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Add example of applying textfeatures() output to a new dataset. #10

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Add example of applying textfeatures() output to a new dataset. #10

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9 changes: 8 additions & 1 deletion R/textfeatures.R
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,9 @@
#' @param normalize Logical indicating whether to normalize (mean center,
#' sd = 1) features. Defaults to TRUE.
#' @param newdata If a textfeatures_model is supplied to text, supply this with
#' new data to which you would like to apply the textfeatures_model.
#' new data to which you would like to apply the textfeatures_model. See examples
#' for how to extract the textfeatures_model from a previous \code{textfeatures()}
#' call.
#' @param verbose A single logical for printing logging messages as work
#' progresses.
#' @return A tibble data frame with extracted features as columns.
Expand Down Expand Up @@ -53,6 +55,11 @@
#' ## get text features of a data frame with "text" variable
#' textfeatures(df)
#'
#' ## Extract a `textfeatures` model for use on another dataset.
#' tf <- textfeatures(trump_tweets)
#' tf_model <- attr(tf, "tf_export", exact = TRUE)
#' textfeatures(tf_model, newdata = df$text)
#'
#' @export
textfeatures <- function(text,
sentiment = TRUE,
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