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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. interpreting interaction results in ols regression

    Dear all, I am trying to examine the association between household wealth and expenditure on education of children aged 11-17 and 5-10 in a...

    Started by anika13‎, 12-29-2015 12:45 PM
    • Replies: 1
    • Views: 727
    12-29-2015, 04:28 PM Go to last post
  2. Query: Using independent variables in regression.

    1. When putting in independent variables in regression model, for example "income" and my outcome is health status. I can use income as categorical...

    Started by Tilipa‎, 12-28-2015 07:20 PM
    regression analysis
    • Replies: 4
    • Views: 738
    12-29-2015, 02:07 PM Go to last post
  3. Post ANOVA multi-variable problem

    If there is a dependent variable depending on 5 independent variables or factors, how to find the relative effect of these 5 groups on dependent...

    Started by prasun samir‎, 12-24-2015 09:12 PM
    • Replies: 3
    • Views: 900
    12-26-2015, 09:40 PM Go to last post
  4. Linear regression and dichotomous variable

    Hello I would like to do a linear regression (stepwise), and one of the variables I want to enter is sick/ not sick. The other variables are from...

    Started by talgef‎, 12-22-2015 04:43 AM
    • Replies: 1
    • Views: 626
    12-22-2015, 07:14 AM Go to last post
  5. Percentage change of dependent variable (MLR)

    Greetings, I went through SPSS regression analysis of a certain dataset, tested assumptions, and finally I got a multiple regression model:...

    Started by bellcross‎, 12-20-2015 09:13 AM
    • Replies: 3
    • Views: 3,163
    12-21-2015, 03:34 PM Go to last post
  6. The assumptions of multiple regression: An article by TalkStatters!

    Hi everyone, A lot of you are aware of this already, but I'm posting this to a public subforum on Quark's suggestion :) Recently a group of 3...

    Started by CowboyBear‎, 09-10-2013 10:31 PM
    • Replies: 3
    • Views: 70,859
    12-21-2015, 02:02 PM Go to last post
  7. adding skewness and kurtosis to CAPM - regression

    Suppose I have a set of monthly returns of a stock, monthly 'market' returns and some risk free rate for lets say 10 years. Performing an usually OLS...

    Started by Deusdeorum‎, 07-21-2015 03:55 AM
    capm, regression analysis
    • Replies: 1
    • Views: 3,055
    12-18-2015, 07:26 PM Go to last post
  8. Logistic Regression

    I am looking at a medical outcome (binary) and known risk factors. There are 10 established risk factors that I will test in my sample of 300...

    Started by hlsmith‎, 12-18-2015 09:28 AM
    • Replies: 4
    • Views: 867
    12-18-2015, 10:04 AM Go to last post
  9. Commonality analyses/structure coefficients/relative importance

    Dear members: I am conducing a 2-way moderation and I would like to determine the meaningful implications of each of my predictors (IV, Moderator,...

    Started by Elena_Iva‎, 12-17-2015 09:34 PM
    • Replies: 0
    • Views: 484
    12-17-2015, 09:34 PM Go to last post
  10. Nominal predictor with 70 levels....

    I have a nominal level predictor with 70 levels (its units that provide some service). I want to analyze how these units preform on an interval...

    Started by noetsi‎, 12-08-2015 03:13 PM
    qq-plot
    • Replies: 9
    • Views: 1,231
    12-16-2015, 01:44 PM Go to last post
  11. Control variable for panel analysis

    i am writing a paper analyzing What is the effect of corruption on Government expenditure (education,health,military and infrastructure). I have data...

    Started by arni‎, 12-16-2015 06:55 AM
    variable
    • Replies: 0
    • Views: 436
    12-16-2015, 06:55 AM Go to last post
  12. Tjur's pseuo R squared

    Paul Allison recommends this now for logistic regression, but I have never run across it (it has not been formally named this, Tjur is the author who...

