
plot_dlf                Plot one or more variables from one or more
                        Dlfs. Each variable is plotted in a separate
                        subplot.
plot_dlf_depth          Plot one or more timepoints from one or more
                        dlfs containing depth dependent time series
plot_mass_balance       Plot Dlf object with mass balance calculation
                        in a control chart
read_dlf                Read a dlf file (Daisy log file) or a directory
                        of dlf files
read_dlf_dir            Walk a directory tree and read all dlf files in
                        it.
read_dlf_file           Read a dlf file (Daisy log file)
read_dlf_spawn          Walk a directory tree generated by daisy spawn,
                        read all dlf files in it, and merge similar log
                        files into one dlf.
strip_common_prefix_from_names
                        Strip common prefix from dlf names
subset_dlf              Select the subset of measurements in a specific
                        time range.
write_dlf               Write a dlf object to a file
