createDistanceTable: Create a Distance Table
In jbrottrager/stylcoR: Stylistic Corpus Analysis

This function creates a distance table by combining several functions

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createDistanceTable(path_to_corpus, freq_dist, n_gram_size = 1,
  culling_level = 20, cut_off = 500, zscores_transformation = NULL,
  distance_measure = "burrows-delta")

`path_to_corpus`	path to the corpus directory
`freq_dist`	frequency distribution matrix
`n_gram_size`	size of ngrams - possible values: 1 & 2; default is 1
`culling_level`	gives the opportunity to exclude sparse words: a culling level of 20 means that only words which occur in at least 20 texts in the corpus are considered in the analysis, default = 20
`cut_off`	number of features which will be considered for the analysis, default = 500
`zscores_transformation`	declares whether the zscores should be normalised or ternarised, default = NULL
`distance_measures`	determines the distance measure which is used for the calculation of the distance table, default = "burrows-delta"