    Started by noetsi‎, 12-15-2015 03:39 PM
    • Replies: 4
    • Views: 914
    12-15-2015, 09:05 PM Go to last post
  13. Logistic regression: Development of a hypothesis question

    Logistic regression: Development of a hypothesis question Hello guys, I am working on my master thesis right now. I am examining...

    Started by maxime39‎, 12-14-2015 09:18 AM
    • Replies: 2
    • Views: 523
    12-15-2015, 12:39 PM Go to last post
  14. AIC for evaluating transformations

    I was just reading an article that seemed to say they used AIC to evaluate continuous variable transformations, I guess in a logistic model. I am...

    Started by hlsmith‎, 12-04-2015 10:13 PM
    • Replies: 1
    • Views: 586
    12-15-2015, 09:39 AM Go to last post
  15. New to statistics and Binary Logistics Regression

    Dear Fellows! In search of help just found this forum and I hope there would be anyone who will help me. I am doing the Binary Logistic...

    Started by Usman Abdullah‎, 12-12-2015 12:36 AM
    • Replies: 3
    • Views: 847
    12-12-2015, 05:53 PM Go to last post
  16. What does intercept mean in regression analysis?

    I have searched it on the web but I just cant understand it. To better understand it I did one example my self. Can somebody explain me this? >...

    Started by Mr Good News‎, 12-10-2015 02:53 AM
    • Replies: 3
    • Views: 1,058
    12-12-2015, 11:59 AM Go to last post
  17. Multi variable Regression

    Dear Regression Experts, I am new in this field, I have set of data of about 1 lac entries having a total of 10 variables of which 9 are input...

    Started by wali‎, 12-10-2015 07:27 AM
    • Replies: 4
    • Views: 911
    12-12-2015, 01:34 AM Go to last post
  18. Calculate estimated median survival time (by hand)

    So I have some SAS code: proc lifereg data=surv_data; model event_time * censor(1) = var1 var2 var3 / distribution=weibull; output...

    Started by lancearmstrong1313‎, 12-10-2015 01:06 PM
    • Replies: 5
    • Views: 860
    12-11-2015, 01:05 PM Go to last post
  19. Tutorial Tobit Eviews 9

    The tobit models, Also called a censored regression models (Tutorial Tobit Eviews 9) (Guide Tobit Eviews 9) (Regression Tobit Eview 9), is designed...

    Started by OlhDt_semarang‎, 12-11-2015 12:53 AM
    (tutorial tobit eviews 9, guide tobit eviews 9, regression tobit eview 9
    • Replies: 0
    • Views: 1,798
    12-11-2015, 12:53 AM Go to last post
  20. 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: 1,273
    12-09-2015, 08:46 PM Go to last post
  21. Ordered Logistic Regression - proportional odds

    Hey, for a homework paper I have analyze some data. Its about how social networks are related to health. My depended var is an ordinal variable...

    Started by Hansbusch‎, 12-07-2015 07:42 AM
    • Replies: 0
    • Views: 754
    12-07-2015, 07:42 AM Go to last post
  22. 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: 559
    12-07-2015, 03:51 AM Go to last post
  23. Regression analysis with multicollinearity

    I am using jmp software for analysis... I am looking at prognostic factors that influence survival of patients with a specific type of cancer. ...

    Started by yellowsubmarine_7‎, 12-06-2015 04:55 PM
    regression analysis
    • Replies: 1
    • Views: 511
    12-06-2015, 06:05 PM Go to last post
  24. Compute and interpretation of logarithmic dependent variable

    Hello everyone, For a paper I am using a model from another paper. However, I have some difficulties determining how I should generate this...

    Started by Jantje Beton‎, 12-06-2015 01:16 PM
    • Replies: 0
    • Views: 435
    12-06-2015, 01:16 PM Go to last post
  25. Interpretation of the squared term coefficient in the presence of interaction

    Hello dear form members, Please consider the following regression model: y = a + b1x1 + b2x1^2 + b3x2 + b4x1*x2 + e, Note that x1 is (1)...

