h2o.explain_row | R Documentation |
Explain the behavior of a model or group of models with respect to a single row of data. The function returns a list of explanations, which are individual units of explanation such as a partial dependence plot or a variable importance plot. Most of the explanations are visual (ggplot plots). These plots can also be created by individual utility functions as well.
h2o.explain_row(
object,
newdata,
row_index,
columns = NULL,
top_n_features = 5,
include_explanations = "ALL",
exclude_explanations = NULL,
plot_overrides = NULL
)
object |
A list of H2O models, an H2O AutoML instance, or an H2OFrame with a 'model_id' column (e.g. H2OAutoML leaderboard). |
newdata |
An H2OFrame. |
row_index |
A row index of the instance to explain. |
columns |
A vector of column names or column indices to create plots with. If specified parameter top_n_features will be ignored. |
top_n_features |
An integer specifying the number of columns to use, ranked by variable importance (where applicable). |
include_explanations |
If specified, return only the specified model explanations. (Mutually exclusive with exclude_explanations) |
exclude_explanations |
Exclude specified model explanations. |
plot_overrides |
Overrides for individual model explanations, e.g.,
|
List of outputs with class "H2OExplanation"
## Not run:
library(h2o)
h2o.init()
# Import the wine dataset into H2O:
f <- "https://h2o-public-test-data.s3.amazonaws.com/smalldata/wine/winequality-redwhite-no-BOM.csv"
df <- h2o.importFile(f)
# Set the response
response <- "quality"
# Split the dataset into a train and test set:
splits <- h2o.splitFrame(df, ratios = 0.8, seed = 1)
train <- splits[[1]]
test <- splits[[2]]
# Build and train the model:
aml <- h2o.automl(y = response,
training_frame = train,
max_models = 10,
seed = 1)
# Create the explanation for whole H2OAutoML object
exa <- h2o.explain_row(aml, test, row_index = 1)
print(exa)
# Create the explanation for the leader model
exm <- h2o.explain_row(aml@leader, test, row_index = 1)
print(exm)
## End(Not run)
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