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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. Question Dummy variable in a Fixed effects (FE) model

    Hello :-) I am doing a paper where I examine the Scandinavian welfare model effect on inequality in the Scandinavian countries. I examine it using...

    Started by JoLinda91‎, 03-03-2016 05:54 AM
    • Replies: 4
    • Views: 1,684
    03-10-2016, 02:35 PM Go to last post
  2. Dummy Variable Interactions

    Hi all, At the moment I'm working on an analysis of wage inequality and have come across a considerable stumbling block. I am trying to compare...

    Started by highlux‎, 07-23-2014 01:33 AM
    • Replies: 2
    • Views: 1,305
    07-23-2014, 01:39 PM Go to last post
  3. dummy variable multiple regression

    Hello guys, I am doing a project on calendar affects(seasonality) in the stock market for which i am trying to perform a dummy variable regression...

    Started by Manasa‎, 02-17-2011 08:45 AM
    • Replies: 2
    • Views: 8,837
    02-17-2011, 12:04 PM Go to last post
  4. Dummy variable question in regression

    Hello, I'm trying to understand dummy variables in regression. I'm regressing the price of diamonds against (1) weight (2) Clarity and (3)...

    Started by bradyj2‎, 04-24-2012 01:35 PM
    • Replies: 2
    • Views: 2,107
    04-26-2012, 11:26 AM Go to last post
  5. Dummy variable regression with a few observations

    Dear all, I have 26 observations about Italian cities. I would like to control for regional fixed effects by adding a dummy variable for each...

    Started by alice88‎, 11-09-2013 12:22 PM
    dummy, fixed effects
    • Replies: 0
    • Views: 1,252
    11-09-2013, 12:22 PM Go to last post
  6. dummy variables

    Hello everyone, Regarding my regression model i have several missing observations regarding one of my independent variable, in this case Research...

    Started by slacknoise‎, 07-27-2012 04:39 AM
    • Replies: 4
    • Views: 3,172
    07-27-2012, 06:49 AM Go to last post
  7. Dummy Variables

    Is there a limit to the number of independent variables that can be dummy coded for multiple regression as well as linear regression. In other words,...

    Started by stats2013‎, 08-19-2012 09:53 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 4,752
    08-20-2012, 05:15 PM Go to last post
  8. Dummy variables (and poster!)

    Hi, Could someone please help me understand dummy variables? If I had a variable which was “Religion” that was coded: 1 = Catholic 2 =...

    Started by Kenny‎, 11-16-2014 12:42 PM
    • Replies: 1
    • Views: 1,215
    11-16-2014, 03:52 PM Go to last post
  9. Dummy Variables and Multiple Regression

    Hi, if someone could make this clear for me, would be much appreciated.. Is it possible to create a dummy variable for more than one outcome. ...

    Started by janeduluth‎, 03-20-2008 11:50 AM
    • Replies: 3
    • Views: 6,303
    03-20-2008, 03:09 PM Go to last post
  10. Dummy variables with categorical data with multiple levels.

    This always seemed easy to me, largely because I always had an obvious reference group before or I was dealing with variables that had only 2 levels....

    Started by noetsi‎, 02-28-2016 07:44 PM
    • Replies: 12
    • Views: 2,789
    03-21-2016, 08:13 AM Go to last post
  11. dummy varibles

    i have some data where i am trying to see if there is any salarie discrimination in gender between men and women do i need to make a dummy for...

    Started by diesel20056‎, 12-18-2011 03:09 PM
    • Replies: 2
    • Views: 1,887
    12-18-2011, 04:39 PM Go to last post
  12. Dummy's, significant and not significant

    I have in my model two dummy's, for a categorical variable with 3 categories (native, EU-immigrant and non-EU-immigrant). The reference category is...

    Started by Mathis‎, 01-04-2013 05:56 AM
    • Replies: 1
    • Views: 1,129
    01-05-2013, 07:07 AM Go to last post
  13. Durbin watson

    :confused: :confused: i'm in a big big problem? i'm a demonestrator in medical statistics department this week i have to prepare a seminar about...

