RelativeWaterContent {pvldcurve}

Relative Water Content (RWC)

Description

Calculates relative water content (RWC, %)

Usage

RelativeWaterContent(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 content (%) is calculated as:

RWC = 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 content (RWC) (%).

Examples

# get example data
df <- leaf_drying_data

# extend df by RWC
df_with_RWC <- RelativeWaterContent(df)