Questions
Define regression and how you can implement in R.
How do you find the coefficient of determination for linear regression / multiple regression in R?
How do you find the confidence interval for a prediction fitted with linear regression / multiple regression in R?
How will you detect multicollinearity in R in multiple regression?
What is the significance of ANOVA and how will you use it to compare the results of two linear regression models?
How do you perform feature selection in R for multiple linear regression?
How do you rank significance attributes in a multiple linear regression model in R?
How do you install the
waveslim
package and load it into the R workspace?How do you plot a time series and extract the head and tail of the time series?
How would you know the class of a variable created by the
fft
function?How do you use the dwt function using any given filter and take inverse dwt?
How do you extract the real and imaginary parts of a series?
How would you use fast Fourier transformation...