    Started by kiton‎, 11-11-2015 04:09 PM
    • Replies: 6
    • Views: 1,047
    12-06-2015, 11:03 AM Go to last post
  26. Rare suppressor effect?

    Hey, I recently discovered a somewhat surprising result in a hierarchical regression: I have three predictors (C M N) and one outcome (D). ...

    Started by asbjorng‎, 03-18-2014 03:40 AM
    • Replies: 2
    • Views: 853
    12-06-2015, 06:45 AM Go to last post
  27. Applying multiple regression results to new data SPSS

    My study involves testing infants at multiple time points using a number of behavioural tests. I used a multiple regression to establish which...

    Started by rdavis09‎, 12-05-2015 10:05 AM
    • Replies: 3
    • Views: 838
    12-06-2015, 04:17 AM Go to last post
  28. Integrating a continuous predictor in multiple logistic regression?

    Hi everyone, I was wondering if you could help tell me if this would be possible. I'm doing a health research project were I am using a lot of...

    Started by derivativegradient‎, 12-05-2015 10:55 PM
    • Replies: 1
    • Views: 496
    12-06-2015, 03:50 AM Go to last post
  29. 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: 1,189
    12-04-2015, 01:18 AM Go to last post
  30. Specifying the correct model in Oxmetrics

    I have an equation: Y = c + b1X1 + b2X2 + b3X3 Y = Cryptographic ability (scaled 0-200) X1 = Pattern recognition skills (scaled 0-20) X2 =...

    Started by TimeMachine‎, 12-03-2015 12:43 AM
    • Replies: 0
    • Views: 489
    12-03-2015, 12:43 AM Go to last post
  31. Hypothesis test on number of votes accidentially given to Buchanan

    Hey :wave: I have the following task: Estimate the number of votes, denoted v, in Palm Beach that are accidentially given to Buchanan by...

    Started by Hopeless‎, 12-01-2015 03:43 AM
    • Replies: 0
    • Views: 612
    12-01-2015, 03:43 AM Go to last post
  32. statistical robustness analysis in minitab

    Hello! I was asked to comment on statistical robustness analysis in minitab, but honestly I don't know much about it. Can anyone help me...

    Started by kaczka03‎, 11-29-2015 04:11 PM
    • Replies: 0
    • Views: 645
    11-29-2015, 04:11 PM Go to last post
  33. Logit:why aren't my exponentiated coefficients equaling my odds ratio (for nominal x)

    I'm running logit in JMP. My understanding is that if you exponentiate the coefficients, you get the change in odds ratios from a 1 unit change in X....

    Started by Chriscic‎, 11-28-2015 11:06 AM
    • Replies: 3
    • Views: 900
    11-28-2015, 10:18 PM Go to last post
  34. cross-validated AUC

    Hello All, I hope the thread's title makes sense to you. I need to perform internal Cross-Validation using k-fold CV (needless to say, to assess how...

    Started by gianmarco‎, 11-25-2015 02:42 AM
    • Replies: 10
    • Views: 1,279
    11-27-2015, 03:32 PM Go to last post
  35. [Logistic regression: Stepwise] Why does the model keep a non-significant predictor?

    Hello there, I'm running a logistic regression with four independent variables. I use the Stepwise: Backwards LR method for the regression. ...

    Started by MelinJD‎, 11-24-2015 11:01 AM
    • Replies: 2
    • Views: 755
    11-27-2015, 03:56 AM Go to last post
  36. Comparing AIC between OLS and Quantile regression

    Hello all, Is it acceptable to compare the AIC of an OLS linear model to the AIC of a quantile linear model to see which is the better fit? I...

    Started by Frost_Maggot‎, 11-26-2015 12:10 PM
    • Replies: 0
    • Views: 508
    11-26-2015, 12:10 PM Go to last post
  37. Linear regression - help with meeting/avoiding the assumptions

    Hello all! I am tasked with fitting a linear model with one dependent variable y and one independent variable x. I am using R for the analysis....

