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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. 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...

    Started by johnstatistic‎, 09-23-2016 08:54 AM
    missing values, regression model
    • Replies: 1
    • Views: 119
    Yesterday, 07:53 PM Go to last post
  2. Not significant coefficients in Logit, but in Probit they are

    Hello, I would like to ask you for a help. I have a simple model with one explanatory variable and with a binary dependend variable. Explanatory...

    Started by tradermartin‎, 09-24-2016 02:48 AM
    • Replies: 5
    • Views: 170
    Yesterday, 05:40 PM Go to last post
  3. 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...

    Started by sff.cardoso‎, 09-21-2016 02:07 PM
    anova, gls, regression analysis
    • Replies: 5
    • Views: 147
    09-22-2016, 01:07 PM Go to last post
  4. 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: 110
    09-18-2016, 11:44 PM Go to last post
  5. 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...

    Started by verylost‎, 09-17-2016 06:50 AM
    • Replies: 3
    • Views: 166
    09-17-2016, 12:10 PM Go to last post
  6. Exclamation Multivariate models - standard error help

    I have 2 multivariate models created in R concerning nutrition Model 1 = -11.51.68 + 0.560.562 Intake + 16.60.165 Potassium concentration ...

    Started by Ireeland‎, 09-16-2016 06:14 AM
    model, multivariate, standard error
    • Replies: 0
    • Views: 106
    09-16-2016, 06:14 AM Go to last post
  7. Logistic Regression of Weekly NFL Data

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

    Started by LeeBalto‎, 09-14-2016 06:46 AM
    regression
    • Replies: 1
    • Views: 135
    09-14-2016, 09:38 AM Go to last post
  8. 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...

    Started by timsad‎, 09-11-2016 08:19 AM
    • Replies: 0
    • Views: 119
    09-11-2016, 08:19 AM Go to last post
  9. 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....

    Started by Cupcaker‎, 09-10-2016 07:01 AM
    • Replies: 1
    • Views: 145
    09-11-2016, 07:42 AM Go to last post
  10. 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 ...

    Started by permaximum‎, 09-09-2016 10:26 AM
    • Replies: 6
    • Views: 200
    09-09-2016, 03:09 PM Go to last post
  11. 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...

    Started by Masimo‎, 09-09-2016 05:52 AM
    • Replies: 0
    • Views: 113
    09-09-2016, 05:52 AM Go to last post
  12. 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...

    Started by chro‎, 09-07-2016 12:40 PM
    • Replies: 2
    • Views: 131
    09-07-2016, 02:26 PM Go to last post
  13. 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...

    Started by gliomanerd‎, 09-01-2016 10:35 AM
    categorial analysis, multiple regression
    • Replies: 4
    • Views: 282
    09-05-2016, 07:16 PM Go to last post
  14. 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...

    Started by Julie26‎, 09-03-2016 06:24 PM
    • Replies: 5
    • Views: 261
    09-05-2016, 09:16 AM Go to last post
  15. 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....

    Started by ting01‎, 08-20-2016 10:41 AM
    • Replies: 9
    • Views: 412
    09-03-2016, 03:05 AM Go to last post
  16. 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. ...

    Started by zayfran31189‎, 09-02-2016 03:47 AM
    • Replies: 1
    • Views: 123
    09-02-2016, 04:39 PM Go to last post
  17. 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...

    Started by geoskimoto‎, 09-02-2016 12:13 PM
    anova, help me, help needed, linear regression, model
    • Replies: 0
    • Views: 122
    09-02-2016, 12:13 PM Go to last post
  18. 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...

    Started by BioLion‎, 09-01-2016 04:44 AM
    degrees of freedom, dof, model
    • Replies: 0
    • Views: 91
    09-01-2016, 04:44 AM Go to last post
  19. 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) ***

    Started by zayfran31189‎, 08-31-2016 07:48 AM
    • Replies: 1
    • Views: 148
    08-31-2016, 10:17 PM Go to last post
  20. Question 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...

    Started by phoela‎, 08-31-2016 05:14 AM
    • Replies: 2
    • Views: 108
    08-31-2016, 06:17 AM Go to last post
  21. Regression with data from different sources: Nested fixed effects possible?

    Assume I have collected my data with 3 different methods, each method share the same outcome Y as well as the predictor X. I am interested in the...

    Started by mmercker‎, 08-25-2016 11:42 AM
    • Replies: 2
    • Views: 185
    08-30-2016, 08:24 PM Go to last post
  22. SST = SSE + SSR, proof

    Hi, I've been trying to figure out for a long time how to derive the starting equation of the proof. I have no idea how to come up with it. It's...

    Started by stephen123456‎, 08-27-2016 04:25 PM
    • Replies: 2
    • Views: 262
    08-29-2016, 10:39 AM Go to last post
  23. 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...