    Started by Ghada‎, 08-27-2006 03:34 AM
    • Replies: 0
    • Views: 3,891
    08-27-2006, 03:34 AM Go to last post
  14. Durbin Watson related with outliers?

    I am trying to run a multiple regression with a sample data belongs to a cohort of 500 subjects. My dependant variable is a psychological score...

    Started by rezzak‎, 07-14-2014 08:15 AM
    durbin watson, outliers
    • Replies: 3
    • Views: 2,519
    07-15-2014, 09:07 AM Go to last post
  15. Durbin-Watson

    Hi, Do I need to run a Durbin-Watson test if I am finding regressions for the number of second-language words learnt in a week based on age in...

    Started by becread95‎, 04-29-2015 09:12 AM
    • Replies: 2
    • Views: 1,868
    10-16-2015, 04:18 PM Go to last post
  16. Durbin-Watson bound dU>2.0

    Hello. I was wondering, how to interpret bounds of Durbin-Watson test (dU, dL) if dU is greater than 2.0. I know that it is an extreme case, but just...

    Started by harel‎, 10-17-2015 09:40 AM
    durbin-watson, ols regression
    • Replies: 0
    • Views: 2,061
    10-17-2015, 09:40 AM Go to last post
  17. Durbin-Watson statistic below 2, fixed effect model

    Hello I am asking for your advice. I am working with unbalanced panel data set. Sample contains data about 11 largest Finnish insurance companies,...

    Started by Runner‎, 04-11-2015 02:50 AM
    • Replies: 0
    • Views: 2,181
    04-11-2015, 02:50 AM Go to last post
  18. Durbin-Watson table

    Hi.. Anyone here know how to determine whether we violated the assumption for durbin watson test... i found the table but the max sample size is...

    Started by psychology_student‎, 11-28-2011 09:17 AM
    • Replies: 3
    • Views: 4,952
    11-29-2011, 11:11 AM Go to last post
  19. DV is a RANK with highest 1 and lowest 899 - what is the proper estimation method?

    Hello dear forum members! I want to do a robustness check of the estimates that I have obtained previously using OLS estimation. In that case the...

    Started by kiton‎, 01-25-2015 07:23 PM
    • Replies: 11
    • Views: 2,178
    01-26-2015, 04:19 PM Go to last post
  20. DV Transformation Changes Sign of Correlation in Regression

    Hi Everybody, I've run into an issue with my data and was hoping this community might have some ideas. I am running several multiple...

    Started by evaporated3‎, 04-06-2010 10:44 AM
    • Replies: 0
    • Views: 2,600
    04-06-2010, 10:44 AM Go to last post
  21. Dynamic panels

    Did someone have done a serious work/report on dynamic panel with stata or Eviews? Ibegin in this field for my PHD.Please email...

    Started by canfly‎, 02-15-2017 05:58 PM
    • Replies: 0
    • Views: 1,931
    02-15-2017, 05:58 PM Go to last post
  22. Dynamic Regression

    Can we determine dominant factors using dynamic regression model?

    Started by Carlyn‎, 10-29-2011 10:36 PM
    • Replies: 0
    • Views: 1,578
    10-29-2011, 10:36 PM Go to last post
  23. Easy Bayesian Statistics

    Well the thread title was to get your attention. About a month ago I attended a workshop on Bayesian statistics. It introduced the basic principles...

    Started by hlsmith‎, 07-29-2017 11:41 AM
    • Replies: 1
    • Views: 298
    07-31-2017, 08:49 AM Go to last post
  24. Easy but need help

    Hi all! I am doing an experiment involving the age children started wearing glasses and comparing this to the age a parent started wearing glasses....

    Started by cwdaughtry‎, 12-15-2012 03:39 PM
    • Replies: 1
    • Views: 1,389
    12-15-2012, 09:31 PM Go to last post
  25. Easy question

    Dear friends: I hope you can help me with this question: I have data of the identity for the GDP=C+I+G+X-M. If I regress C+I+G+X-M, in log...

