The attribute hierarchy provides a top-down data organization that is used for two main purposes: and drill-down/roll-up data analysis.

Using least squares fitting, you are to fit the data sets to the following models and solve for the parameters ai , where i is the index of the parameter. the input/output data for the systems are linked in the bblearn site. for each of the systems use matlab to plot the supplied data vs. the model fit on one plot. include your code in the solutions. (a) linear fit "lineardata.mat" y=a1x^3 + a2x^2 + a3x + a4 (b) plant fit "plantdata.mat g(s) = a1/(s + a2)

Eva has many contacts on the professional networking site she uses which contacts are considered second degree

In a compound condition, both conditions on either side of the logical operator and must be true for the overall condition to be true. a: true b: false