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# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### Determining Classification accuracy of a Multinomial Logistic Regression using R nnet

Hi, I am trying to assess the classification accuracy for a Multinomial Logistic Regression model using R. I have adapted the example below to my...

• Replies: 1
• Views: 1,790
08-03-2016, 09:50 PM
2. ### Determining residual outliers when heteroskedasticity exists

Hi, I was wondering if anyone has any thoughts on the best way to approach the detection of outliers based on residuals from a linear regression...

• Replies: 3
• Views: 1,571
08-03-2016, 01:46 PM
3. ### Need Help with developing general linear mixed model regression equation

I'll be moving this to another thread and don't want to create multiple versions. Thanks!

• Replies: 0
• Views: 1,101
08-03-2016, 12:13 PM
4. ### Model equation Binary probit model

Hi, the model equation for a binary probit model looks like that: Prob(Y=1|X) = Φ(Xβ) I just want to know if my vector X includes covariates...

• Replies: 1
• Views: 1,385
08-03-2016, 10:49 AM
5. ### Difference between a VAR and a VECM

Hello, I am performing cointegration analysis using Eviews and the DOLS estimator in the cointegrating equation. After saving the residuals of...

• Replies: 0
• Views: 2,366
08-02-2016, 09:55 PM
6. ### Regularized Regression

When is L1, L2 or e-net preferred when analyzing data? It can't all be based on cross-validation?

• Replies: 0
• Views: 1,192
08-02-2016, 10:49 AM
7. ### Data forecast

Hello, I'm not exactly sure if this is the right forum, or even if what I'm looking for is actually called data-forecasting, but here's my question...

• Replies: 1
• Views: 1,091
07-31-2016, 03:17 PM
8. ### Nonlinear Regression - Statistica

Hello Everyone, I trust you are all doing great. I was working on an experimental problem and I have got to the phase where I need to carryout...

• Replies: 0
• Views: 982
07-31-2016, 05:24 AM
9. ### Regression Analysis

Hello, It would be great if somebody can help me with this: Is it correct to conduct factor analysis on data source (A) and then run a simple...

• Replies: 2
• Views: 1,927
MSN
07-29-2016, 07:05 PM
10. ### Leverage/outliers in large data sets

Typically discussions of these and their impact on regression deal with individual points. Commonly I have 10-30 thousand data points and its...

• Replies: 3
• Views: 1,805
07-28-2016, 06:30 AM
11. ### Lagged independent variables

Hi, In my probit model I have a DV measured in t and several independent variables lagged up to 5 years. There also some other independent control...

• Replies: 0
• Views: 1,199
07-28-2016, 02:48 AM
12. ### what does it mean if the f stat is 0?

title says it all

• Replies: 1
• Views: 1,105
07-28-2016, 02:44 AM
13. ### homework help

1.The following data concerning income and educational attainment for several counties in Alabama were taken from the U.S. Census Website. County...

• Replies: 1
• Views: 1,359
07-28-2016, 02:05 AM
14. ### Interpreting scaling vs centring vs normalizing negative binomial model

Hello, I'm a bit confused between the difference between scaling and centring in a negative binomial regression. My model looks like this:...

• Replies: 0
• Views: 1,587
07-27-2016, 02:00 PM
15. ### Hypothesis for logistic regression

I get a group of data and would like to use the regression to analysis the relationship. The dependent variable Y is a kind of loss rate, so it is...

• Replies: 4
• Views: 2,765
07-27-2016, 12:37 PM
16. ### 2 or 3 level multilevel model? Quick query

Hi there, The title should read 3 or 4 level multilevel model, my apologies. I am estimating a multilevel model (in Stata). My goal is to...

• Replies: 1
• Views: 1,811
07-26-2016, 07:55 PM
17. ### Choosing appropriate statistics (please)

Hi, I have an issue (mostly being clueless and trying to achieve more than I can), I am writing a page in Ruby on Rails for which I need to calculate...

• Replies: 0
• Views: 1,199
07-25-2016, 03:14 PM
18. ### Moved: How to Interpret the Factor Analysis Findings

Kindly help writing research findings for the Factor Analysis as attached

• Replies: -
• Views: -
07-24-2016, 12:37 PM

Greetings everyone, I'm currently working on my Bachelor thesis relating to behavioral finance. My topic requires me to run a regression analysis...

