aggregate_metadata {ISAnalytics} | R Documentation

## Performs aggregation on metadata contained in the association file.

### Description

Groups metadata by the specified grouping keys and returns a summary of info for each group. For more details on how to use this function: `vignette("Working with aggregate functions", package = "ISAnalytics")`

### Usage

    aggregate_metadata(
      association_file,
      grouping_keys = c("SubjectID", "CellMarker", "Tissue", "TimePoint"),
      aggregating_functions = default_meta_agg(),
      import_stats = lifecycle::deprecated()
    )

### Arguments

`association_file` | The imported association file (via linkimport_association_file)
`grouping_keys` | A character vector of column names to form a group
`aggregating_functions` | A data frame containing specifications of the functions to be applied to columns in the association file during aggregation. It defaults to default_meta_agg. The structure of this data frame should be maintained if the user wishes to change the defaults.
`import_stats` | The import of VISPA2 stats has been moved to its dedicated function, see import_Vispa2_stats.

### Value

An aggregated data frame

### See Also

Other Aggregate functions: `aggregate_values_by_key()`, `default_meta_agg()`

### Examples

    op <- options("ISAnalytics.widgets" = FALSE, "ISAnalytics.verbose" = FALSE)
    path_AF <- system.file("extdata", "ex_association_file.tsv",
        package = "ISAnalytics"
    )
    root_correct <- system.file("extdata", "fs.zip", package = "ISAnalytics")
    root_correct <- unzip_file_system(root_correct, "fs")
    association_file <- import_association_file(path_AF, root_correct,
        dates_format = "dmy"
    )
    aggregated_meta <- aggregate_metadata(association_file)
    options(op)

[Package ISAnalytics version 1.2.1 Index]