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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. Errors vs Residuasl in linear regression

    Hello, As far as i know in regression analysis the errors have all the same constant variance. On the other hand the residuals of the sameple that...

    Started by zarasandreas‎, 12-28-2009 03:03 PM
    • Replies: 0
    • Views: 1,874
    12-28-2009, 03:03 PM Go to last post
  2. Esimating detector response from Calculated and Measured values

    Hello all, I have a dataset of soil concentration of a mineral Measured and Calculated. Calculted values are concentration calculated in lab and...

    Started by swagathnavin‎, 09-14-2012 05:37 PM
    • Replies: 1
    • Views: 1,179
    09-16-2012, 12:57 AM Go to last post
  3. Estimate a Logistic Regression Model

    Hi guys, I want to estimate a logistic regression model's equation based on observed data and get the coefficients to extrapolate further. I have...

    Started by Oberon‎, 12-03-2015 08:40 AM
    logistic, regression
    • Replies: 6
    • Views: 2,492
    12-04-2015, 01:18 AM Go to last post
  4. Estimate of Variance

    How does one obtain the best estimate of the variance of observations around the fitted model in SPSS? My thinking is that the best estimate of...

    Started by helppleasestats‎, 05-19-2015 06:36 PM
    fitted model, regression
    • Replies: 0
    • Views: 1,457
    05-19-2015, 06:36 PM Go to last post
  5. Estimate or Contrast Statement in ANOVA

    Hey, I was asked to review a student's paper. In it they have 2 exposures groups and multiple continuous outcomes they are examining. They...

    Started by hlsmith‎, 09-30-2015 09:39 AM
    • Replies: 1
    • Views: 1,402
    09-30-2015, 11:00 AM Go to last post
  6. Estimate Residuals

    Hi statistics experts, I run a usual regression model (1 dependent, different independent variables) for each industry-year and save the residuals...

    Started by M90‎, 01-29-2017 05:31 AM
    • Replies: 2
    • Views: 2,153
    01-29-2017, 12:03 PM Go to last post
  7. Estimate the coefficients of an equation system - can I use OLS?

    Hi! I have not worked so much with this type of regressions and have tried to find the answer in my econometric books and on internet, but have...

    Started by Coffeedrinker‎, 04-22-2014 06:05 PM
    econometrics, equation, ols, regression, time series
    • Replies: 4
    • Views: 1,619
    04-24-2014, 04:18 PM Go to last post
  8. Estimated Variance of R squared

    I'm looking to compare two R squareds using a formula derived from a article called Correlation Redux by Olkin & Finn. This technique doesn't appear...

    Started by trinker‎, 04-21-2011 07:35 PM
    • Replies: 4
    • Views: 7,409
    04-23-2011, 11:50 AM Go to last post
  9. Estimates from a log-linear regression model

    Hello all, I am estimating a economic growth regressions using dynamic panel data. My specification is as folllows: Ln(Y_i,t) = a*Ln(Y_i,t-1)...

    Started by mvanbenthem‎, 06-15-2014 08:18 AM
    dynamic, interpretation, log-linear, panel-data
    • Replies: 0
    • Views: 1,075
    06-15-2014, 08:18 AM Go to last post
  10. Estimates from categorical variables

    Hi everyone, I am doing a multiple regression and try to predict which of my categorical variables (4 levels) has can predict my dependent...

    Started by SteveAlbiniBlues‎, 04-27-2014 10:32 AM
    • Replies: 0
    • Views: 1,082
    04-27-2014, 10:32 AM Go to last post
  11. Estimating 1 cointegrating relationship when trace test indicates rank=2

    Hi all, I am estimating a Vector Error Correction Model for several countries. For one country (call it X), the Johansen trace test suggests that...

    Started by CLP_PS‎, 07-04-2014 10:36 PM
    • Replies: 0
    • Views: 1,237
    07-04-2014, 10:36 PM Go to last post
  12. Estimating Confidence Intevals

    Hi, I have used a loglikelihood function to estimate 24 parameters. How do I construct a confidence interval given the Hessian (avaliated on the...

