View source: R/global_validation.R
global_validation | R Documentation |
Calculate validation metric using all held back predictions at once
global_validation(model)
model |
an object of class |
Relevant when folds are not representative for the entire area of interest. In this case, metrics like R2 are not meaningful since it doesn't reflect the general ability of the model to explain the entire gradient of the response. Comparable to LOOCV, predictions from all held back folds are used here together to calculate validation statistics.
regression (postResample
) or classification (confusionMatrix
) statistics
Hanna Meyer
CreateSpacetimeFolds
## Not run:
library(caret)
data(cookfarm)
dat <- cookfarm[sample(1:nrow(cookfarm),500),]
indices <- CreateSpacetimeFolds(dat,"SOURCEID","Date")
ctrl <- caret::trainControl(method="cv",index = indices$index,savePredictions="final")
model <- caret::train(dat[,c("DEM","TWI","BLD")],dat$VW, method="rf", trControl=ctrl, ntree=10)
global_validation(model)
## End(Not run)
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