Please do not give solution in image format thanku Suppose we want to use the caret library to tune a random forest model.We want to repeat 5 times a cross-validation with 8 folds, and use 800 trees.We want to explore the following values of the mtry hyperparameter: 1,3 and 10.Which of the following codes looks like the correct one to run?currentmodel <- train(Creditability-...data - dtrain,method = 'rf,metric = 'Accuracy'.tuneGrid = expand.grid(.mtry = c(1,3,10)),trControl - trainControl(method='cv',number = 5repeats = 8,ntree = ntree)currentmodel < - train(Creditability.data-dtrain,method = 'rf',metric'Accuracy',tuneGrid = expand.grid(.mtry = c(1,3,10)),trControl = trainControl(method = 'repeatedcv',number = 8,repeats = 5,search = 'grid'),ntree = 800)currentmodel <-train(Creditability...data-dtrain,method = 'caret',metric = 'Accuracy,tuneGrid = expand.grid(.mtry = c(10,3,10)),trControl - trainControl(method= 'repeatedcv',number = 8,repeats = 5,search 'random'),ntree = 800)

Import the caret library.Define the training data and the response variable.Specify the method,…

Answered: Suppose we want to use the caret…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Dr. Pagels is a mammalogist who studies meadow and common voles. He frequently traps the moles and has noticed what appears to be a preference for a peanut butter-oatmeal mixture by the meadow voles vs apple slices are usually used in traps, where the common voles seem to prefer the apple slices. So he conducted a study where he used a peanut butter-oatmeal mixture in half the traps and the normal apple slices in his remaining traps to see if there was a food preference between the two different voles. To test for independence, we need to calculate the Chi-square statistic. These are the data that Dr. Pagels collected ( the attachment): You will want to use Excel (or Google sheets) to do the calculations for you, so that your answers are exact (they need to be exact to get credit. Here is a Google sheet to get you started. When transferring your answers, make sure you carry them out to AT LEAST SIX SIGNIFICANT FIGURES unless otherwise stated. Round your final answer to 4 decimal…
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