data <- read.table("D:/USUARIO/OneDrive/Documents/Analisis de datos/Metaboanalist/importan Features POS/composite spectra.csv", header = TRUE, sep = ",")
The variable data reads the file composite spectra.csv in the directory D:/USUARIO/OneDrive/Documents/Analisis de datos/Metaboanalist/importan Features POS/composite spectra.csv and sotres the data in the variable data as a dataframe (because of the .table)