Use Fisher’s linear discriminant to classify years in Table A.3 as either El Nino or non-El Nino, on the basis of the corresponding temperature and pressure data. a. What is the discriminant vector,...

Use Fisher’s linear discriminant to classify years in Table A.3 as either El Nino or non-El Nino, on the basis of the corresponding temperature and pressure data.

a. What is the discriminant vector, scaled to have unit length?

b. Which, if any, of the El Nino years have been misclassified?

c. Assuming bivariate normal distributions, repeat part (b) accounting for unequal prior probabilities.