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# Copyright 2015-2017 Philipp Thomann
#
# This file is part of liquidSVM.
#
# liquidSVM is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# liquidSVM is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with liquidSVM. If not, see <http://www.gnu.org/licenses/>.
#
require(liquidSVM)
context("liquidSVM-mlr")
orig <- options(liquidSVM.warn.suboptimal=FALSE, liquidSVM.default.threads=1)[[1]]
hand_err_name <- 'result'
test_that("mlr-regr",{
set.seed(123)
skip_if_not(require(mlr))
## Define a regression task
task <- makeRegrTask(id = "trees", data = trees, target = "Volume")
## Define the learner
lrn <- makeLearner("regr.liquidSVM", display=0)
## Train the model use mlr::train to get the correct train function
model <- train(lrn,task)
pred <- predict(model, task=task)
expect_lt(performance(pred),10)
})
test_that("mlr-class",{
set.seed(123)
skip_if_not(require(mlr))
## Define a classification task
task <- makeClassifTask(id = "iris", data = iris, target = "Species")
## Define the learner
lrn <- makeLearner("classif.liquidSVM", display=0)
model <- train(lrn,task)
pred <- predict(model, task=task)
expect_lt(performance(pred),0.05)
})
test_that("mlr-class-prob",{
set.seed(123)
skip_if_not(require(mlr))
## Define a classification task
task <- makeClassifTask(id = "iris", data = iris, target = "Species")
## Define the learner
lrn <- makeLearner("classif.liquidSVM", display=0, predict.type='prob')
model <- train(lrn,task)
pred <- predict(model, task=task)
performance(pred)
expect_lt(performance(pred),0.05)
})
options(liquidSVM.warn.suboptimal=orig)
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