write_flow_data: Write a streamflow dataset as a .xlsx, .xls, or .csv file

In fasstr: Analyze, Summarize, and Visualize Daily Streamflow Data

Write a streamflow dataset as a .xlsx, .xls, or .csv file

Description

Write a daily streamflow data set to a directory. Can fill missing dates or filter data by years or dates before writing using given arguments. List data frame or HYDAT station number to write its entirety. Can write as .xls, .xlsx, or .csv file types. Writing as Excel file type uses the writexl package.

Usage

write_flow_data(
  data,
  dates = Date,
  values = Value,
  groups = STATION_NUMBER,
  station_number,
  water_year_start = 1,
  start_year,
  end_year,
  start_date,
  end_date,
  file_name,
  fill_missing = FALSE,
  digits
)

Arguments

data	Data frame of daily data that contains columns of dates, flow values, and (optional) groups (e.g. station numbers). Leave blank or set to NULL if using station_number argument.
dates	Name of column in data that contains dates formatted YYYY-MM-DD. Only required if dates column name is not 'Date' (default). Leave blank or set to NULL if using station_number argument.
values	Name of column in data that contains numeric flow values, in units of cubic metres per second. Only required if values column name is not 'Value' (default). Leave blank if using station_number argument.
groups	Name of column in data that contains unique identifiers for different data sets, if applicable. Only required if groups column name is not 'STATION_NUMBER'. Function will automatically group by a column named 'STATION_NUMBER' if present. Remove the 'STATION_NUMBER' column beforehand to remove this grouping. Leave blank if using station_number argument.
station_number	Character string vector of seven digit Water Survey of Canada station numbers (e.g. "08NM116") of which to extract daily streamflow data from a HYDAT database. Requires tidyhydat package and a HYDAT database. Leave blank if using data argument.
water_year_start	Numeric value indicating the month (1 through 12) of the start of water year for analysis. Default 1.
start_year	Numeric value of the first year of data to write. Leave blank or set well before start date (i.e. 1800) to use from the first year of the source data.
end_year	Numeric value of the last year of data to write. Leave blank or set well after end date (i.e. 2100) to use up to the last year of the source data.
start_date	Date (YYYY-MM-DD) of first date of data to write. Leave blank or set well before start date (i.e. 1800-01-01) if all dates required.
end_date	Date (YYYY-MM-DD) of last date of data to write. Leave blank or set well after end date (i.e. 2100-12-31) if all dates required.
file_name	Character string naming the output file. If none provided, a default file name (with .xlsx) is provided (see "Successfully created" message when using function for file name).
fill_missing	Logical value indicating whether to fill dates with missing flow data with NA. Default FALSE.
digits	Integer indicating the number of decimal places or significant digits used to round flow values. Use follows that of base::round() digits argument.

Examples

## Not run: 

# Working examples:

# Write data from a data frame
flow_data <- tidyhydat::hy_daily_flows(station_number = "08NM116")
write_flow_data(data = flow_data, 
                file_name = "Mission_Creek_daily_flows.xlsx")

# Write data directly from HYDAT
write_flow_data(station_number = "08NM116", 
                file_name = "Mission_Creek_daily_flows.xlsx")

# Write data directly from HYDAT and fill missing dates with NA
write_flow_data(station_number = "08NM116", 
                file_name = "Mission_Creek_daily_flows.xlsx",
                fill_missing = TRUE)


## End(Not run)

fasstr documentation built on Sept. 30, 2024, 9:24 a.m.