    Started by Steinberg‎, 08-24-2016 03:36 AM
    fit, glm, ols, transforming
    • Replies: 8
    • Views: 278
    08-29-2016, 06:28 AM Go to last post
  24. Question 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...

    Started by Maha1987‎, 08-29-2016 06:22 AM
    aic, bic, genlinmixed, mixed logit
    • Replies: 0
    • Views: 97
    08-29-2016, 06:22 AM Go to last post
  25. 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...

    Started by zakqux93‎, 08-28-2016 03:07 PM
    • Replies: 2
    • Views: 170
    08-28-2016, 03:31 PM Go to last post
  26. Question 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...

    Started by Rutra1992‎, 08-28-2016 04:42 AM
    r-squard, replicating portfolios, standard error of weights
    • Replies: 0
    • Views: 139
    08-28-2016, 04:42 AM Go to last post
  27. Lightbulb 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...

    Started by Smith_83‎, 08-26-2016 11:37 AM
    regression
    • Replies: 1
    • Views: 199
    08-26-2016, 01:20 PM Go to last post
  28. Forecasting, what method to use

    I am stuck on what statistical analysis method I can use to forecast using past data. This is for a Hotel that has been open for four months, I...

    Started by Lukejames‎, 08-26-2016 07:56 AM
    • Replies: 1
    • Views: 146
    08-26-2016, 08:53 AM Go to last post
  29. 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...

    Started by StatsN00bie‎, 08-15-2016 06:21 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 383
    08-25-2016, 01:10 AM Go to last post
  30. 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...

    Started by lo2‎, 08-14-2016 05:11 AM
    • Replies: 4
    • Views: 251
    08-24-2016, 10:38 AM Go to last post
  31. 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...

    Started by Epy‎, 08-24-2016 12:21 AM
    • Replies: 2
    • Views: 164
    08-24-2016, 04:21 AM Go to last post
  32. 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...

    Started by Meloyn‎, 08-24-2016 04:00 AM
    adf, schwert, var
    • Replies: 0
    • Views: 99
    08-24-2016, 04:00 AM Go to last post
  33. 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...

    Started by shardman‎, 08-20-2016 04:35 AM
    • Replies: 6
    • Views: 282
    08-23-2016, 04:57 AM Go to last post
  34. AMOS OUTPUT - Interpreting results for moderation

    Hello! Please some one help me interpret and put in writing the results (attached as images) from AMOS for moderation analysis. Please I need...

    Started by Zainab‎, 08-20-2016 02:47 AM
    • Replies: 1
    • Views: 177
    08-22-2016, 06:52 PM Go to last post
  35. 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...

    Started by Strider‎, 08-20-2016 07:39 PM
    • Replies: 1
    • Views: 153
    08-20-2016, 08:58 PM Go to last post
  36. How to interpret the Line Graph

    Hello! Please if someone help in writing what this line graph means. Thank You.

    Started by Zainab‎, 08-20-2016 01:32 PM
    • Replies: 2
    • Views: 161
    08-20-2016, 04:52 PM Go to last post
  37. 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,...

    Started by AlexeyS‎, 08-20-2016 12:59 AM
    dummy variables, linear regression, no intercept
    • Replies: 1
    • Views: 141
    08-20-2016, 06:13 AM Go to last post
  38. transformation on variables

    I run simple linear regression, and saw that my residuals not distributed normally. my dependent variable histogram was as log-normal, i did a...

    Started by AlexeyS‎, 08-20-2016 01:41 AM
    • Replies: 0
    • Views: 87
    08-20-2016, 01:41 AM Go to last post
  39. Detecting fake results

    Hello everyone, I am currently working together with a fellow student on analyzing what factors affect profitability in banking, by using a...

    Started by Eina‎, 08-19-2016 12:07 PM
    • Replies: 5
    • Views: 186
    08-19-2016, 03:40 PM Go to last post
  40. 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...

    Started by mmercker‎, 08-19-2016 11:51 AM
    biology, machine learning, model averaging, regression analysis
    • Replies: 2
    • Views: 101
    08-19-2016, 01:28 PM Go to last post
  41. 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...

    Started by dnh‎, 08-19-2016 05:25 AM
    • Replies: 0
    • Views: 76
    08-19-2016, 05:25 AM Go to last post
  42. 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...

    Started by statsgirl123‎, 08-17-2016 02:17 PM
    forecasting, regression, standard error
    • Replies: 1
    • Views: 201
    08-17-2016, 10:32 PM Go to last post
  43. 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...

    Started by sonicbill11‎, 08-17-2016 08:17 AM
    • Replies: 1
    • Views: 156
    08-17-2016, 01:51 PM Go to last post
  44. Lightbulb 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...

    Started by Subhan Ahmad‎, 08-17-2016 12:59 PM
    asset pricing model, fama macbeth regression, regression coefficent
    • Replies: 0
    • Views: 117
    08-17-2016, 12:59 PM Go to last post
  45. 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: 98
    08-16-2016, 05:35 PM Go to last post
  46. 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...