    Started by cmontalvo‎, 01-08-2011 04:01 PM
    • Replies: 1
    • Views: 2,302
    01-08-2011, 09:36 PM Go to last post
  26. Easy Questions: Simple regression

    Hi, I have three questions for you on which I have issues: Should I use correlation test or simple regression: that "ratio data" is...

    Started by Robjam‎, 04-21-2011 07:55 AM
    • Replies: 3
    • Views: 2,817
    04-21-2011, 03:51 PM Go to last post
  27. Question Effect Coding: p-value of reference category

    Hi, I fit a regression model with effect coded variables. I'm well aware of how to compute the value for the reference category but I have...

    Started by Chris25‎, 02-18-2013 03:39 AM
    effect coding, p-value, regression, standard deviation
    • Replies: 2
    • Views: 4,265
    02-19-2013, 03:38 AM Go to last post
  28. Question effect size in hierarchical multiple regression (categorical predictor)

    Hello all So glad to have found this useful forum and have already gotten some clarity on other issues related to the hierarchical regression...

    Started by sybil‎, 07-30-2008 01:23 PM
    • Replies: 0
    • Views: 4,428
    07-30-2008, 01:23 PM Go to last post
  29. effect size in multiple linear regression

    Hello, I have (from SPSS) many multiple regression analyses, and each one has about 7-8 independent variables. I need to find the effect size-in...

    Started by penvla‎, 07-04-2012 04:37 AM
    • Replies: 1
    • Views: 3,145
    07-04-2012, 06:44 AM Go to last post
  30. Effect size in multiple regression

    Hello, I'm using this this calculator to determine a rough sample size for a multiple regression (20 predictors). ...

    Started by bradyj2‎, 09-20-2012 08:53 AM
    • Replies: 5
    • Views: 6,659
    09-20-2012, 11:30 AM Go to last post
  31. Effect Size in Poisson Reg with a Binary Predictor

    Well, I don't regularly come across count variables as dependent variables. What is the best effect size to report for a Poisson reg model with a...

    Started by hlsmith‎, 04-07-2016 11:12 AM
    • Replies: 2
    • Views: 1,478
    04-07-2016, 01:26 PM Go to last post
  32. 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...

    Started by carlsonturner‎, 06-28-2016 09:45 AM
    • Replies: 2
    • Views: 1,079
    06-28-2016, 01:45 PM Go to last post
  33. Effect test and ordinal regression in SPSS

    I am having problems with doing an ordinal regression analysis that I hope you can help me with. I have one ordinal variable (dependent) and want...

    Started by Kasperat‎, 07-12-2012 03:29 AM
    • Replies: 0
    • Views: 1,749
    07-12-2012, 03:29 AM Go to last post
  34. Effective DoF with lag1 autocorrelated data...how to actually incorporate ?

    Hi all, I have some time series data that is auto-correlated, and I am trying to account for in my correlation analysis. I have found out how to...

    Started by iceman92‎, 06-18-2016 12:13 AM
    • Replies: 2
    • Views: 1,039
    06-20-2016, 02:41 AM Go to last post
  35. Effects of general participation and intensity of participation

    Exploring data from a quasi-experimental study, we want to investigate effects of general participation in a program (dichotomous; part_dich) aswell...

    Started by l.frei‎, 02-08-2016 05:30 AM
    general participation, participation intensity, quasi-experimental study
    • Replies: 5
    • Views: 1,945
    02-10-2016, 08:48 AM Go to last post
  36. Elasticity from linear and log-log regression model

    I am having problem understanding the calculation of elasticity. if I am using the log-log model eg: log(Y)=constant+β1 log(X1)+β2 log(X2) . So i...

    Started by korzuen‎, 03-31-2017 01:11 PM
    elasticity, log, regression
    • Replies: 3
    • Views: 1,402
    04-01-2017, 01:22 AM Go to last post
  37. Elasticity with negative predictors

    Hello All: I am trying to determine elasticity of demand using relative price position (my price minus competitors price) as the predictor. I know...

