Alex Koiter

Hi Brian, Thanks for posting your explanation of the differences. I too didn't realize the model was fit differently using raw or summarized data. As a follow up question can...

Hi Brian, Thanks for the responses, this is very helpful. In terms of the raw data and more than 2 tracers, I get the following error: "Cannot invert matrix: not...

This is great that this issue is getting some traction again. Having had no luck with raw data input, I have always just defaulted to the summarized input. I am...

I have found that one of the best ways to present the data is to use a box and whisker plot, but you can only do this if your data...

I too ran into the same issue using raw data with more than two tracers and I was unable to resolve it. Worked no problem when using the summarized data.