package oranger

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oranger
- Oranger
  - RF
  - Utls

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type filename = string

type mode =

| Regression
| Classification

val train : 
  ?debug:bool ->
  ?nprocs:int ->
  mode ->
  int ->
  filename ->
  string ->
  filename ->
  bool

train ~debug ~nprocs mode nb_trees data_fn dep_var_name out_fn will train a Random Forests model with nb_trees, reading training data from data_fn and using mode (either Regression or Classification). dep_var_name is the name of the column holding the target value (you want to predict that value with your model later on) in data_fn. data_fn is a space-separated CSV file, with first line as its header (i.e. the names of all columns). If training in parallel (nprocs > 1) then nprocs threads are used. The trained model will be stored in out_fn. The debug flag controls the verbosity of the underlying C++ software (ranger) which is really doing all the work.

val predict : 
  ?debug:bool ->
  ?nprocs:int ->
  int ->
  filename ->
  filename ->
  (float * float) list option

predict ~debug ~nprocs nb_trees data_fn model_fn will optionally return a list of (pred_val, stddev). I.e. predicted values along with their standard deviation. The debug flag controls the verbosity of the underlying C++ software (ranger). If predicting in parallel (nprocs > 1), then nprocs threads are used. nb_trees is the number of trees of your trained model. data_fn is the CSV file holding your test data. The column in data_fn holding the target value will be ignored. model_fn is a file where you previously stored a (trained) model.