RelativeWaterDeficit: Relative Water Deficit (RWD)

In pvldcurve: Simplifies the Analysis of Pressure Volume and Leaf Drying Curves

Description

Calculates relative water deficit (%)

Usage

RelativeWaterDeficit(data, fresh.weight = "fresh.weight",
  dry.weight = "dry.weight",
  fresh.weight.saturated = "fresh.weight.saturated")

Arguments

data	data frame with columns of equal length containing at least columns with the fresh weight (g), the dry weight (g) and the saturated fresh weight (g)
fresh.weight	optional name of the column in data containing the numeric fresh weight values (g); default: fresh.weight
dry.weight	optional name of the column in data containing the numeric dry weight values (g); default: dry.weight
fresh.weight.saturated	optional name of the column in data containing the numeric saturated fresh weight values (g); default: fresh.weight.saturated

Details

Relative water deficit (%) is calculated as:

RWD = 100 - 100 * ((FW - DW) (FWs - DW)^-1)

whereas FW = fresh weight, DW = dry weight and FWs = fresh weight at water saturation.

Value

the original data frame extended by a numeric column with the relative water deficit (RWD) (%).

Examples

# get example data
df <- leaf_drying_data

# extend df by RWD
df_with_RWD <- RelativeWaterDeficit(df)

pvldcurve documentation built on Oct. 23, 2020, 8:09 p.m.