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# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### % dependent and independent variables

Hi all is a linear regression model appropriate when both the dependent and independent variables are % values of the total population in any given...

• Replies: 0
• Views: 639
03-27-2017, 01:48 PM
2. ### β and b

Hi, Just starting with regression analysis but am confused with the interchangeability of β and b. Can someone clarify the difference? Thank...

• Replies: 3
• Views: 2,818
05-11-2015, 04:31 PM
3. ### "Adjusting" logistic regression model

I'm trying to predict response to a direct mail campaign, but there will be multiple campaigns, each having a different "topic" (eg, home remodeling,...

• Replies: 2
• Views: 2,940
02-20-2013, 06:43 PM
4. ### "Averaging" linear trends = linear regression slopes ?

Hello everyone, I was not able to find a solution for the following question, explaining it with a simple example: We have N=12 weather boxes...

• Replies: 1
• Views: 1,284
07-27-2014, 05:18 PM
5. ### "Best" Multiple (Multivariate) Nonlinear Regression?

Hi all, I'm just getting started in R. I've had good luck finding the right (predictive) correlation weights using orthogonal polynomials in Java....

• Replies: 2
• Views: 4,143
Axl
01-22-2009, 03:05 PM
6. ### "Lumping" multiple data sets into one for regression

Closed - moved sub-forums

• Replies: 0
• Views: 1,763
06-26-2015, 01:25 PM
7. ### "No Observations"

Hi, I was hoping someone might be able to help solve this problem. The values are all formatted as numeric. I'm regressing news announcements on...

• Replies: 1
• Views: 2,623
09-13-2010, 07:57 AM
8. ### "Sensitivty" analysis

I have not encountered this before. It occurs in the context of "mixed effects OLS regression" (not sure exactly what type of regression that is...

• Replies: 4
• Views: 1,621
03-18-2016, 04:10 PM
9. ### "two variables are too similar and thus there is no linear interaction found"-Effect?

Hi there (german verision below) I did a multiple Regression. There are two variables where no linear interactions was found. This is a little...

• Replies: 3
• Views: 2,247
06-09-2014, 01:16 PM
10. ### 'e' in expected values in Poisson

Using this example (see below) could someone please tell me what the 'e' symbol stands for and how one would work out the expected values manually. ...

• Replies: 1
• Views: 2,543
01-05-2017, 02:43 PM
11. ### 'Key Drivers of Satisfaction Analysis' - Help Please!

For a project I am undertaking, I have carried out an extensive survey of satisfaction. I have a list of criteria ranked with the level of customer...

• Replies: 0
• Views: 2,100
07-18-2011, 08:28 AM
12. ### 'Significant' product-term interaction but no significant simple main effect contrast

:wave: I'm conducting a conditional logistic regression to assess the association between a continuous predictor and a dichotomous outcome,...

• Replies: 6
• Views: 4,285
11-26-2013, 07:43 PM
13. ### (Beginner!) Questions about regression on CD album sales/internet use/digital music s

Hello, I am attempting to perform a regression on what has caused the reduction in CD album sales, and need a little assistance. I have 28 data...

• Replies: 1
• Views: 2,052
03-29-2012, 09:34 AM
14. ### (easy) Maximum Likelihood Regression question...

hello everyone. i am trying to get my head around a very easy example that i read somewhere explaining maximum likelihood estimation on the OLS...

• Replies: 11
• Views: 5,189
08-27-2011, 02:33 PM
15. ### (easy?) Partial slope coefficients question...

Slopes from auxiliary regressions where each variable is regressed on one of the others. Variables have all been mean-deviated so the constant terms...

• Replies: 0
• Views: 2,904
12-15-2011, 02:25 PM
16. ### (Li'l) theoretical question about correlations in regression...

hey y'all people!??! how're y'all doooin' huh? i hope everyone had the most awesomest holidays!!! heh. so... who else is feelin' the pinch this...

• Replies: 9
• Views: 3,308
01-09-2012, 02:44 AM
17. ### (OLS) How to get sample variance-covariance matrix of residuals?

Consider the OLS: (1) y = a + b*x + e Where e is the error term. I understand that the population variance-covariance matrix for the residuals...

