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# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### Regression with "fuzzy" values

Hello Stats-People, I want to do a regression analysis. Therefore I have my dependent variable in a metric format (values ranging from 0.7-10000)....

• Replies: 2
• Views: 1,821
07-18-2011, 03:40 AM
2. ### '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: 1,989
07-18-2011, 08:28 AM
3. ### An easy question about Generalized Linear Model

Hello everyone, I just started using GLM and was stuck by an easy question of GLM. If I already obtain the estimates of the parameters, let's...

• Replies: 4
• Views: 2,342
07-18-2011, 02:02 PM
4. ### Gretl - Pooled Time Series Cross Sectional Data

I've been working on a multiple regression analysis on bank failures using a probit model. I am currently using cross sectional data but I would...

• Replies: 1
• Views: 5,286
07-18-2011, 05:35 PM
5. ### New here, I have a question about checking if a set of numbers are regressive

Hi! I'm new here, I'd like to know how does one check if a set of data is regressive? Thanks.

• Replies: 1
• Views: 1,863
07-19-2011, 01:27 AM
6. ### Basic information on binary logistic regression

Can anyone point me in the direction of a webpage that provides an overview of the binary logistic regression technique and ideally instructions on...

• Replies: 1
• Views: 3,016
07-19-2011, 08:27 AM
7. ### Linear regression of autocorrelated time series

Hi everyone, I am doing an analysis of two time series using linear regression. Now I would like to now if the regression coefficient and...

• Replies: 0
• Views: 2,092
07-19-2011, 04:15 PM
8. ### Comparison of non-linear regressions from two different samples

Hi at all! I got a big problem during my data analysis and I’m already looking for a solution a few days. I hope somebody here can help me. I...

• Replies: 1
• Views: 6,401
07-19-2011, 08:13 PM
9. ### Comparison of linear and power law regression models

I'm quite a newb at statistics, with only one college-level statistics course behind me. I apologize in advance if my terminology and/or...

• Replies: 0
• Views: 3,232
eis
07-20-2011, 01:43 PM
10. ### Coefficients in linear regression

hi i am using spss 17.0 i am using linear regression to predict behaviours for the coefficent output does the constant and the indperpentant...

• Replies: 6
• Views: 3,429
07-21-2011, 03:32 PM
11. ### Regression interpretation

Hey guys, I'm doing an OLS regression with an ending balance (econometrics class) as my dependent variable and the S&P 500 (among others) as my...

• Replies: 0
• Views: 3,260
07-22-2011, 01:14 PM
12. ### standardised coefficients

Hi there, I have a basic question - SPSS output gives me unstandardized coefficients and standardized coefficient (the latter looking much nicer -...

• Replies: 7
• Views: 3,732
07-23-2011, 04:51 PM
13. ### Mixed effects modelling

Hey all, Im building a linear mixed effects model of a variable, lets say the headway time maintained by drivers in car following situations. I...

• Replies: 0
• Views: 1,470
07-24-2011, 07:12 AM
14. ### what changes if I add an autoregressive AR(..) term?

Hello everyone! I'm working on a time series regression, which I want to keep linear. I have trouble with serial correlation, there is serious...

• Replies: 0
• Views: 2,292
07-25-2011, 10:21 AM
15. ### Linear mixed models vs conditional likelihood

Hey guys, Thought I'd share something interesting that I came across yesterday with another biostatistician. See what you guys think. ...

• Replies: 0
• Views: 1,691
07-26-2011, 10:33 AM
16. ### Multiple linear regression on rank transformed data - good way to deal with outliers?

Hi, I am looking to see if a number of different environmental factors could affect production of a metabolite. I ran a stepwise multiple...

• Replies: 0
• Views: 2,799
07-26-2011, 02:16 PM
17. ### including population as control when dependent variable is defined as per-capita?

Hi all, So I have a model where the dv is per-capita spending and I wonder whether it would be appropriate to include population as a control...

• Replies: 0
• Views: 1,825
07-26-2011, 08:25 PM
18. ### Power-law relation (Help Please)

Hi there, I wonder if you can kindly help me with questions below 1) I have data to apply for a power-law relation (A=B*C^D). I am using excel to...

• Replies: 3
• Views: 2,187
07-26-2011, 09:28 PM
19. ### pearson correlation with linear regression scenario please!

