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Non linear mixed effect analysis - multiple predictor variables

3 次查看（过去 30 天）
Koen Wildemeersch
关闭： MATLAB Answer Bot 2021-8-20
Hi all,
could somebody help me out? I'm trying to use the nlmefit function with multiple predictor variables, but that doesn't seem to work.
This is my case: multiple (predictor) variables, Xi, were measured as function of time for a number of depths (change in sediment concentration along the depth and as function of time). The same was done for the variable I want to predict, Y:
Y(t,d) and Xi(t,d)
The measurements are discontinuous and the depths and times chosen are equal for all measurements. I’m now looking for a non linear multilevel fit: Y(t,d,Xi(t,d)), but I have no idea how to make it work.
I don’t find examples were multiple predictor variables are being used. If anybody would have such an example I would be very pleased!
Thanks,
Koen
  1 个评论
Andre
Andre 2011-6-14
Hey,
Did you ever figure out how to use multiple predictors? I seem to be ahving the same problem as you are.

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