    Started by brewnami‎, 05-11-2012 09:23 AM
    • Replies: 2
    • Views: 1,997
    06-04-2012, 02:00 PM Go to last post
  38. elimination of 0-values in multiple regression

    hi there ... i am running a multiple regression analysis to where the independant variables are various types of food consumed, and the dependent...

    Started by jamesprasad7‎, 02-23-2013 11:24 AM
    • Replies: 0
    • Views: 1,657
    02-23-2013, 11:24 AM Go to last post
  39. Embarrasingly easy question re. Regression analysis/Forecasting/Time Series

    Hi, I have sales data for 2 years, over various product types, like this: Date Product Quantity Sold Total sales invoice Price per unit a a...

    Started by lizzerous‎, 12-05-2012 02:26 PM
    • Replies: 3
    • Views: 1,839
    12-05-2012, 02:38 PM Go to last post
  40. Endogeneity in longitudinal regression analysis

    Hi all, I'm doing regression analysis on panel data. I control for omitted variables using a fixed-effects model. However, it seems that my...

    Started by jaluoma‎, 08-11-2010 09:55 AM
    • Replies: 0
    • Views: 2,632
    08-11-2010, 09:55 AM Go to last post
  41. Endogenous variable

    Hi, I am implementing a two-stage OLS regression to account for the endogeneity of a variable. My instruments are time invariant. However, the...

    Started by tiab2005‎, 12-07-2011 05:40 PM
    endogeneity, instrumental variables, two-stage ols
    • Replies: 1
    • Views: 1,456
    12-10-2011, 12:30 PM Go to last post
  42. Endogenous variable

    Hi, can someone please explain in a simple way what does it mean "variable is correlated with the error term"? Thanks.

    Started by john_f‎, 12-21-2014 04:40 PM
    endogenous, regression, variable
    • Replies: 3
    • Views: 1,996
    12-22-2014, 05:05 AM Go to last post
  43. Enter the product term of 2 variables in linear regression?

    How can you enter the product term of 2 variables in linear regression? One is gender (categorical) and the other one is continous (Scored 1-200). ...

    Started by statn00b‎, 01-18-2012 01:11 PM
    • Replies: 1
    • Views: 2,357
    01-19-2012, 04:15 AM Go to last post
  44. 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...

    Started by lmsava‎, 07-29-2011 07:15 AM
    • Replies: 2
    • Views: 2,649
    07-31-2011, 04:49 AM Go to last post
  45. Entering predictors sequentially for multinomial logit?

    Hello, I have a set of data with a 3-level outcome variable and multiple predictor variables; I am testing a hypothesis about whether a certain...

    Started by ganajr‎, 05-09-2012 11:02 PM
    logistic regression, multinomial regression
    • Replies: 2
    • Views: 2,516
    05-17-2012, 11:12 AM Go to last post
  46. Entering variables: Part or partial correlation

    Hi, The software packages I have seen display and use partial correlation - but not part correlation - to select the iv that will enter the...

    Started by webithet‎, 12-18-2012 11:35 PM
    • Replies: 0
    • Views: 900
    12-18-2012, 11:35 PM Go to last post
  47. equation -regression analysis. Please Help.

    Please see below and let me know if the general equations for a straight line match with the following research questions. Research Question 1....

    Started by eunkum‎, 11-27-2013 03:10 PM
    • Replies: 0
    • Views: 1,181
    11-27-2013, 03:10 PM Go to last post
  48. Question equivalence of t-test and F-test in ANOVA

    Something about ANOVA is confusing me. Say you have a regression model: y = b0 + b1*x1 (where b0 and b1 are coefficients and x1 is an...

    Started by rayuk‎, 12-26-2010 10:33 PM
    • Replies: 2
    • Views: 9,226
    12-26-2010, 11:21 PM Go to last post
  49. Error assumptions violated

    I have a data set on which i have been asked to run a regression analysis. However, the data violates the assumption of normality of the errors. At...

