linear_interpolation_with_time_limit: Linearly interpolate timeseries time(x) onto new timesetep ti

In realTimeloads: Analyte Flux and Load from Estimates of Concentration and Discharge

Linearly interpolate timeseries time(x) onto new timesetep ti

Description

Linear interpolation limited by time since previous or following reading

Usage

linear_interpolation_with_time_limit(time, x, ti, threshold)

Arguments

time	time for x (time, POSIXct)
x	any quantity, for example discharge (double)
ti	time where time(x) will be interpolated to (time, POSIXct)
threshold	maximum duration where interpolation is allowed (hours)

Value

a data frame with time (ti), x interpolated from time(x) onto ti, and logical (ibad) if interpolation exceeded threshold

Author(s)

Daniel Livsey (2023) ORCID: 0000-0002-2028-6128

References

Dowle M, and others (2023). data.table: Extension of 'data.frame'. https://cran.r-project.org/web/packages/data.table

Examples

InputData <- realTimeloads::ExampleData
ADCP <- InputData$ADCP
Height <- InputData$Height
# Interpolate river height to ADCP time
time <- realTimeloads::ExampleData$Height$time
x <- realTimeloads::ExampleData$Height$Height_m
ti <-realTimeloads::ExampleData$ADCP$time
threshold <- 1
Output<- linear_interpolation_with_time_limit(time,x,ti,threshold)

realTimeloads documentation built on Oct. 18, 2023, 5:09 p.m.