PhysioIndexR (version 0.1.0)

WMFVST: Weighted Mean Membership Function Value for Stress Tolerance (WMFVST)

Description

Its a composite measure which computes the weighted mean of MFVST values (0–1 range) for each genotype across multiple stress indices, considering whether higher or lower values are better.

Usage

WMFVST(data)

Value

A data frame with Gen and its Weighted Mean MFVST (WMFVST).

Arguments

data

A data frame containing genotype IDs (Gen) and MFVST values for the indices (GMP, HM, MP, MRP, PYR, RSI, SSPI, STI, TOL, YI, YSI), each within the range of 0 to 1.

Details

The Weighted Mean MFVST for genotype i is: $$WMFVST_i = \frac{\sum_{j=1}^{k} (MFVST_{ij} \times R_{ij})} {\sum_{j=1}^{k} R_{ij}}$$ where \(MFVST_{ij}\) is the MFVST value of genotype i for index j, and \(R_{ij}\) is its rank, determined by whether higher or lower values are favorable.

Examples

set.seed(123)
df <- data.frame(
  Gen = paste0("G", 1:5),
  GMP  = runif(5),
  HM   = runif(5),
  MP   = runif(5),
  MRP  = runif(5),
  PYR  = runif(5),
  RSI  = runif(5),
  SSPI = runif(5),
  STI  = runif(5),
  TOL  = runif(5),
  YI   = runif(5),
  YSI  = runif(5)
)
WMFVST(df)