`R/2_1_textTrain.R`

`textTrain.Rd`

Train word embeddings to a numeric (ridge regression) or categorical (random forest) variable.

`textTrain(x, y, force_train_method = "automatic", ...)`

- x
Word embeddings from textEmbed (or textEmbedLayerAggreation). Can analyze several variables at the same time; but if training to several outcomes at the same time use a tibble within the list as input rather than just a tibble input (i.e., keep the name of the wordembedding).

- y
Numeric variable to predict. Can be several; although then make sure to have them within a tibble (this is required even if it is only one outcome but several word embeddings variables).

- force_train_method
Default is "automatic", so if y is a factor random_forest is used, and if y is numeric ridge regression is used. This can be overridden using "regression" or "random_forest".

- ...
Arguments from textTrainRegression or textTrainRandomForest the textTrain function.

A correlation between predicted and observed values; as well as a tibble of predicted values (t-value, degree of freedom (df), p-value, alternative-hypothesis, confidence interval, correlation coefficient).

```
# Examines how well the embeddings from "harmonytext" can
# predict the numeric variable "hilstotal" in the pre-included
# dataset "Language_based_assessment_data_8".
if (FALSE) {
trained_model <- textTrain(
x = word_embeddings_4$texts$harmonytext,
y = Language_based_assessment_data_8$hilstotal
)
# Examine results (t-value, degree of freedom (df), p-value,
# alternative-hypothesis, confidence interval, correlation coefficient).
trained_model$results
}
```