interpolate_values: Interpolate values

In WDNR-Water-Use/CSLSchem: CSLS Water Chemistry Analysis

Description

Interpolates values to a daily time step given start and end date of desired timeseries. Can summarize at a larger time step (e.g., monthly) if desired using final_dt flag.

Usage

interpolate_values(
  df,
  group_vars,
  val_var,
  start_date,
  end_date,
  final_dt = "day"
)

Arguments

df	data frame with water chemistry information for tracer/solute. Includes: * **date:** date of measurement * **group1 and/or group2:** grouping for measurements * **value:** value of measurement
group_vars	name of group1 and/or group2 columns, for identifying and renaming them.
val_var	name of value column, for identifying and renaming it
start_date	start date of interpolated timeseries (POSIX). If earlier than earliest date in df, values before earliest date in df will have value equal to earliest date in df.
end_date	end date of interpolated timeseries (POSIX). If later than latest date in df, values after latest date in df will have value equal to latest date in df.
final_dt	unit of time to use for interpolation. Defaults to "day", can also be "month". Used as the unit for lubridate::floor_date

Value

df, a data frame with interpolated values.

WDNR-Water-Use/CSLSchem documentation built on July 3, 2020, 10:51 a.m.