topic Re: need to plot a regression line that includes my custom computed upper and lower error bars in Discussions

need to plot a regression line that includes my custom computed upper and lower error bars

learning_JSL — Fri, 09 Jun 2023 18:14:32 GMT

Hi - I am trying to write a script that will plot my computed regression value along with my custom computed upper and lower error bars. That is, for each independent value, my chart would plot the dependent (regressed) value, the upper bound, and the lower bound. My chart would look something like the example below, ideally with the error range shaded. Thanks in advance!

Re: need to plot a regression line that includes my custom computed upper and lower error bars

ih — Mon, 28 Mar 2022 13:25:23 GMT

Have a look at some of the code in the post below, I think everything you need is there:

Re: need to plot a regression line that includes my custom computed upper and lower error bars

learning_JSL — Mon, 28 Mar 2022 14:03:52 GMT

Thank you ih. Sorry, I think my original question was unclear. I only need to plot my computed values as a time series. (I do not need to do seasonal modeling.) I have already computed my regression and my upper and lower errors and I just need to plot them with the error range shaded. I looked through the link you sent, to no avail. I am probably missing something.

Re: need to plot a regression line that includes my custom computed upper and lower error bars

ih — Mon, 28 Mar 2022 14:28:42 GMT

I apologize as I was not very clear/helpful. In the script available using the 'View More' button in the very first post, after all of the statistical analysis is a graph with a prediction, confidence limits, and a shaded area. In graph builder, you could:

Add time to x axis
Add prediction, upper and lower confidence limits to y axis
Change to line and remove the smoother
Right click inside the chart area and select Add > Area
On the bottom left, under 'Area', change the Area Style to Range, and under Variables uncheck the prediction, so you only have time, upper, and lower confidence variables checked.
On the bottom left, under 'Line', uncheck the confidence variables, so you only have time and prediction checked.

Re: need to plot a regression line that includes my custom computed upper and lower error bars

learning_JSL — Mon, 28 Mar 2022 16:25:33 GMT

Thank you ih - this should help!