Get CV values.

get_cv_data() is a wrapper function to return cv (coefficient of variation) calculated with filter_cv().

Usage

get_cv_data(mpactr_object)

Arguments

mpactr_object

The mpactr object that is created by calling the import_data() function.

Value

a data.table reporting the mean and median coefficient of variation for each input ion.

Examples

data <- import_data(example("coculture_peak_table.csv"),
  example("metadata.csv"),
  format = "Progenesis"
)

data_filter <- filter_cv(data,
  cv_threshold = 0.01,
  cv_param = "median"
)
#> ℹ Parsing 1303 peaks for replicability across technical replicates.
#> ✔ 1298 ions failed the cv_filter filter, 5 ions remain.

cv <- get_cv_data(data_filter)
head(cv)
#>    Compound    mean_cv  median_cv
#>      <char>      <num>      <num>
#> 1:        1 0.21346035 0.05760617
#> 2:        2 0.91799997 0.91799997
#> 3:        3 0.90848851 0.90848851
#> 4:        4 0.06782583 0.06782583
#> 5:        5 0.02727037 0.02727037
#> 6:        6 0.09005716 0.09005716