• Replies: 6
• Views: 5,156
07-16-2012, 10:02 AM
18. ### (Poisson/NegBin, RE) Estimation of time-invariant predictors in a panel model

Hello dear forum members, For a time being I had been working with the following model (Stata command format): - xtpoisson y x1 x2 x3 x4 x5, fe-...

• Replies: 3
• Views: 1,871
03-10-2016, 05:02 PM
19. ### (SPSS) External validation for a linear regression model

Hello, I am investigating relationships of continuous variables and I am aiming at getting a model that can be generalized for the study. My DV is...

• Replies: 6
• Views: 3,188
wid
01-06-2015, 06:49 AM
20. ### (SPSS) Linear Mixed Model?

Dear all, I would appreciate any advice on the correct use of a Linear Mixed Model (in SPSS) A short description of the research I’m doing: In...

• Replies: 0
• Views: 1,271
JdH
07-18-2015, 07:27 AM
21. ### (SPSS) Multinomial Logistic Regression- testing IIA- Hausman-McFadden

hi all, I am using SPSS 20 to analyze survey data. I am using Multinomial Logistic Regression and have come up with three "models", containing...

• Replies: 2
• Views: 7,942
Syd
02-28-2013, 09:08 PM
22. ### (Urgent!) Overlapping concepts in regression analysis

Hi all, I have an urgent question regarding my master thesis: I'm doing research on online political participation, which is measured by 12...

• Replies: 1
• Views: 1,481
08-12-2013, 10:11 AM
23. ### 1 predictor, 2 different values for baseline statistic & change statistic?

Hi, I am conducting a Cox Regression for my first time. I created a simple model with only 1 predictor (categorical), one dependent variable...

• Replies: 0
• Views: 2,047
03-12-2012, 04:09 PM
24. ### 1)Test multicollinearity b4/after Stepwise Log Regress? 2)Final Equatn 3)Model Select

Hi all, I need to perform logistic regression for my study. Pretty new to it but have read up on it and have tried it on SPSS. I would like to...

• Replies: 8
• Views: 2,322
07-25-2015, 06:13 AM
25. ### 10 fold cross-validation

I am looking at how good an experimental measures is to classify control group from a clinical group. I was asked to do 10-fold cross validation....

• Replies: 0
• Views: 2,086
12-09-2014, 03:14 PM
26. ### 1way anova to do multiple comparisons on dichotomous dv

Greetings! I wanted to quickly reference with someone who may know more about logistic type analyses. I am doing an analysis of a very large...

• Replies: 0
• Views: 3,389
cdo
05-18-2010, 05:25 PM
27. ### 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: 1,801
07-26-2016, 07:55 PM
28. ### 2 or more type of categorical variable with multinomial logistic regression

Dear sir Good evening from Japan I would like to know about usage of multinomial logistic regression In my analysis have different type of (2...

• Replies: 0
• Views: 883
03-14-2017, 08:47 AM
29. ### 2-stage Heckman instrumental variable estimation

Hi Guys, I am working on my thesis. My main regression model is the following: (1) Y=x1*Payment+x2*Country+x3*Industry..... All independent...

• Replies: 0
• Views: 2,321
03-30-2014, 10:34 AM
30. ### 22 enough for multiple regression?

Hello guys, i am doing a thesis on a given industry having only 22 enterprises. As the population size is small i have decided to go for census. But...

• Replies: 5
• Views: 1,997
11-20-2012, 02:58 AM
31. ### 2SLS - endogeneity issue

I am running a regression on the relationship between aid inflows and investment levels in developing countries. One obvious other explanatory...

• Replies: 1
• Views: 3,636
05-06-2006, 01:40 PM
32. ### 2sls regression

hi, what be the consequenses of using the same explanatory variables in a simultaneous equations system? for example if both the supply and the...

• Replies: 0
• Views: 1,426
02-15-2015, 11:51 AM
33. ### 2SLS regression model

I have a query about instrumental variable (IV) and 2SLS (actually three stage) regression. I am trying to estimate effect of core team(a group of 5...

• Replies: 3
• Views: 1,975
11-20-2013, 09:41 PM
34. ### 3 way interaction urgent :(

Hi I have a question about 3 way interaction. I have two IV: - inside out human resource planning - soft human resource planning the DV is...

• Replies: 1
• Views: 2,827
08-06-2010, 08:12 PM
35. ### 3-way ANOVA for paired groups and repeated measures or a GEE

Hi! I need help for data analysis of my masters.I work with awake rats in pharmacology experiments. In my experiment I have some groups of treatment...