    Started by celiofeltrinjr‎, 01-15-2014 01:40 PM
    confidence interval, maximum likelihood
    • Replies: 2
    • Views: 1,318
    01-15-2014, 11:50 PM Go to last post
  13. Estimating Covariate Effects on Likert-Scale Response Data

    I am working on a problem where we elicit medical residents perceptions regarding the importance of specific core medical competencies...

    Started by meaneych‎, 07-10-2013 09:53 AM
    applied statistics, generalized linear model, hypothesis testing, likert scale, regresion
    • Replies: 1
    • Views: 1,883
    07-10-2013, 10:05 AM Go to last post
  14. Estimating impact of Predictor

    Hi, I have a simple regression with 24-36 months of data, let's say of Sales which is the dependant variable and % spend on promotions in that...

    Started by confusedguy15‎, 09-22-2017 07:50 AM
    • Replies: 3
    • Views: 137
    09-22-2017, 08:59 AM Go to last post
  15. Estimating the demand function for a product

    Hi everyone! I have around 20 products with 30 monthly observations for each that I need to analyze. I have data on demand, normal price,...

    Started by nils88‎, 07-12-2013 06:02 AM
    discount, price elasticity, regression
    • Replies: 1
    • Views: 1,434
    07-23-2013, 05:40 AM Go to last post
  16. Estimating the error term variance without fitting a regression line

    There's a question in my regression class I'm having trouble with. We are basically given 6 points (5,y1), (5,y2), (10,y3), (10, y4), (15,y5),...

    Started by mn1987‎, 02-05-2013 08:41 PM
    • Replies: 2
    • Views: 2,829
    02-05-2013, 09:12 PM Go to last post
  17. 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...

    Started by MDYK1976‎, 08-16-2016 05:35 PM
    • Replies: 0
    • Views: 746
    08-16-2016, 05:35 PM Go to last post
  18. Estimation - the best factor?

    I need your help if you can. I get some measurement results. If everything work correct results keep close to nominal value: If the...

    Started by darwoz‎, 12-20-2013 02:40 PM
    • Replies: 0
    • Views: 1,747
    12-20-2013, 02:40 PM Go to last post
  19. Estimation method for ratio dependent variable?

    Hi, Logistic regression is used if the dependent variable is a discrete choice variable. My dependent variable is not a discrete choice variable,...

    Started by gabeo‎, 11-10-2010 02:37 AM
    • Replies: 4
    • Views: 11,380
    11-12-2010, 05:30 AM Go to last post
  20. 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...

    Started by kiton‎, 06-25-2016 10:27 AM
    count regressors, panel model
    • Replies: 0
    • Views: 771
    06-25-2016, 10:27 AM Go to last post
  21. Estimation with negative coefficients

    Hi, I have probably an easy problem, however I'm not really sure how to do it: Basically, I would like to estimate a linear regression with OLS. So...

    Started by InGoogleITrust‎, 04-25-2015 04:24 AM
    • Replies: 4
    • Views: 1,287
    04-25-2015, 09:57 AM Go to last post
  22. Evaluating Regression model output with Rsquare

    Please can u comment? I have built a non-linear regression model with 20 independent variables. On a test data, I compared the predicted target...

    Started by viktus‎, 09-06-2012 03:52 PM
    • Replies: 1
    • Views: 2,833
    09-17-2012, 11:24 AM Go to last post
  23. Evaluating regression models help

    I'm new to regression and am needing some assistance in evaluating a model. The relationship I'm trying to obtain is the relationship between credit...

    Started by semidevil‎, 06-10-2016 03:56 PM
    • Replies: 0
    • Views: 858
    06-10-2016, 03:56 PM Go to last post
  24. evaluating statistical difference between model coefficients: 2 different models

    Hello, I have two logistic regression models with the same dependent and independent variables. The only difference between the 2 models is the...

    Started by MarilynCM‎, 02-26-2014 02:23 PM
    census, logistic regression, regression coefficent, statistically significant
    • Replies: 2
    • Views: 1,979
    02-28-2014, 03:29 PM Go to last post
  25. 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...

