MSstatsSelectFeatures {MSstats} | R Documentation

## Feature selection before feature-level data summarization

### Description

Feature selection before feature-level data summarization

### Usage

    MSstatsSelectFeatures(input, method, top_n = 3, min_feature_count = 2)

### Arguments

`input` | data.table
`method` | "all" / "highQuality", "topN"
`top_n` | number of features to use for "topN" method
`min_feature_count` | number of quality features for "highQuality" method

### Value

data.table

### Examples

    raw = DDARawData
    method = "TMP"
    cens = "NA"
    impute = TRUE
    MSstatsConvert::MSstatsLogsSettings(FALSE)
    input = MSstatsPrepareForDataProcess(raw, 2, NULL)
    input = MSstatsNormalize(input, "EQUALIZEMEDIANS")
    input = MSstatsMergeFractions(input)
    input = MSstatsHandleMissing(input, "TMP", TRUE, "NA", 0.999)
    input_all = MSstatsSelectFeatures(input, "all") # all features
    input_5 = MSstatsSelectFeatures(data.table::copy(input), "topN", top_n = 5) # top 5 features
    input_informative = MSstatsSelectFeatures(input, "highQuality") # feature selection

    head(input_all)
    head(input_5)
    head(input_informative)

[Package MSstats version 4.1.1 Index]