Filter the complete document-feature matrix to retain all features with occurence higher than the lowest occurence of country tokens. This function mainly serves to limit the size of the document-feature matrix

Filter the complete document-feature matrix to retain all features with occurence higher than the lowest occurence of country tokens. This function mainly serves to limit the size of the document-feature matrix

filter_dfm(obj_dfm, country_tokens = NULL)

Arguments

obj_dfm	a document-feature matrix
country_tokens	the tokens with which the document-feature matrix is filtered

Value

a filtered document-feature matrix