Hi and thanks, The STD deviation of the data is needed to calculate the STD deviation of the results of the regression so one knows the uncertainty of the estimated parameters (results) based on the uncertainty of the experimental data input.
Hi! I believe the standard deviation is there because of the regression method "maximum likelihood", which requires this information to minimize the objective function. Do you think this could be it? Thanks, Rita
Hi, Mohammed. Do you know why my regression is giving me a warning that one parameter is at its upper/lower bound? And why the regression is working for one temperature but not the other?
Good Video. Aspen Analysis seems to struggle with certain mixtures, especially when applying cubic-EOS for binary system of compounds, that have totally different properties, for instances alkanols and permanent gases.
Thanks for the content you provided. Especially the clarification on the element numbers was very helpful. I tried to evaluate regressed parameters aswell as build-in parameters with the "evaluate"-button located in the regression-input-sheet. But the resulting residuals are much higher than the residuals shown in the result-sheet of the regression. Changing the parameter-values of the inspected method seems not to affect the results of the evaluate-function aswell. The Aspen manual is not helpful about this issue either. Therefore I would greatly appreciate a any tips about this. Keep up the good woork!
Hi and thanks,
The STD deviation of the data is needed to calculate the STD deviation of the results of the regression so one knows the uncertainty of the estimated parameters (results) based on the uncertainty of the experimental data input.
How is it possible to use the results from this regression in our simulation and not the values from the data bank?
Hi! I believe the standard deviation is there because of the regression method "maximum likelihood", which requires this information to minimize the objective function. Do you think this could be it?
Thanks, Rita
Hi! This sounds like a very good reason, I have not thought of it.
Thanks for sharing it!
BROOOOO you dont know how much i love u for this video!!!
Why is the STD % bigger for methanol Y (1%) than for methanol X (0,1%)?
Hi, Mohammed. Do you know why my regression is giving me a warning that one parameter is at its upper/lower bound? And why the regression is working for one temperature but not the other?
Dude, how can you just copy and paste data from excel, my aspen not allows me do that at all!
Good Video. Aspen Analysis seems to struggle with certain mixtures, especially when applying cubic-EOS for binary system of compounds, that have totally different properties, for instances alkanols and permanent gases.
Thank you so much. I finally got one of the things I was looking for. Hope to get other things in your other videos.
hello it was very informative I wanted to know about procedure regarding regression using UNIFAC and unifac interaction parameter
Sir, how to prepare for the Aspentech exam ?
Hi can you make video on detailed batch distillation simulation
Thanks for the content you provided. Especially the clarification on the element numbers was very helpful.
I tried to evaluate regressed parameters aswell as build-in parameters with the "evaluate"-button located in the regression-input-sheet. But the resulting residuals are much higher than the residuals shown in the result-sheet of the regression. Changing the parameter-values of the inspected method seems not to affect the results of the evaluate-function aswell. The Aspen manual is not helpful about this issue either.
Therefore I would greatly appreciate a any tips about this.
Keep up the good woork!