How to plot measurement points with x and y error bars, as well as a regression line

I have a file full of measurements and errors for x (RA) and y (Dec) and would like to have them ploted with an additional regression line. Also, I'm wondering how the syntax goes if I also want to make a regression line for the e.g. first 10 measurement points. Thank you for your help.

Answer 1

[Star Strider]

There are a number of such functions in the File Exchange. See which of these works best for you.