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05-07-2017
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# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### Approximating the probability of an event occuring from the output of a Poisson GLM

Hi all, I have some data that includes the output of a Poisson Log Link model, that aims to predict how many times an event will occur over the...

• Replies: 2
• Views: 1,254
10-10-2016, 11:15 AM
2. ### Spearman's Correlation and Wilcoxon Signed Rank Test

Hey guys! I have an urgent question for my master thesis. In my thesis, I'm comparing 4 performance metrics. My data consists of 100 funds and...

• Replies: 0
• Views: 1,405
10-10-2016, 11:13 AM
3. ### Regression with additive and multiplicative predictors

Hi, we are analyzing pollutants in mussels with regression models. Let's say we have only the two predictors (1) "year" and (2) "month". However,...

• Replies: 8
• Views: 1,499
10-10-2016, 07:50 AM
4. ### OLS Regression w/ longitudinal data

I have a longitudinal data set with two waves. Several variables exist in both waves. I want to examine the following question with and OLS...

• Replies: 0
• Views: 1,125
10-07-2016, 03:33 PM
5. ### Postive correlation but negative coefficient in regression??

Im a little confused by some results I have..... I have two predictor variables and an outcome variable. The first predictor is positively...

• Replies: 23
• Views: 51,547
10-07-2016, 04:31 AM
6. ### Stationary data first after the 2-order/3-order difference on LN(variable)

I want to make an Linear Regression. Dependent variable: GDP Independent variables: Net exports and Debt and some control variables All variables...

• Replies: 0
• Views: 2,301
APA
10-06-2016, 08:33 AM
7. ### What information can we get from the table of deviance residual (regression)?

Hello, I was wondering what's the importance and substantive interpretation of the table of deviance residual in the context of (logistic)...

• Replies: 0
• Views: 761
10-05-2016, 09:01 AM
8. ### Large odds ratio in binary logistic regression/big scale difference of variables

I'd like to ask for some help with a binary logistic regression. In SPSS I am building a binary logistic regression with 4 independent continuous...

• Replies: 3
• Views: 844
10-02-2016, 05:53 AM
9. ### calculation of the average leverage when predictor(s) is categorical

Hello, I was reading different resources about regression diagnostic, in particular for Logistic Regression. As for leverage, the sources suggest...

• Replies: 3
• Views: 934
09-30-2016, 02:41 PM
10. ### Poisson regression for Count data

Hello Every one, I'am working in Toxicological lab, Where we deal with animal data. I have to perform Poisson Regression for count data but i...

• Replies: 9
• Views: 2,284
09-28-2016, 06:38 PM
11. ### Correlation VS linear regression using proportional data

Hi, I was hoping someone may be able to assist. I have discussed this with two people who understand a great deal about stats, although I read...

• Replies: 0
• Views: 2,623
09-28-2016, 11:52 AM
12. ### Dealing with missing values

I am analyzing the data of a cohort study.There are three sets of paired data (same measures on same subjects in 3 different point of time). The...

• Replies: 2
• Views: 1,087
09-27-2016, 06:54 AM
13. ### Generalized Least Squares (and ANOVA type III)

Dear all, I ran a type III ANOVA on a model of this kind: gls(y~x1+x2+x3). I found that both x2 and x3 are significant. However, if I drop x3 from...

• Replies: 5
• Views: 783
09-22-2016, 01:07 PM
14. ### Eviews 9 Tutorial Fixed Effects And Random Effects Two Stage Least Squares

https://www.youtube.com/watch?v=M8OuLQYHDrM Fixed Effects And Random Effects Two Stage Least Squares (2SLS) regression analysis is a statistical...

• Replies: 0
• Views: 1,528
09-18-2016, 11:44 PM
15. ### Time series or not?

I am working with three series of 33 yearly observations each. My goal is to understand causality and the long run relationships between them; one of...

• Replies: 3
• Views: 2,454
09-17-2016, 12:10 PM
16. ### Multivariate models - standard error help

I have 2 multivariate models created in R concerning nutrition Model 1 = -11.5±1.68 + 0.56±0.562 Intake + 16.6±0.165 Potassium concentration ...

