exclude: Exclude Values

In lsigut/openeddy: Post-process eddy covariance data with ease

Exclude Values

Description

Interactive plots are used for identification and flagging of data for exclusion based on the visual inspection.

Usage

exclude(x, qc_x = NULL, y = NULL, z = NULL, name_out = "-", win_size = 672)

Arguments

x	A numeric vector with values to inspect.
qc_x	An integer vector in the range 0 - 2 providing quality control information about x.
y, z	A numeric vector with values of auxiliary variable helping with the interpretation of x.
name_out	A character string providing varnames attribute value of the output.
win_size	An integer. Number of x values displayed per plot.

Details

Six options are available during the interactive session.

1. flag values: select interval of values to exclude or use double-click to flag single value.

2. undo last: allows to change the user flagging input back to the state before last flagging.

3. refresh plots: apply current user flagging input to the plots. It removes excluded points and affects y-axis range or it can show again excluded points if option 2 (undo last) was applied before.

4. next plot.

5. jump to plot: any plot within the existing range (see as a plot title) can be selected.

6. finalize: finish the flagging and return the results.

The interactive session will be finished successfully also when option 4 (next plot) is executed while at the last plot.

Value

An integer vector with attributes "varnames" and "units".

See Also

check_manually

Examples

## Not run: 
# prepare mock data
set.seed(87)
my_var <- sin(seq(pi / 2, 2.5 * pi, length = 48)) * 10
my_var[my_var > 5] <- 5
PAR <- (-my_var + 5) * 100
Tair <- rep(-cos(seq(0, 2 * pi, length = 48)), 14)
Tair <- Tair * 2 + 15 + seq(0, 5, length = 48 * 14)

# combine into data frame
a <- data.frame(
  my_var = my_var + rnorm(48 * 14),
  my_qc = sample(c(0:2, NA), 672, replace = TRUE, prob = c(5, 3, 2, 1)),
  PAR = PAR,
  Tair = Tair
)

# include spikes
a$my_var[c(152, 479)] <- c(231, -2000)

# flag data manually
exclude(x = a$my_var, qc_x = a$my_qc)
exclude(x = a$my_var, qc_x = a$my_qc, y = a$PAR)
exclude(x = a$my_var, qc_x = a$my_qc, y = a$PAR, z = a$Tair)

## End(Not run)

lsigut/openeddy documentation built on Jan. 15, 2025, 8:14 a.m.