Calculate Change Rates Between Periods

Computes annual change rates (absolute and relative) for indicators across temporal periods.

Usage

calculate_change_rate(
  temporal,
  indicators = "all",
  period_start = NULL,
  period_end = NULL,
  type = c("both", "absolute", "relative")
)

Arguments

temporal

A nemeton_temporal object created by nemeton_temporal.

indicators

Character vector of indicator names to analyze. Default "all" uses all indicators present in the temporal dataset.

period_start

Character. Label of starting period. Default uses first period.

period_end

Character. Label of ending period. Default uses last period.

type

Character. Type of change rate: "absolute", "relative", or "both". Default "both".

Value

A nemeton_units sf object with added columns:

<indicator>_rate_abs

Absolute change per year (e.g., tC/ha/year)

<indicator>_rate_rel

Relative change per year (%/year)

Examples

if (FALSE) { # \dontrun{
# Calculate carbon change rates
rates <- calculate_change_rate(
  temporal,
  indicators = c("C1", "W3"),
  type = "both"
)

# View change rates
summary(rates[, c("C1_rate_abs", "C1_rate_rel")])
} # }