• Replies: 2
• Views: 2,368
12-18-2016, 11:01 AM
36. ### 4 DV's in a regression analysis

I need to conduct a Regression analysis with 2 IV's and 4 DV's, I was wondering if this is something that is possible? I want to test out a model...

• Replies: 0
• Views: 4,153
07-23-2010, 11:00 AM
37. ### 4-way nested Anova?

A student of mine carried out some research before we thought about how we were going to analyze it, and we're a bit lost. We are trying to...

• Replies: 0
• Views: 1,523
09-12-2012, 09:42 AM
38. ### 4PL Non-Linear Regression, Transforming observed y values

Good Afternoon, I'm currently teaching my self how to fit response curves, and have run into some trouble. I currently need assistance on...

• Replies: 7
• Views: 5,226
10-22-2013, 12:33 PM
39. ### 95% Intervals

I'm new here (and relatively new to statistics) so I apologize if this thread is in the wrong place. I have a problem that seems relatively easy...

• Replies: 4
• Views: 2,331
02-09-2012, 11:31 PM
40. ### A big problem: Portfolio OLS t-statistic calculation and other P-OLS issues.

...............................................

• Replies: 0
• Views: 1,713
07-23-2012, 12:52 PM
41. ### A coefficient to determine Variance

Hi I am working on a system where temperature stabilises with distance but also increases/ decreases based on month/ hour. Is there a way to...

• Replies: 1
• Views: 2,644
11-09-2015, 12:41 PM
42. ### A good text on generalised linear models?

Does anyone have any good recommendations on texts on generalised linear models without matrix notation? Cheers.

• Replies: 2
• Views: 3,218
03-28-2010, 03:01 PM
43. ### A methodology question

Hi, I have a multiple regression model e.g. y=x1+x2+e Can I estimate the model by using the model in two ways by using same values of y and x1,...

• Replies: 3
• Views: 992
10-05-2012, 03:06 PM
44. ### A new comer has a question about multicollinearty problem

I am running a OLS model with 9 IVs. The model results are good (a fitting model), but I got a high negative multicollinearity problem for two IVs...

• Replies: 3
• Views: 2,494
08-09-2011, 02:51 PM
45. ### A novice in deep waters

Hi guys I am in no way a statistical expert – my knowledge about the subject is limited to a few courses I participated in a couple of years ago...

• Replies: 1
• Views: 225
10-26-2017, 11:19 AM
46. ### A priori Power Analysis

Hey Guys, I am a newbie and have a question on power analysis. I would like to measure the effect of an intervention on various measures and...

• Replies: 2
• Views: 3,641
08-15-2016, 04:10 AM
47. ### A purely conceptual question

Assume a logisitc regression model includes a continuous variable like age and a categorical variable like gender and an interaction term for these. ...

• Replies: 0
• Views: 1,129
04-12-2016, 05:30 PM
48. ### A query related to Bayesian Regression

I had a query related to Bayesian Regression and I was wondering if someone had any ideas : So in the proper Bayesian case, we have the following...

• Replies: 0
• Views: 1,771
06-22-2011, 06:42 PM
49. ### A question about bimodality.

First question - if my Y variable has a bimodal distribution, is it at all possible to run a regression on this variable? Second - if my Y...

• Replies: 1
• Views: 2,233
03-29-2008, 01:24 PM
50. ### a question about estimates in mixed models

Hello, I was hoping to be able to find all of the estimates of covariates and of the categories with a number of factors. I found a similar study...

• Replies: 0
• Views: 1,401
03-28-2012, 12:55 AM
51. ### A question regarding missing variables

Hey all, If you have missing values in your data set, how do you go about doing the statistical analysis? For example if you have a data chart...

• Replies: 2
• Views: 2,430
02-20-2010, 10:14 PM
52. ### A question regarding simultaneous relationship and its implications on predictions

Hey guys, I have a question regarding The simultaneous relationships and the Implications it has on regarding whether the said variable will be...

• Replies: 0
• Views: 573
04-14-2017, 08:22 AM
53. ### A quick regression QUESTION

Hi i just have a really simple question regarding multiple regression. i have a independant variable called DPR that is the dividend payout ratio...

• Replies: 2
• Views: 2,893
09-16-2008, 03:10 AM

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