    Started by Vlajkony‎, 07-15-2016 04:55 AM
    event probabilities, probabilities, regression analysis, transformations
    • Replies: 5
    • Views: 1,602
    07-15-2016, 09:55 PM Go to last post
  26. Event Study where event is correlated with index

    Hello, I am trying to conduct an event study using the traditional market model: StockReturn = Constant + IndexReturn + DummyVariable + Error ...

    Started by rocker‎, 03-25-2013 06:39 AM
    • Replies: 3
    • Views: 1,497
    03-28-2013, 08:54 PM Go to last post
  27. Event Study with illiquid stock prices

    Hello, I am trying to conduct an event study on 250 stocks. Not every stock is liquid and as a result occasionally the price is absent or zero....

    Started by gordo178‎, 05-17-2011 01:22 PM
    • Replies: 0
    • Views: 2,312
    05-17-2011, 01:22 PM Go to last post
  28. 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...

    Started by OlhDt_semarang‎, 09-18-2016 11:44 PM
    • Replies: 0
    • Views: 1,946
    09-18-2016, 11:44 PM Go to last post
  29. Eviews 9 Tutorial Two Stage Least Squares

    Two-stage least squares (TSLS) is a special case of instrumental variables regression. As the name Suggests, there are two distinct stages in the...

    Started by OlhDt_semarang‎, 12-09-2015 08:46 PM
    guide eview 9, tutorial eviews 9
    • Replies: 0
    • Views: 3,791
    12-09-2015, 08:46 PM Go to last post
  30. ex post regression analysis

    So I have 500 different store locations 125 locations are from w brand 200 are from xbrand 100 are from y brand 75 are from z brand each...

    Started by statshelp101‎, 06-14-2015 06:16 AM
    regression analysis
    • Replies: 0
    • Views: 1,050
    06-14-2015, 06:16 AM Go to last post
  31. Thumbs up Exam pass rate analysis

    Hi, looking for some help with some analysis I am looking at on Minitab for exam pass marks. I have a data set which shows global student...

    Started by iannimmo‎, 11-10-2016 11:38 AM
    • Replies: 1
    • Views: 2,164
    11-10-2016, 11:47 AM Go to last post
  32. Exam Question Help

    Hey Guys, After a worked solution for this previous exam question, if that's too much to ask, I understand, could you then point me to some...

    Started by IRK‎, 12-07-2015 02:15 AM
    • Replies: 1
    • Views: 1,350
    12-07-2015, 03:51 AM Go to last post
  33. Examining interaction in an exponential (Poisson) model with standard and robust SE's

    Hello dear forum members! For the purpose of my study I am using an exponential Poisson model with fixed-effects specification. In simple: y =...

    Started by kiton‎, 05-09-2016 10:33 AM
    • Replies: 3
    • Views: 1,979
    05-09-2016, 03:59 PM Go to last post
  34. Excel - is this a reliable data

    Hello I have got a data set that i am using the regression tool on and I just cant clarify to my self if this data if good enough or not. Nr. 1 :...

    Started by hlynur11‎, 05-16-2017 11:03 AM
    • Replies: 1
    • Views: 677
    05-16-2017, 11:51 AM Go to last post
  35. Excel and StatPlus to do Multiple Regression

    Hi all--I would be grateful for any help with this! I am doing my statistics research project on whether or not there is a correlation b/w where...

    Started by Belle‎, 11-29-2012 05:26 PM
    • Replies: 4
    • Views: 9,768
    11-30-2012, 12:39 PM Go to last post
  36. Excel mutliple regression

    I have a made a double regression output in excel 2007 but I don't know how to explain those outputs. Can anyone tell me what does the Regression...

    Started by newbiestats‎, 10-27-2011 07:28 AM
    • Replies: 0
    • Views: 1,560
    10-27-2011, 07:28 AM Go to last post
  37. Excel's t stat question.

    Hi guys, I'm a little confused over this right now. I performed a regression in excel and as an example, this is what i got for my first...

    Started by c2q‎, 11-23-2010 06:14 PM
    • Replies: 3
    • Views: 5,099
    11-23-2010, 06:49 PM Go to last post
  38. Lightbulb Exclude Interaction Term and Include Fixed Effects instead

    Hey everybody. I know I shouldn't exclude the terms of an interaction variable in my regression; however, If I include both terms I have the...