I was wondering if anyone could give me an example of a pearson correlation with linear regression scenario?

• Replies: 1
• Views: 2,924
07-27-2011, 05:22 PM
20. ### using utilities of different attribute levels (from conjoint analysis) in regression?

In short, I am trying to measure factors influencing an intention-to-purchase a product, with use of a regression. However, some of my constructs...

• Replies: 1
• Views: 2,368
07-27-2011, 05:29 PM
21. ### Std deviation of correlation coefficient?

Hi I've run a VAR model to find the correlation coefficient between two stock markets. Now I need to find the standard deviation of this...

• Replies: 1
• Views: 2,934
07-27-2011, 07:29 PM
22. ### Can I do this?

Hey everyone :) I was wondering if I could do this. I have a dependent variable that is age. N = 228. Each participant answered a question which I...

• Replies: 0
• Views: 1,643
07-28-2011, 08:32 AM
23. ### deviance

can anybody please tell me why we need to multiply difference of likelyhoods by "-2"? Where this 2 came from, why not 3? Could not find answer

• Replies: 3
• Views: 2,170
07-29-2011, 11:24 AM
24. ### The DV is binary, and two IVs are times series data, how to do regression?

Hi guys, please help!!!! I want to do regression on a data having such fields: Loan_number Date default_nextmonth Unemployment_rate ...

• Replies: 1
• Views: 2,046
07-29-2011, 09:34 PM
25. ### how to get the standard error of this formula?

Hello. I am stuck in solving following 3 and 4 questions. What is the difference between constant term and intercept term? I cannot get the...

• Replies: 0
• Views: 1,840
07-30-2011, 11:24 AM
26. ### Entering control variables

I'm looking for some help on if it's possible to enter aggregate level controls into individual level analyses. For example, if I'm looking at the...

• Replies: 2
• Views: 2,632
07-31-2011, 04:49 AM
27. ### Multiple Regression: Dependent Variable has sub-categories

I want to be able to predict Total Spare Part Costs (Y). There are 2 types of spare parts contributing to the total costs. Let Spare Part 1 = SP1...

• Replies: 4
• Views: 4,153
07-31-2011, 06:07 PM
28. ### warning - may require help

Hello all you stats, and indeed non-stats, fowk I'm reasonably au fait with my stats methods. However, I don't have access to SPSS, which is my...

• Replies: 1
• Views: 1,752
08-01-2011, 03:48 AM
29. ### multiple linear regression on MI data

Hello, I have just ran a stepwise multiple linear regression on multiply imputed data. I have R2, F and P values for the MLRs carried out on...

• Replies: 0
• Views: 1,438
08-02-2011, 09:50 AM
30. ### Checking MI data residuals

Hello, I was wondering, what is the best ways to check the residuals of a multiple linear regression on multiply imputed data? Is it a case...

• Replies: 0
• Views: 1,609
08-02-2011, 10:02 AM
31. ### which model to use?

I have a dependent variable that is limited and discrete (it goes from -9 to 9 in whole numbers), yet the residuals produced from a linear regression...

• Replies: 10
• Views: 3,239
08-03-2011, 01:34 PM
32. ### Analytical linear regression?

My lecturer stated that no method exists to determine the line of best fit for a set of data analytically. He went on to state that computers through...

• Replies: 6
• Views: 5,263
08-05-2011, 06:01 PM
33. ### Appropriate Statistical Method :: Nonlinear Dynamic System Identification

Hey, I should probably mention beforehand, that I am relatively new to statistics. My problem is the following: I am doing nonlinear dynamic...

• Replies: 0
• Views: 1,594
08-06-2011, 08:31 AM
34. ### Sum of Residual equal to zero

I want to know why when you multiply the residual by Y_hat the sum of this new equation is still zero? So in other words I have summation from 1...

• Replies: 4
• Views: 10,251
08-07-2011, 11:17 PM
35. ### Variance of error

With the equation yi = B0 + B1xi + ei Does anyone know what the variance of ei_hat is suppose to equal? So far I have tried to split it the ei...

• Replies: 0
• Views: 3,265
08-08-2011, 01:15 AM
36. ### Multiple Interaction terms in Logistic Reg

Alright, it is Monday afternoon and my brain has shut down. It took me ~ 10 minutes just to figure out where to click in order to make this post. ...

