I have some values imported from excel about the annual sell of a product, with 3 var:
month, price, sold items
I have seen how to plot a chart using curve fitting tool but I need to define a math expression that can describe the relation between these variables.
How can I do this in matlab? Is there any tool that can achieve this automatically. If you look at the chart should exist a way to use an approximation that can mime the behavior(maybe with spline functions or n-point-hermit), is enough one approximated expression of the model that for the 3 var replicates a similar graph if plotted.