RelativeWaterDeficit: Relative Water Deficit (RWD)

In pvcurveanalysis: Analysis of Pressure Volume Curves

Description

Calculates relative water deficit (%)

Usage

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

Arguments

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

Details

Relative water deficit (%) is calculated as:

RWD = 100 - 100 * ((FM - DM) (FMs - DM)^-1)

whereas FM = fresh mass, DM = dry mass and FMs = fresh mass at water saturation.

Value

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

Examples

# get example data
df <- pressure_volume_data

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

pvcurveanalysis documentation built on Oct. 13, 2021, 5:08 p.m.