Load metabolite data from an excel file
load_excel(
path,
data_sheet = NULL,
feature_sheet = NULL,
sample_sheet = NULL,
featureID = "CHEM_ID",
sampleID = "PARENT_SAMPLE_NAME"
)Path to the xls/xlsx file.
A integer of xlsx sheet number for metabolite measurements (peak area data or normalized data, sample [row] * feature [column])
A integer of xlsx sheet number for metabolite annotation (chemical annotation)
A integer of xlsx sheet number for sample annotation (sample meta data)
a character of the metabolite ID column (in feature file and the column names of data file), default: CHEM_ID (provided from Metabolon file)
a character of the sample ID column (in sample file and the first column of data file), default: PARENT_SAMPLE_NAME (provided from Metabolon file)
A Metabolite object with slots: assayData, featureData, and sampleData.