In this workshop, we will use GnuPlot and a spreadsheet to do linear regression and look at some of the analysis parameters.<\/p>\n
To run GnuPlot on the web open http:\/\/www.plotshare.com<\/a>\u00a0 in another browser tab or window.<\/p>\n Note that the plotshare requires you to prove you are human by entering the text presented in the Options<\/em> box just below the main Gnuplot-Script<\/em> box at the top of the page.<\/p>\n Copy \/ paste the script from Example 6.03.1<\/strong> below into the Gnuplot-Script box on plotshare, then Add external data and copy \/ paste the data after the script into the text box ExtData1.<\/p>\n Click Execute to fit line and plot the end result. That\u2019s all it takes to do regression with Gnuplot.<\/p>\n Replace the script and the data with the information under Example 6.03.2<\/strong>.<\/p>\n Download the spreadsheet version here<\/a> and a picture explaining the steps to complete the regression in the spreadsheet here<\/a>. A good description of the use of LINEST is provided here by Microsoft<\/a>.<\/p>\n