    Started by 5forwards‎, 05-29-2011 08:57 AM
    • Replies: 0
    • Views: 2,586
    05-29-2011, 08:57 AM Go to last post
  39. Exclude intercept in logistic regression?

    I would like some help on the subject whether to include the intercept term or not in a logistic regression. I have read that some people say that...

    Started by jockem‎, 12-20-2011 06:25 AM
    • Replies: 7
    • Views: 21,912
    12-21-2011, 04:00 AM Go to last post
  40. Exp(B) or CI values with the letter "E"

    Dear all, I am running a Multinomial Log. Regression. Everything seems fine but I do not understand when Exp(B) oder CI values are like...

    Started by rezzak‎, 01-26-2017 04:42 AM
    confidence interval, exp(b), logistic regression
    • Replies: 6
    • Views: 3,019
    01-27-2017, 11:42 AM Go to last post
  41. Expectation/ Variance/ ACF and PACF in ARMA(2,1)

    Hello guys, I hope I'm not posting in the wrong subforum. I am looking for a solution to calculate E, Var, and ACF and PACF coefficents in an...

    Started by yoz2k3‎, 06-16-2011 05:04 AM
    • Replies: 1
    • Views: 5,404
    06-17-2011, 08:09 PM Go to last post
  42. Expected Multicollinearity: Alternative to Regression?

    Hello, I currently extracting a lot of slightly different variables from a Social Network dataset, which I want to regress (or something like...

    Started by szidel‎, 01-21-2014 06:17 AM
    • Replies: 10
    • Views: 2,552
    01-21-2014, 11:30 AM Go to last post
  43. Experiment Design Help please

    Hi All I have used a Central Composite Design (CCD) for my experiments, where I have three Factors (A, B, c) and each Factor has five values. I have...

    Started by Dlair‎, 06-21-2015 08:16 AM
    • Replies: 2
    • Views: 1,633
    08-04-2015, 05:15 PM Go to last post
  44. Expert Help Required - Multiple Regression with Nominal and Scale Variables

    Hi all, I'm having huge issues with the assumptions of multiple regression and determining whether I am running my analysis correctly. First of...

    Started by Aegislash‎, 02-27-2017 05:28 AM
    dummy coding, multiple regression, nominal, scale
    • Replies: 4
    • Views: 2,069
    02-27-2017, 01:25 PM Go to last post
  45. Explain the nonsignificance of simple slope analysis (with significant interaction)?

    Hi everyone, I need some help. In a study, I tested an interaction hypothesis and got a significant interaction result (p < .05) and visual...

    Started by lijiesjtu‎, 12-16-2011 08:55 AM
    • Replies: 4
    • Views: 4,471
    08-07-2013, 03:42 PM Go to last post
  46. Explaining cross-sectional variation of betas (PANEL DATA)

    Hi, I am a economics master student and have an upcoming research project. Whilst designing a model for my research, I realized that my...

    Started by littlehippo‎, 08-12-2013 10:51 AM
    • Replies: 0
    • Views: 1,469
    08-12-2013, 10:51 AM Go to last post
  47. Explanatory variable a function of dependent variable

    Hello, Does anyone know the proper terminology for the problem caused by regressing a dependent variable on a set of explanatory variables that...

    Started by anthony19‎, 06-11-2014 04:36 PM
    model checking
    • Replies: 0
    • Views: 2,154
    06-11-2014, 04:36 PM Go to last post
  48. Exponential Regression

    Hey everyone, I'm new to this forum since I came to a roadblock with some studies and looking for some suggestions and help. Attached is a...

    Started by Jess Bryans‎, 11-21-2013 01:22 PM
    • Replies: 0
    • Views: 1,125
    11-21-2013, 01:22 PM Go to last post
  49. Exponential Smoothing and how it Relates to Changing Seasonality Cycle Intervals

    How does exponential smoothing treat seasonality when there are different time intervals to the seasonality. It seems that I have to designate a...

