Model Predictions

Compute proportion by species fishing mode and ocean

tunapredict(
  sample_data,
  allset_data,
  Ntree = 1000,
  Nmtry = 2,
  Nseed = 7,
  min_node = 5,
  target_period
)

Arguments

sample_data

(data frame) Data used for the modelling. Output table from process 3.1.

allset_data

(data frame) Data used for prediction.Output table from process 3.4.

Ntree

(integer) Number of trees to grow. This should not be set to too small a number, to ensure that every input row gets predicted at least a few times. The default value is 1000.

Nmtry

(integer) Number of variables randomly sampled as candidates at each split. The default value is 2.

Nseed

(integer) Set the initial seed for the modelling. The default value is 7.

min_node

(integer) Minimum size of terminal nodes. Setting this number larger causes smaller trees to be grown (and thus take less time).The default value is 5.

target_period

(integer) Time period for the predictions in year. Default is the year of the data to predict