• Replies: 1
• Views: 2,320
08-09-2011, 05:19 AM
37. ### Regression with replicates? ANCOVA?

Hello, I am confused, I think that the problem is really simple, but somehow cannot get hold of this. First, the simpler question. I have...

• Replies: 0
• Views: 1,745
jw3
08-09-2011, 09:23 AM
38. ### Fitting data with Cauchy-noise

Not sure if this is the right board to post this on, but perhaps someone can help me. I've got two sets of data that can be modeled as something...

• Replies: 0
• Views: 1,644
gct
08-09-2011, 10:30 AM
39. ### 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: 2,395
08-09-2011, 02:51 PM
40. ### Multiple Linear Regression problem

Hi Guys, I am breaking my head with a problem, maybe you can help me.... I have a sensor, sensitive to gas. I need to model the response of the...

• Replies: 2
• Views: 1,711
08-09-2011, 03:17 PM
41. ### Ncaaf multiple regression

I want to do a mutiple regression analysis, with one of my independent variables being the number of seniors, juniors, ... On a football team. I...

• Replies: 5
• Views: 2,837
08-10-2011, 12:19 PM
42. ### Multiple Experimental Conditions/MANOVA

Hi, I'm new to SPSS and am not sure which tests I need to run to analyze my data. I want to compare product evaluations across 4 experimental...

• Replies: 2
• Views: 2,432
08-10-2011, 03:03 PM
43. ### need urgent replies (multiple regression)

I am totally confused with how to explain the outcome of multiple regression.i have to submit a project tommorow.i am a dumb i know but i need help i...

• Replies: 2
• Views: 2,015
08-12-2011, 05:43 AM
44. ### multicolinearity of dummy and numerical variables

Hello, I saw few related messages concerning multicolinearity in this Forum but it did not clared out in my case. So, I have general linear model...

• Replies: 0
• Views: 2,235
08-12-2011, 12:05 PM
45. ### Mini job

Hello, are there anyone who are interested in a mini job about regression analysis? Thank you MikkelSoeren

• Replies: 0
• Views: 1,907
08-14-2011, 10:22 AM
46. ### Homework, I Need help please

I got 3 models about the American election: 1) y=a+B1*x1 + B2*x2 + u 2) log(y)=a+B1*x1+B2*x2 + u 3) y=a + B1(x1-x2) + u where:...

• Replies: 1
• Views: 2,231
08-15-2011, 06:30 AM
47. ### Hypothesis

If you got this model: mode 1) y=a +b1x1 + b2x2 + u and this: mode 2) y=a + b1(x1-x2) + u What do you call the restriction there has...

• Replies: 19
• Views: 5,626
08-15-2011, 09:21 AM
48. ### Help with collinearity

Hi, I have a collinearity problem with my data. How do I deal with this? the variable which has collinearity is important, so I can't remove it from...

• Replies: 3
• Views: 2,412
08-16-2011, 10:40 AM
49. ### Research Question Regarding Logistic Regression

Hi all, I am conducting a medical study with n=179 subjects and have something like 30 independent variables that I am comparing to 1 outcome. I...

• Replies: 3
• Views: 2,766
08-16-2011, 12:32 PM
50. ### interval valued data regression

Hi all, I´m just wondering if there is some way how to handle interval valued data regression? To be more specific I will just briefly describe my...

• Replies: 0
• Views: 1,971
08-16-2011, 03:06 PM
51. ### Multiple Linear Regression in Environmental Justice Analysis

Hi, I have 982 data points (census block groups) for which I have information on % minority and low income, and levels of air pollution. I did MLR...

• Replies: 3
• Views: 3,119
08-18-2011, 04:50 PM
52. ### Linear Regression Without intercept ?

hello i m little confuse i want to know that when its is suitable to use regression without intercept ? Any advantage over using linear regression...

• Replies: 10
• Views: 28,596
08-21-2011, 02:34 AM
53. ### Multiple Linear Regression Model- Help for Prediction

Hi, I am trying to predict protein solvent accessibility using R, and I need some help. So, I have set of 270 proteins with 76,000 residue. The...

• Replies: 0
• Views: 2,602
08-22-2011, 05:32 PM

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