I got two columns of data in excel: current (I) and voltage (V). What i want to do the following things:

1. read the data set into Maple 12.

2. plot the current vs voltage

3. Fit the plot to the function with polynomial form:  I=aV^2+bV

4. find the R-squared value of the fitted function.

Could anyone kindly tell me the detailed code to achieve this, thanks a million.

I have got two columns of data X and Y. if i know the data would possibly fit a function with form : y=ax^n+bx+c, how could i extract the values of a, b and n? Also, how to get the R squared value for the curve fitting.

I have a series of experimental data points (current vs voltage in A and B columns respectively) in excel and would like to open these with Maple 13. I would then want to plot the current vs. voltage relationship plot and find out its trendline and function that best describes this curve.

a separate task is that, i have a set of pre-defined functions, and i would like to see which part (section) of the curve obtained from above procedures can give the best fit to the pre-defined function. I appreciate help from members of the forum.