    Started by Prometheus‎, 01-21-2014 07:29 AM
    • Replies: 3
    • Views: 1,508
    01-21-2014, 11:44 AM Go to last post
  50. Error contribution from covariance in linear regression

    Hello, I try to consider the covariance in the error analysis of a linear regression with few data points. I could not find for this a worked...

    Started by Asterix‎, 07-24-2012 08:35 AM
    • Replies: 8
    • Views: 3,074
    08-02-2012, 08:07 AM Go to last post
  51. Error distribution and non linear models.

    Ok, I am reformulating this question because it started rather silly. As I always point out, my background is not statistics so please excuse my...

    Started by darfunkel‎, 02-16-2011 11:31 AM
    • Replies: 0
    • Views: 1,999
    02-16-2011, 11:31 AM Go to last post
  52. Error estimate for prediction from regression

    I am working with SPSS and I have performed a multiple linear regression with 3 predictors. I am trying to calculate a 95% confidence level error...

    Started by rim‎, 11-15-2013 08:46 PM
    • Replies: 0
    • Views: 1,252
    11-15-2013, 08:46 PM Go to last post
  53. Error estimates with r2 in linear regression

    I have been given the results of some regression analysis, where some variable y is a function of x1 and x2. I have a r2 value for the analysis, and...

    Started by mh8782‎, 09-18-2009 04:29 AM
    • Replies: 2
    • Views: 3,080
    09-18-2009, 09:44 AM Go to last post
  54. Error from calculation of X from Y response in linear regression

    Hello, I have what I am pretty sure is a simple problem that I can't get a hold on and could use some help! I am sampling air and using a gas...

    Started by pom134‎, 09-03-2015 08:28 AM
    • Replies: 1
    • Views: 1,043
    09-03-2015, 09:19 AM Go to last post
  55. Error in data matrix, least square error analysis

    Dear all, I am trying to reach an expression for the mean square error (mse) when the data matrix 'A' in the classical least square problem Ax=b...

    Started by sensor101‎, 02-10-2012 02:17 PM
    • Replies: 0
    • Views: 1,799
    02-10-2012, 02:17 PM Go to last post
  56. Error propagation for non-linear regression parameters

    Hi, I've been doing non-linear regression on some datasets using R. The regression outputs parameter estimation and parameter standard error (SE)...

    Started by jorfid‎, 07-03-2012 10:46 AM
    error propagation, non-linear regression
    • Replies: 0
    • Views: 2,391
    07-03-2012, 10:46 AM Go to last post
  57. Error Propagation in Multivariable Regression

    I've spent all day reading Matlab tutorials and can't seem to find anything about propagating error in regression analysis. I have a set of x and y...

    Started by lizakova‎, 04-20-2011 05:41 PM
    • Replies: 0
    • Views: 2,990
    04-20-2011, 05:41 PM Go to last post
  58. Error Propagation in Separate Binomial Logistic Regressions

    On http://en.wikipedia.org/wiki/Multinomial_logistic_regression#Introduction is written, that the estimation errors of separate binomial logit models...

    Started by consuli‎, 02-12-2015 03:08 PM
    • Replies: 0
    • Views: 846
    02-12-2015, 03:08 PM Go to last post
  59. Error question

    Okay, perhaps a silly question. When it is actually appropriate to add a normal error term to an equation that you are about to estimate? Or is...

    Started by ItPaysTheBills‎, 03-25-2013 08:45 PM
    • Replies: 0
    • Views: 1,266
    03-25-2013, 08:45 PM Go to last post
  60. error structure

    Could anyone please clarify what does "error structure distribution" in a regression model exactly refer to? I'm trying to relate "number of...

    Started by najmehjami‎, 06-21-2011 09:51 AM
    • Replies: 0
    • Views: 2,598
    06-21-2011, 09:51 AM Go to last post

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