    Started by Frost_Maggot‎, 11-25-2015 05:07 PM
    • Replies: 2
    • Views: 693
    11-25-2015, 05:20 PM Go to last post
  38. Question Ranking a Location using Linear Regression

    Hi, I am facing a strange problem with a software patented in the USA. It is a location evaluation software, which offers insights on determining...

    Started by Confidential‎, 11-22-2015 06:23 AM
    • Replies: 6
    • Views: 1,159
    11-24-2015, 09:32 AM Go to last post
  39. Variable Analysis

    I'm new to using regression and was curious how most of you go about creating a tightly fit model. I've always tried to get all my variables under a...

    Started by trampledunderfoot‎, 11-23-2015 11:35 PM
    • Replies: 1
    • Views: 551
    11-24-2015, 07:34 AM Go to last post
  40. ANCOVA - can I delete a very significant variable from a model's equation?

    Hi all, I undertook a sensitivity analysis to study the contribution of explanatory variables to soil organic carbon variations. Here, the...

    Started by CGG‎, 11-22-2015 05:38 PM
    ancova, variable in model
    • Replies: 5
    • Views: 779
    11-24-2015, 07:30 AM Go to last post
  41. Multiple linear regression using moderators

    Hi guys, first post here! First some background information: I am doing a study that examines whether patents and trademarks (2 independent...

    Started by Inter‎, 11-23-2015 11:40 AM
    • Replies: 0
    • Views: 704
    11-23-2015, 11:40 AM Go to last post
  42. Instrumental variable approach to a model with squared and interaction terms

    Moderator, please delete this post.

    Started by kiton‎, 11-22-2015 04:50 PM
    endogeneity, instruments, least squares regression
    • Replies: 0
    • Views: 434
    11-22-2015, 04:50 PM Go to last post
  43. Degree of Freedom in extra sum of squares

    Give the degrees of freedom associated with a)SSR(X_1|X_2) b)SSR(X_2|X_1,X_3) c)SSR(X_1,X_2|X_3,X_4) d)SSR(X_1,X_2,X_3|X_4,X_5)

    Started by askazy‎, 11-21-2015 12:29 PM
    • Replies: 0
    • Views: 584
    11-21-2015, 12:29 PM Go to last post
  44. Regression analysis in MS Excel

    I have a very simple model, in which Y is the average of three variables (A, B and C). Now I would like to know how much of the variance in Y is...

    Started by Stat789‎, 11-21-2015 10:25 AM
    • Replies: 0
    • Views: 502
    11-21-2015, 10:25 AM Go to last post
  45. [Logistic Regression] - Is it possible to compare the outcomes?

    Dear all, First time poster here. I'm currently working on my thesis and i'm stuck with a complex matter which i hope you guys can help me with. I...

    Started by Tway‎, 11-19-2015 03:47 PM
    logistic regression
    • Replies: 1
    • Views: 676
    11-21-2015, 02:55 AM Go to last post
  46. Implement Young's Information Criterion in Matlab for analyzing recursive arx models

    Hey For an assignment we want to implement the YIC instead of Aikake's information criterion because it's more suitable to fit our data. We have...

    Started by Alex40014‎, 11-20-2015 04:24 AM
    • Replies: 0
    • Views: 730
    11-20-2015, 04:24 AM Go to last post
  47. regression on age groups

    Dear All, I have the following question: Estimate a simple regression model of ‘libertarian-authoritarian’ attitude as a function of age groups...

    Started by sugabird22‎, 11-17-2015 08:55 AM
    age, group, regression
    • Replies: 5
    • Views: 1,817
    11-17-2015, 06:37 PM Go to last post
  48. Will Cochrane-Orcutt process remedy heteroskedasticity? Using GRETL

    I tried searching for this in the forums but cant seem to find anything. I'm probably just wording it wrong. I'm working on a research project for...

    Started by NorCalLove‎, 11-17-2015 12:19 AM
    • Replies: 1
    • Views: 512
    11-17-2015, 05:44 AM Go to last post
  49. Post Model to use, fractions as independent and dependent variables

    Hi, I have some background on doing regression analysis, however never on fractional variables. My question is related to model selection on...