• Replies: 0
• Views: 832
09-16-2016, 06:14 AM
17. ### Logistic Regression of Weekly NFL Data

This guy uses a type of regression to predict NFL games: http://trevorbischoff.com/amos-2016-nfl-predictor/

• Replies: 1
• Views: 1,109
09-14-2016, 09:38 AM
18. ### Regression analysis and reflective vs. formative scales

Hey there, I am using multiple regression analysis to analyse the data of an empirical study in the behavioural science. One of the scales I'm...

• Replies: 0
• Views: 752
09-11-2016, 08:19 AM
19. ### Same variable on both sides - how to resolve this?

I have a regression which is supposed to capture the effect of R&&D expenditures on stock returns, given some controllers X1, X2 and volatility, i.e....

• Replies: 1
• Views: 1,364
09-11-2016, 07:42 AM
20. ### What Kind of Regression Do I Need for This?

I have a data like this. I need to find 7 predictors' coefficients for the best model to predict dependent. It can only be 1 and 0. A B ...

• Replies: 6
• Views: 894
09-09-2016, 03:09 PM
21. ### Forecasting with Google Trends

Hi Guys, I try to investigate wether Google Search data can improve a forecasting model for the German housing market regarding prices and...

• Replies: 0
• Views: 803
09-09-2016, 05:52 AM
22. ### Research Help_Regression Analysis_Log Transformation for Better Fits

Dear All, I'm doing a research on the estimation of "Tunnel Cost" for which I carried out some regression analysis based on data of 30 tunnel...

• Replies: 2
• Views: 1,122
09-07-2016, 02:26 PM
23. ### Categorical multiple linear regression analysis - what would you do?

Noob here. I'm doing a project to determine how different factors (race, insurance status) are related to distance from pediatric urologists. I'm...

• Replies: 4
• Views: 895
09-05-2016, 07:16 PM
24. ### VIF issues

Good afternoon, I ran a hierarchical regression model, (main effects in step 1, two-way in step 2 and three-way in step 3). My VIF in step 1 are...

• Replies: 5
• Views: 1,579
09-05-2016, 09:16 AM
25. ### Binary Logistic Regression Assumptions Testing

Hi there, I am having difficulties testing some of the assumptions while conducting a binary logistic regression for an exploratory study. 1....

• Replies: 9
• Views: 1,188
09-03-2016, 03:05 AM
26. ### Need some ideas

I need to present something, anything and if anyone has any idea what I can do with this data and how I can pitch it, it would be appreciated. ...

• Replies: 1
• Views: 507
09-02-2016, 04:39 PM
27. ### Cave Temperature Analysis, Real life management issues.

Hi, I've taken math course's up to Calc III and Diff Eq, but never a statistics course. So I was hoping this forum could help me. I am working...

• Replies: 0
• Views: 740
09-02-2016, 12:13 PM
28. ### Model conception

Hello! I have a basic stats question: I want to model a phenomenon, and estimate parameters. How many observations would I need, to be as...

• Replies: 0
• Views: 696
09-01-2016, 04:44 AM
29. ### Multivariate responses

Hey guys, Needed some help on this. Say there is a question what would you spend on : 1) Car 2) House 3) Wedding 4) *** 5) ***

• Replies: 1
• Views: 812
08-31-2016, 10:17 PM
30. ### Interaction between categorical and scale variables?

Hi, I'm supposed to conduct a regression analysis between two variables, controlling for a third. My issue is that all of the output I'm getting in...

• Replies: 2
• Views: 929
08-31-2016, 06:17 AM
31. ### Comparing fit of GLM to OLS regression

Hello talkstat. First post in this magnificent forum! In my master thesis I'm estimating health care expenses to patients, who has experienced...

• Replies: 8
• Views: 1,500
08-29-2016, 06:28 AM
32. ### Mixed Logit Regression Problem with AIC / BIC

Hi, I am new to this forum and have trouble with my mixed logit regression model. I have conducted an experiment with 169 participants who each...

• Replies: 0
• Views: 1,357
08-29-2016, 06:22 AM
33. ### Why do you divide by n-1 to find sample variance? Linear regression

Okay I have very limited knowledge on statistics but I'm wondering why the hell you divide the numerator in the sample variance formula by n-1. I've...

• Replies: 2
• Views: 2,164
08-28-2016, 03:31 PM
34. ### R-squared and Standard Error of weights focuses too much on centre of distribution

Hello, I got slides from A.Pelsser presentation about replicating portfolios and there was a claim that R-squared na Standard Error of Weights...