• Replies: 4
• Views: 3,022
07-24-2016, 02:41 AM

Hello, I have a distribution which looks like a Khi-2 distribution, which model is most appropriate? I try linear regression, but normal...

• Replies: 5
• Views: 1,870
07-22-2016, 03:13 AM
21. ### Weighted Cases- Binomial Logistic Regression in SPSS

I am currently using the HCUP KID federal database which employs discharge weights to better estimate the true number of cases. For example, I have...

• Replies: 0
• Views: 2,842
07-21-2016, 02:34 PM
22. ### Multiple regression analysis

Hello All, Please help me with my multiple regression analysis result. My questionnaire consisted of 7 independent variables using 7 point...

• Replies: 0
• Views: 821
07-21-2016, 02:56 AM
23. ### Ordinal mixed model assumptions

I understand that I can perform a mixed model with ordinal outcome in spss using GENLINMIXED command I just want to know what are the assumptions...

• Replies: 0
• Views: 1,444
07-20-2016, 04:48 PM
24. ### interpreting interaction terms

Hello, I hope that someone may be able to provide some help in my research. I have a 3-way interaction gender (male 0, female 1) by black (black...

• Replies: 7
• Views: 1,588
07-19-2016, 07:18 AM
25. ### I cant think of the name of a function.

Hi all. this is my first post on talkstats. I'll try to be brief. I remember learning about comparing the top 30% and bottom 30% of results to...

• Replies: 0
• Views: 1,465
07-19-2016, 05:48 AM
26. ### Analysing a designed experiment - is the theory wrong?

hi, just had a scary thought . in all industrial DoEs we definitely have measurement error on the IVs. However I have always seen the OLS as the...

• Replies: 11
• Views: 1,619
07-18-2016, 11:07 AM
27. ### Event probabilities from the regression analysis

Hi, I am looking for all possible sources (literature, articles, books) with descriptions how to transform different kinds of regression analysis...

• Replies: 5
• Views: 1,741
07-15-2016, 09:55 PM
28. ### Assumptions of time series regression

I was wondering what the equivalent assumptions to Gauss Markov are for time series regression. Some are clearly different. Stationarity is not (as...

• Replies: 2
• Views: 1,766
07-12-2016, 05:36 PM
29. ### Power function - finding if the slope is significant or not?

Hi, I'm using power functions to look at a relationship between time and age and I need to be able to test whether or not the slope of this...

• Replies: 2
• Views: 1,269
07-11-2016, 10:26 AM
30. ### How to study association between categorical variables?

I have 4 categorical variables in a dataset let X1, X2, X3 and Y. Where X1,X2 and Y is a binary random variable and X3 have 3 categories. X1,X2...

• Replies: 6
• Views: 1,332
07-10-2016, 07:00 PM
31. ### Poisson regression for count data

I need to fit a model to study the severity of a bicycle accident based on other explanatory variables. The data description is X1: is the use of...

• Replies: 1
• Views: 2,075
07-10-2016, 10:21 AM
32. ### Problem with Data analysis on Likert Scale!

Hello John, Im a student of Business studies and am working on a research project titled as "Impact of Physical environment on Employee...

• Replies: 10
• Views: 16,635
07-09-2016, 03:44 AM
33. ### What's the meaningful difference between an odds ratio and a regression coeffecient?

Moved from here: http://www.talkstats.com/showthread.php/65740-What-s-the-meaningful-difference-between-an-odds-ratio-and-a-regression-coeffecient ...

• Replies: 0
• Views: 1,379
07-08-2016, 09:49 PM
34. ### Data set simulation

Answered on other threads, sorry for posting

• Replies: 1
• Views: 2,281
07-07-2016, 01:12 PM
35. ### Multinomial logistic regression - testing assumptions

Hello everyone, I'm trying to perform an MLR with 4 continuous predictors for one ordinal dependent. I've tested my assumptions for the MLR except...

• Replies: 8
• Views: 2,292
07-07-2016, 09:02 AM
36. ### Hausman-McFadden Test (IIA)

Hello, I need to carry out a Hausman-McFadden test before I run a multinomial logistic regression on my data. While I've successfully run an...

