plotGRDCtimeseries: Plot a GRDC time series
In NaiaraLopezRojo/globalIRmap: What the Package Does (One Line, Title Case)

Description Usage Arguments Details Value

Creates a plot of daily discharge (m^3/s) for a GRDC gauging station, with flags for 0-flow values and potential outliers. Save plot to png if path is provided.

plotGRDCtimeseries(
  GRDCgaugestats_record,
  outpath = NULL,
  maxgap = 366,
  showmissing = FALSE
)

`GRDCgaugestats_record`	data.table of formatted daily discharge records for a single GRDC station. In this project, e.g. the output from `comp_GRDCdurfreq`. Must contain at least five columns: `GRDC_NO, dates, Original, flag_mathis, missingdays` Alternatively, a named list or vector with a column called "path" towards a standard GRDC text file containing daily discharge records for a single gauging station.
`outpath`	(character) path for writing output png plot (default is no plotting).
`maxgap`	(integer) threshold number of missing daily records to consider a calendar year unfit for analysis.
`showmissing`	(logical) whether to show records in years with number of missing daily records beyond `maxgap`.

the output graphs show the time series of daily streamflow values for the station. For the flagging criteria, see documentation for flagGRDCoutliers.

The y-axis is square-root transformed.
Individual points show daily discharge values (in m^3/s).
blue lines link daily values (which may result in unusual patterns due to missing years).
red points are zero-flow flow values.
green points are non-zero flow daily values statistically flagged as potential outliers .
black points are zero-flow values flagged as potential outliers.