why is it necessary to sample the blue line daily what can i model with the red line what is the purpose of the blue line and the red line what is an red or blue line based on inflation what is the mdas regression model used for what is the purpose of the red line and the blue line what does the red line do compared to the blue line what is the red line on a period analysis what is the difference in red line and blue line what is the blue line in the inflation graph what is the difference between red line and blue line what can be used in a regression model what is the meaning of the red line and the blue line what are the different sampling frequencies what is the difference between blue line and red line what are the two variables of inflation what are the 2 time series of the same phenomena and why do they have different sampling frequencies what is red line what are two different time series that are tracking the same phenomenon, id what is the purpose of the red line