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Marc, Thank you so much for your kind answer. Really appreciate your work. I did a simple Matlab program to rewrite the input when an error happens, detecting the one that cause the error and deleting it. It is a little bit slow but it works for me, it allows me to try large amounts of combinations....

Hi Marc and Luigi Thank you for your repply! I am very sorry. I typed the wrong parameters in the previous post. I also had a positive run with those. The actual parameters are : 3 3 330 163 2100 7 700 211 2100 0 850 521 2100 The poison coefficient of each layer is : 0.3386 0.45 0.2 To avoid this er...

Hello! I am using Gpell to create ellipticity curves with models of 3 layers. When I input a text file with over 10 000 combinations,I get an error in the combination number 2758, in which the parameters are : 3 3 280 163 2100 7 700 211 2100 0 850 521 2100 I receive the following answer : ': “Error ...

Hello , I was also looking for the same information, the previous links are not working. I am currently having a problem with gpell, when I enter a document with many combinations with the structure below: 3 3 280 163 1800 8 300 211 1800 0 750 521 2200 3 3 330 163 1800 8 300 211 1800 0 750 521 2200 ...

Thank you very, mutch Mark!
It was really helpful.
The difference was around 0.15 Hz, between 1.35 and 1.5 Hz, so the relative error is quite small.

Hello, I have the same question, in some HVSR I have done with lower values of H/V peak( around 2), the f0 from the average curve is a bit different from the f0 from windows, sometimes with differences of 0.2Hz. When checking the Sesame criteria for a well-defined peak, these curves will most likely...