log.loss: Log Loss mlr custom measure
In dfalbel/mymlr: My mlr Extensions
Description
Usage
Format
Examples
Description
Log Loss mlr custom measure
Usage
1
Format
An object of class Measure of length 10.
Examples
1
2
3
4
5
6
7
8
9
## Define tasks
iris$Species <- as.integer(iris$Species == "virginica")
lrn = makeLearner("classif.nnet", predict.type = "prob")
iris.task <- makeClassifTask(data = iris, target = "Species")
## Train a learner and make predictions
mod = train(learner = lrn, iris.task)
pred = predict(mod, task = iris.task)
## Calculate the performance using the new measure
performance(pred, measures = log.loss)
dfalbel/mymlr documentation built on May 15, 2019, 5:09 a.m.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Description Usage Format Examples
Description
Log Loss mlr custom measure
Usage
1 |
Format
An object of class Measure of length 10.
Examples
1 2 3 4 5 6 7 8 9 | ## Define tasks
iris$Species <- as.integer(iris$Species == "virginica")
lrn = makeLearner("classif.nnet", predict.type = "prob")
iris.task <- makeClassifTask(data = iris, target = "Species")
## Train a learner and make predictions
mod = train(learner = lrn, iris.task)
pred = predict(mod, task = iris.task)
## Calculate the performance using the new measure
performance(pred, measures = log.loss)
|
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Embedding an R snippet on your website
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.