• Replies: 0
• Views: 1,872
07-07-2016, 07:08 AM
37. ### Normality / QQ-Plot in Generalized Linear Models (GLM)

Hi, sorry if this is a frequent question, but I did not find an appropriate answer: If I have a GLM with a non-normal distributed outcome...

• Replies: 8
• Views: 3,948
07-06-2016, 07:59 PM
38. ### Interaction effect: only main effects significant

Dear community, I'm running a regression model to test, if there is a difference between the Eastern and Western Germans supporting redistribution...

• Replies: 6
• Views: 1,721
07-04-2016, 10:26 PM
39. ### Need help doing complex transformations on variables to do a regression

I need help doing some transformations on variables--I am kind of real rusty in logarithms and that may be the way to set up this complicated...

• Replies: 0
• Views: 1,095
07-03-2016, 12:33 PM
40. ### Dis./Avantadges of estimating of binary response model with OLS

In the Maximum Likelihood Estimator context, I can't find answers for those two questions: - What are the advantages and disadvantages of...

• Replies: 8
• Views: 2,161
07-02-2016, 12:47 PM
41. ### Comparing regression coefficients between groups

Hello! I am a psychology student and I’m doing a research which I need help with. The research is about parenting stress in parents of children...

• Replies: 5
• Views: 2,940
07-01-2016, 03:10 PM
42. ### test of non-linearity

I am reading an interesting econometric book where the author suggests testing if non-linearity exist by specifying a quadratic term, if its...

• Replies: 15
• Views: 8,386
06-30-2016, 02:24 PM
43. ### Generalized Linear Model: help interpeting interaction

Hello! I apologise in advance if I missed it, but I couldn't find an answer in previous threads. I run a generalized linear model with 1...

• Replies: 1
• Views: 1,835
06-29-2016, 07:54 AM
44. ### Effect size+power calculations for spotlight analyses

EDIT: I mistakenly typed "spotlight" when I really meant "floodlight". Corrected for that. I have a question about calculating effects sizes and...

• Replies: 2
• Views: 1,163
06-28-2016, 01:45 PM
45. ### Regression assumptions

this comes from Introduction to Econometrics by Stock and Watson. On page 161 they note in a footnote "....it might be helpful to note that some...

• Replies: 9
• Views: 2,016
06-27-2016, 05:48 PM
46. ### p-value for logistic regression

How do I find the p-value for logistic regression. For example , for a glm output I : z -value : 1.32 P ( > | Z | ) = 0.186696 If it were a...

• Replies: 3
• Views: 2,664
06-27-2016, 11:11 AM
47. ### Relative impact

I circle back to this question every few years, it is becoming critical these days and my readings have not turned up a strong consensus on this...

• Replies: 9
• Views: 3,395
06-27-2016, 11:02 AM
48. ### Nonlinear Canonical Correlation Analysis

Hello In the application of Nonlinear Canonical Correlation Analysis I was really confused about "weights and component loadings" !! can any one...

• Replies: 0
• Views: 1,555
06-26-2016, 11:28 PM
49. ### Compare the estimated model with the model with intercept-only

The question is: How do the test to compare the estimated model with the model with intercept-only ? How can I comment on the result ? I think we...

• Replies: 5
• Views: 2,428
06-26-2016, 12:08 PM
50. ### Change regression model (\$x^*_i = x_i -10\$)

Hi there.:wave: I'm solving an exercise on multiple linear regression. Near the end I will be asked for the same data as the previous model, it is...

• Replies: 5
• Views: 2,556
06-26-2016, 04:18 AM
51. ### Estimation of count regressors that tend to only increase with time

Hello dear forum members, I am seeking you comments on the following issue that I noticed in the project that I am working on. So, in 2014 I...

• Replies: 0
• Views: 872
06-25-2016, 10:27 AM
52. ### Find costant that satisfies the variance

Hi, I have this regression model : Y_i=B_1+B_2logx_i+2e_i e_i~N(0,σ2) I am asked to find the constant :

• Replies: 0
• Views: 1,031
06-24-2016, 03:02 AM

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