query_haplotype_frequencies {immunotation} | R Documentation

## Query haplotype frequencies

### Description

Query haplotype frequencies

### Usage

    query_haplotype_frequencies(
      hla_selection = NA,
      hla_population = NA,
      hla_country = NA,
      hla_region = NA,
      hla_ethnic = NA,
      hla_sample_size_pattern = NA,
      hla_sample_size = NA
    )

### Arguments

`hla_selection` | Alleles that will be used to build the haplotype query. One entry per locus. If no entry for a given locus, the function will search for haplotypes that do not include specifications for this locus. If any allele for a given locus should be considered, the list entry should be "A*" or other locus in same format.
`hla_population` | Numeric identifier of the population that will be used for filtering. Thie 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.

### Value

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

### Examples

    # works only for one haplotype at a time
    query_haplotype_frequencies(hla_selection = c("A*02:01", "B*", "C*"),
    hla_region = "Europe")

[Package immunotation version 1.0.1 Index]