    Started by ddali‎, 11-14-2015 10:13 AM
    fraction, regression analysis
    • Replies: 1
    • Views: 912
    11-14-2015, 04:36 PM Go to last post
  50. Which R-Package / function is appropriate? fixed variance, random coefficients and AR

    Hi, I have time-dependent data which show an inreasing variance with a certain covariate X (which can be modelled using a fixed cariance...

    Started by mmercker‎, 11-14-2015 03:20 AM
    autoregression, fixed variance, regression analysis
    • Replies: 0
    • Views: 553
    11-14-2015, 03:20 AM Go to last post
  51. Residual Plots. What's going on.

    I'm running some analysis on grades in different subjects and seeing if being involved in this outside activity has an impact on grades. I am looking...

    Started by econh‎, 11-13-2015 10:07 PM
    • Replies: 1
    • Views: 590
    11-13-2015, 10:29 PM Go to last post
  52. Regression with Differential equations (ODEs / PDEs)

    Hi, in the field of mathematical modelling of biological or physical processes, most of them cannot be described by simple (linear or nonlinear)...

    Started by mmercker‎, 11-12-2015 07:18 AM
    differential equation, ode, pde, regression
    • Replies: 0
    • Views: 511
    11-12-2015, 07:18 AM Go to last post
  53. 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...

    Started by PYork‎, 11-09-2015 09:13 AM
    regression, variance
    • Replies: 1
    • Views: 976
    11-09-2015, 12:41 PM Go to last post
  54. Increasing variables decreases DFs?

    I'm sorry if this is a total noob question, but I cannot figure it out. When I'm adding variables into my regression into STATA, the degrees of...

    Started by sociologydude76‎, 11-07-2015 02:47 PM
    degrees of freedom, regression, stata
    • Replies: 2
    • Views: 665
    11-08-2015, 09:46 AM Go to last post
  55. GEE: best model by comparing residuals (SPSS)

    Hello there, I am doing a study on vigilance research by comparing different EEG methods (ERP, FFT and ERD) regarding their predictive power of...

    Started by FrankD‎, 11-07-2015 08:33 AM
    • Replies: 0
    • Views: 655
    11-07-2015, 08:33 AM Go to last post
  56. regression analysis for research

    hi there, working on a project in which we compare eye contrast among mammals at various points. We collected data (luminance value) for parts...

    Started by kelseyjo‎, 11-06-2015 08:20 PM
    • Replies: 0
    • Views: 530
    11-06-2015, 08:20 PM Go to last post
  57. Can you help me identify the right test for my data?

    I’m trying to identify the right statistical method to use. Here’s a case analogous to mine: Let’s say I’m interested in whether basketball team...

    Started by Frameshift‎, 11-06-2015 06:19 PM
    • Replies: 0
    • Views: 549
    11-06-2015, 06:19 PM Go to last post
  58. Adding main effects when main effects model is insignificant

    Hi, I have a linear model where both main effects are insignificant, and an overall insignificant model. Should I stop just stop there, or can I...

    Started by bryantw‎, 11-05-2015 05:57 PM
    • Replies: 1
    • Views: 512
    11-05-2015, 07:31 PM Go to last post
  59. Factor scores or mean values?

    Dear all, I hope I am in the correct forum and you can help me. At the moment I pursue a survey study. In the survey I obtain items that shall...

    Started by Ute1985‎, 11-05-2015 05:42 AM
    • Replies: 0
    • Views: 470
    11-05-2015, 05:42 AM Go to last post
  60. Question related to Generalized Linear Mixed Model

    I'm working with a dataset containing the following: Fixed variables: Age, Body Size, Antler Size, Average Age Random variable: Animal ID...

    Started by Sightfish‎, 11-04-2015 12:18 PM
    • Replies: 2
    • Views: 677
    11-04-2015, 10:55 PM Go to last post

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