Talati
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Talati replied to the topic Help needed with selection of Regression Model for SDLC in the forum IT 11 years, 1 month ago
Thank-you Rob.
This was a very detailed and well-explained piece! I thought I knew regression, but turns out that its not all I had thought I knew about! I will definitely look-up for Price and Chatterjee book – I believe you are referring to ‘Regression Analysis by Example’ book? Please can you confirm?
Many Thanks.
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Talati replied to the topic Help needed with selection of Regression Model for SDLC in the forum IT 11 years, 1 month ago
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Talati replied to the topic Help needed with selection of Regression Model for SDLC in the forum IT 11 years, 1 month ago
Brill Rob!
Thank-you very much. Yup, I dont think Minitab does Eigen values, however, I will follow-your advise and see how I get on!
Well, we are still on data gathering and this is the sample data that I have got from the team. So may take some time to get cracking with the real-time data!
Many Thanks for your help!
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Talati replied to the topic Help needed with selection of Regression Model for SDLC in the forum IT 11 years, 1 month ago
Thanks Robert.
This was a very helpful reply! I have a strong feeling that multi-collinearity exists! I will have to look at the data again; however, would you know if we can perform nominal logistic regression? My understanding is that nominal (or binary or ordinal) regressions (support by Minitab) can be performed when the response variable…[Read more]
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Talati replied to the topic Help needed with selection of Regression Model for SDLC in the forum IT 11 years, 1 month ago
not sure if you are able to see the attachment, but this is my third attempt! [file name=Sample.xls size=13824]http://www.isixsigma.com/images/fbfiles/files/Sample.xls[/file] [file name=Sample.xls size=13824]http://www.isixsigma.com/images/fbfiles/files/Sample.xls[/file]
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Talati replied to the topic Help needed with selection of Regression Model for SDLC in the forum IT 11 years, 1 month ago
Hi, they are attributes and discrete in nature….
I am attaching the sample data in excel format. Please note that the Effort Variance values are based on the difference between actual and planned efforts (not shown in the sample)…I am wanting to include the competency data (attributes) to see if there is any relation.
I am using Minitab…[Read more]