Answer Posted / Siddhant Singh Chikara

The cv.im() function in R programming is used for cross-validation with image data (including time series data represented as matrices). It's often used to estimate the generalization error of a model by measuring its performance on various subsets of the available data.

How can you verify if a given object “X” is a matrix data object?

188

Given a vector of numbers, how would you turn the values into scientific notation?

172

How will you convert a factor variable to numeric in r language?

213