    Started by TollemG‎, 05-23-2017 04:01 PM
    • Replies: 0
    • Views: 605
    05-23-2017, 04:01 PM Go to last post
  50. Exponential Trendline and Equations dont match...

    Hi there I have a graph of output values that I have to plot linear and exponential trendlines on and then show the equations and calculate for...

    Started by Janej‎, 03-11-2011 01:44 PM
    • Replies: 1
    • Views: 2,825
    03-11-2011, 04:02 PM Go to last post
  51. Expressing the sum of squared residuals as a matrix

    R, the n by 1 matrix of residuals, is given by y_i, an n by 1 matrix, minus X, an n by 2 matrix consisting of explanatory variables x_1 and x_2(where...

    Started by lm8ub‎, 06-06-2012 08:03 PM
    • Replies: 2
    • Views: 3,684
    06-09-2012, 09:24 PM Go to last post
  52. Extend economics thesis with multivariate analysis

    Dear all, Working on my Master Thesis I got the remark from my supervisor that I have to extend the research with a multivariate analysis. I have...

    Started by MaartenvK‎, 07-26-2014 06:31 AM
    economics, multiple, multivariate, multivariate analysis, regression analysis
    • Replies: 3
    • Views: 1,995
    07-27-2014, 05:11 AM Go to last post
  53. External dataset validation of a binary logit model

    Hello all, i have developed a prognostic model using binomial logistic regression. Now i want to validate it in an external dataset. The standard...

    Started by Sheetal‎, 12-27-2014 08:30 AM
    logit validation
    • Replies: 1
    • Views: 1,503
    12-27-2014, 08:43 AM Go to last post
  54. Question External Validation

    Hi to all This is probably a stupid question but I do not know how to solve this problem: through multivariate analysis of a sample of patients I...

    Started by vader90‎, 09-16-2012 05:10 AM
    • Replies: 1
    • Views: 1,241
    09-16-2012, 10:47 AM Go to last post
  55. External validation of a log reg model using Nagelkerkes R2 w/ fixed parameters

    I have a dataset containing a point score (an integer between 0-41) and mortality (0/1) for a sample. I have performed a logistic regression...

    Started by ag90‎, 03-30-2017 08:05 AM
    external validation, logistic regression, nagelkerke, rsquared
    • Replies: 0
    • Views: 382
    03-30-2017, 08:05 AM Go to last post
  56. Question Extremely large Odds Ratios?!

    Hi, I've conducted a binary logistic regression with 1 independent variable (Type of property: flat/maisnette, terraced, semi-detached, detached and...

    Started by ljohnston86‎, 08-22-2011 03:17 PM
    logistic regression, odds ratios
    • Replies: 4
    • Views: 12,013
    12-13-2012, 10:19 AM Go to last post
  57. F test and t-test

    Hi guys, I am analyzing some regression results and the p-value for the F-test is large, but at the same time, the t-test for some of the independent...

    Started by boredaxel‎, 10-14-2012 12:20 AM
    • Replies: 2
    • Views: 1,507
    10-15-2012, 09:03 AM Go to last post
  58. F-Statistic Question

    I'm sorry for probably asking a foolish question, but my searches have yielded very limited results (as well as my reading) in regards to the...

    Started by dfrisch‎, 05-28-2008 12:30 PM
    • Replies: 6
    • Views: 25,035
    06-23-2008, 03:28 PM Go to last post
  59. F-test easy doubt

    We have an equation with autocorrelation and we corrected it using Cochrane Orcutt. Now, we are doing a F-test dropping some variables and we don't...

    Started by JesusL‎, 02-20-2014 12:47 PM
    • Replies: 0
    • Views: 937
    02-20-2014, 12:47 PM Go to last post
  60. F-Test for SLR & MLR?

    I am trying to finish a homework problem for a grad level stats class and can't seem to find an answer anywhere to this question written in plain...

    Started by statsisnotmyfriend44‎, 02-09-2015 10:10 PM
    f-test, linear regression, mlr, slr
    • Replies: 1
    • Views: 1,825
    02-10-2015, 02:09 AM Go to last post

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