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Calculates the median peptide intensity per proteinGroup per sample.

Source: R/peptide_functions.R
get_median_intensities_prMatrix.Rd

The median peptide intensity (MPI) can be used instead of iBAQ as proxy for protein abundancy.

Usage

get_median_intensities_prMatrix(
  pr_matrix,
  id_column = "Protein.Group",
  peptide_level = "Stripped.Sequence"
)

Arguments

pr_matrix

The report.pr_matrix file

id_column

The column in pr_matrix that is used as identifier in the output file

peptide_level

The column in pr_matrix that is used to aggregate peptide data

Value

a matrix with median peptide intensities per sample per proteinGroup

Examples

mpi <- get_median_intensities_prMatrix(report.pr_matrix)