query_allele_frequencies {immunotation} | R Documentation

## Query allele frequencies

### Description

Query allele frequencies

### Usage

    query_allele_frequencies(
      hla_locus = NA,
      hla_selection = NA,
      hla_population = NA,
      hla_country = NA,
      hla_region = NA,
      hla_ethnic = NA,
      hla_sample_size_pattern = NA,
      hla_sample_size = NA,
      standard = "a"
    )

### Arguments

`hla_locus` | HLA locus that will be used for filtering data. A, B, C, DPA1, DPB1, DQA1, DQB1, DRB1
`hla_selection` | Allele that will be used for filtering data. e.g. A*01:01
`hla_population` | Numeric identifier of the population that will be used for filtering. This identifier is defined by the Allele Frequency Net Database.
`hla_country` | Country of interest (e.g. Germany, France, ...).
`hla_region` | Geographic region of interest (e.g. Europe, North Africa, ...)
`hla_ethnic` | Ethnic origin of interest (e.g. Caucasoid, Siberian, ...)
`hla_sample_size_pattern` | Keyword used to define the filtering for a specific population size. e.g. "bigger_than", "equal", "less_than", "less_equal_than", "bigger_equal_than"
`hla_sample_size` | Integer number used to define the filtering for a specific population size, together with the hla_sample_size_pattern argument.
`standard` | Population standards, as defined in the package vignette. "g" - gold, "s" - silver, "a" - all

### Value

data.frame object containing the result of the allele frequency query

### Examples

    # select frequencies of the A*02:01 allele,
    # for gold standard population with more than 10,000 individuals
    sel <- query_allele_frequencies(hla_selection = "A*02:01",
    hla_sample_size_pattern = "bigger_than", hla_sample_size = 10000,
    standard="g")

[Package immunotation version 1.2.0 Index]