• Replies: 0
• Views: 1,187
08-28-2016, 04:42 AM
35. ### Regression Analysis thoughts - Could I model my data this particular way?

Hello, Looking for a guidng hand with a regression problem that I have managed to create. Apologies for my lack of statistical knowledge, but if...

• Replies: 1
• Views: 779
08-26-2016, 01:20 PM
36. ### Necessary to rank transform ANCOVA?

Hi all, I'm hoping you can shed some light. My data are non-parametric, so I thought I'd have to use ranks in order to do ANCOVA, but then I read...

• Replies: 17
• Views: 2,712
08-25-2016, 01:10 AM
37. ### Variance of single element of random effects in linear mixed model

Hi there, I have recently been working a bit with linear mixed model and in order to enhance my understanding of those, I would like to know the...

• Replies: 4
• Views: 1,118
08-24-2016, 10:38 AM
38. ### Regression analysis : with ranking data

In my survey I have independent variables of age , sex and length of membership I have then have a question where I ask participants to rank 5...

• Replies: 2
• Views: 1,026
Epy
08-24-2016, 04:21 AM
39. ### Lag Lenght

Hi guys. I am making research and I am faced with some problem. I have VAR model and try to conduct ADF test. I use Schwarz criteria for defining lag...

• Replies: 0
• Views: 717
08-24-2016, 04:00 AM
40. ### Interpreting an interaction effect

Hi All, Last year I ran an experiment where I measured the behaviour of a songbird (how long it took them to approach a speaker playing their...

• Replies: 6
• Views: 1,566
08-23-2016, 04:57 AM
41. ### Moderator analysis: regression x partial corr.

Hi, I hope someone can answer my question soon. I am helping my friend with research. She has independent variable X and dependant variable Y and...

• Replies: 1
• Views: 1,280
08-20-2016, 08:58 PM
42. ### linear regression without intercept with dummy variables

Hello, i run simple linear with one dummy variables and no intercept. i would like to understand the meaning of this. for example, my beta1=1.2,...

• Replies: 1
• Views: 1,486
08-20-2016, 06:13 AM
43. ### Combining data from different sources

Hi, I have data from two very different sources (bird counts from ships and bird counts from the shore) which aim to estimate the same...

• Replies: 2
• Views: 895
08-19-2016, 01:28 PM
44. ### Level-2 in growth models

Dear all, Perhaps someone could help me with a more detailed explanation why time is specified as a level-2 variable in the growth models...

• Replies: 0
• Views: 427
dnh
08-19-2016, 05:25 AM
45. ### Regression analysis with sales forecasting

Hello, I am in the process of using a regression model to help predict the forecast of soft drinks. I have 52 sets of weekly data and my...

• Replies: 1
• Views: 977
08-17-2016, 10:32 PM
46. ### Logistic regression data set

Hi all. I am in search of a public data set online where I could run a logistic regression. The data should be about 10-20 variables and a fairly...

• Replies: 1
• Views: 843
08-17-2016, 01:51 PM
47. ### Fama-Macbeth cross-sectional regression interpretation

Hello everyone, I have applied Fama-Macbeth cross-sectional regression on Fama and French five-factor model (2014). On the left-hand side are the...

• Replies: 0
• Views: 1,278
08-17-2016, 12:59 PM
48. ### Estimating uncertainty/error in multi-measurement, multi-replicate analysis

Please forgive my ignorance, it has been a while since error analysis in college and I am at a loss trying to estimate error for the following...

• Replies: 0
• Views: 606
08-16-2016, 05:35 PM
49. ### Reporting Multiple Regression with Categorical Variable(s)

Hi everyone, I'm overthinking one of my analyses and need a community sanity check. :) For simplicity's sake, let's say that my basic multiple...

• Replies: 2
• Views: 919
08-16-2016, 11:55 AM
50. ### Interaction effect

Hey guys, I would like to investigate effect of a treatment in randomized control trial. Also, I would like to investigate the moderating effect...

• Replies: 4
• Views: 885
08-15-2016, 01:13 PM
51. ### How to visualize linear multiple regression?

Hello, I have data from measuring und now i have made linear multiple regression to describe one size from five another sizes. I have get an...

• Replies: 3
• Views: 1,411
08-15-2016, 07:25 AM

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