    Started by tophbeifong‎, 08-16-2016 11:07 AM
    • Replies: 2
    • Views: 146
    08-16-2016, 11:55 AM Go to last post
  47. 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...

    Started by floriisco‎, 08-15-2016 12:48 PM
    interaction effect, interactive terms
    • Replies: 4
    • Views: 185
    08-15-2016, 01:13 PM Go to last post
  48. 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...

    Started by Perilun‎, 08-14-2016 03:40 PM
    • Replies: 3
    • Views: 223
    08-15-2016, 07:25 AM Go to last post
  49. Post A priori Power Analysis

    Hey Guys, I am a newbie and have a question on power analysis. I would like to measure the effect of an intervention on various measures and...

    Started by floriisco‎, 08-13-2016 11:02 AM
    hypothesis testing, lmr, power analysis
    • Replies: 2
    • Views: 251
    08-15-2016, 04:10 AM Go to last post
  50. Beta Regression Resources?

    Does anyone have some good resources for Beta Regression related to all of its parts: -assumptions -diagnostic (residuals) ...

    Started by hlsmith‎, 08-10-2016 04:04 PM
    beta regression, lemon squeezer
    • Replies: 8
    • Views: 401
    08-13-2016, 01:41 PM Go to last post
  51. how to explian the insig. main effect without sig. coefficient of interaction?

    I am doing the research using the panel data. My confusions follow. Y=x1+x2: X1 sig, but X2 insig. however, when interaction is put into the model...

    Started by davidxu‎, 07-28-2016 01:40 AM
    • Replies: 3
    • Views: 401
    08-08-2016, 10:49 PM Go to last post
  52. Binary logistic regression

    Hi there i ran logistic regression and got the following model: var1: B = -5.670 Sig = 0.01 Exp (B) 0.003 Constant: B = -0.469

    Started by kasperski‎, 08-02-2016 11:54 AM
    • Replies: 13
    • Views: 466
    08-08-2016, 11:38 AM Go to last post
  53. Proof

    Hello! I've read a textbook with the following expression. "y = beta 0 + beta 1 * lnx + u" and it claimed that end up: delta y = beta 1 * ((delta...

    Started by BatmanForever‎, 08-08-2016 05:30 AM
    • Replies: 1
    • Views: 217
    08-08-2016, 09:31 AM Go to last post
  54. comparing extremes of an independent variable

    Dear all, I have been cracking my head for 2 weeks but i havent been able to figure out this, so i decided to ask for help. I have done a...

    Started by niccolo‎, 08-04-2016 03:54 AM
    • Replies: 10
    • Views: 359
    08-04-2016, 07:18 PM Go to last post
  55. Determining Classification accuracy of a Multinomial Logistic Regression using R nnet

    Hi, I am trying to assess the classification accuracy for a Multinomial Logistic Regression model using R. I have adapted the example below to my...

    Started by cometorta‎, 08-03-2016 04:50 PM
    false positives mlr
    • Replies: 1
    • Views: 179
    08-03-2016, 09:50 PM Go to last post
  56. Determining residual outliers when heteroskedasticity exists

    Hi, I was wondering if anyone has any thoughts on the best way to approach the detection of outliers based on residuals from a linear regression...

    Started by talkbox‎, 08-03-2016 07:13 AM
    regression
    • Replies: 3
    • Views: 181
    08-03-2016, 01:46 PM Go to last post
  57. Need Help with developing general linear mixed model regression equation

    I'll be moving this to another thread and don't want to create multiple versions. Thanks!

    Started by Laide‎, 08-03-2016 12:13 PM
    applied statistics, finance, healthcare, regression
    • Replies: 0
    • Views: 142
    08-03-2016, 12:13 PM Go to last post
  58. Model equation Binary probit model

    Hi, the model equation for a binary probit model looks like that: Prob(Y=1|X) = Φ(Xβ) I just want to know if my vector X includes covariates...

    Started by xs0982‎, 08-03-2016 06:44 AM
    • Replies: 1
    • Views: 142
    08-03-2016, 10:49 AM Go to last post
  59. Difference between a VAR and a VECM

    Hello, I am performing cointegration analysis using Eviews and the DOLS estimator in the cointegrating equation. After saving the residuals of...

    Started by Reynaldo2007‎, 08-02-2016 09:55 PM
    econometrics, var, vecm
    • Replies: 0
    • Views: 212
    08-02-2016, 09:55 PM Go to last post
  60. Regularized Regression

    When is L1, L2 or e-net preferred when analyzing data? It can't all be based on cross-validation?

    Started by hlsmith‎, 08-02-2016 10:49 AM
    • Replies: 0
    • Views: 127
    08-02-2016, 10:49 AM Go to last post

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