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  1. noetsi

    Long live SAS

    Respectfully that is nonsense. It is for those who learned it in college or work first as is true with most software.
  2. noetsi

    Long live SAS

    I think SAS does a lot of methods not just well known ones. But I am guessing you don't know dason well. He is joking big time.
  3. noetsi

    Long live SAS

    lol dason. Both do have advantages. R, for someone who has never learned to be a great coder, is harder to use than the SAS GUI (R has a GUI but only to write code with like a SAS editor). It does things that SAS will not do like auto.arima (SAS will do that, but it cost thousands of dollars to...
  4. noetsi

    Software for multiple logistic regression analysis

    looking at discussions of it I thought it was like SAS. Made by a company for sell. Oh well another free software I won't be able to learn:)
  5. noetsi

    Corona hints

    Coughing is one indication you have the disease, but you can not cough and have it obviously (especially when you are young I think).
  6. noetsi

    Corona hints

    Lot of fake information about this is on line.
  7. noetsi

    Software for multiple logistic regression analysis

    I don't trust excel at all. For one reason there is no way to test the assumptions of a method (its not free either as far as I know). Neither is Python I think. R is the only free software I know of for this. Whether its easy depends on whether you are good at coding or not :p
  8. noetsi

    ARIMA models

    Its frustrating to spend a lot of time learning this to find out it commonly does not work with real world data....
  9. noetsi

    Multivariate regression versus multivariable regression

    I have never heard the term multivariable used in statistical analysis and I have spent a fair amount of time reading it :p To me a single response variable with two or more predictors is a multivariate analysis.
  10. noetsi

    Confirmatory or explorative factor analysis?

    Can you post the actual exam? Its hard to comment on it without reading the question.
  11. noetsi

    ARIMA models

    I found this comment fascinating since I spent a lot of time learning the classical way to identify PDF components. For one thing I never realized these were only theoretical (I knew they broke down with both MA and AR components). "This hazard is revealed by sampling experiments. When the data...
  12. noetsi

    Mean of the residuals in Simple Linear Regression *Beginner Alert*

    That is true, but different than the original posters question. In fact since the mean of the residuals will always be zero you don't need to check for that - it has to be true. Unless you have a software issue :p
  13. noetsi

    What analysis is best for my research

    What is your research question/hypothesis? It helps a lot to address these type of questions.
  14. noetsi

    Which test to use to understand if higher priced version of the beer is worthy of higher rating?

    I am not sure how one defines justified here. I don't think statistics can answer a value laden question like "is this justified."
  15. noetsi

    Best correlation approach for likert scale data

    I get a strange error when I separate the analysis by area (this does not show up when I run all the data together). It says The number of groups for variable Q1 is less than 2, the affected polychoric correlations are set to missing. Note sure what that means. Strangely it will generate...
  16. noetsi

    Mean of the residuals in Simple Linear Regression *Beginner Alert*

    which is why you don't test it :)
  17. noetsi

    Best correlation approach for likert scale data

    I have a set of four point likert scale measures (highly satisfied, somewhat satisfied, not satisfied, highly dissatisfied). I have to run correlations between these. Last time I looked at polychoric correlations and spearman rho, I was wonder which of these is better for this type of data or if...
  18. noetsi

    Mean of the residuals in Simple Linear Regression *Beginner Alert*

    Except dason. He was born (if that is the right word for a bot) with a perfect knowledge of statistics... I have spent 15 years studying regression and this is the first time I have heard that one raised. Usually you look at the residuals to see if you have heteroskedacity, non-normality, or...