1. Announcement:
    Want access to a chatbox?
    Dason ‎(Devorador de queso)
    05-10-2017
    Views:
    1,894
+ Post New Thread
Page 51 of 73 FirstFirst ... 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 ... LastLast
Threads 3001 to 3060 of 4339

Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. How to antilog a regression

    Hi, My excel regression produced the following: Coefficient Constant 6.5804 Log(Unit_Produced) -0.4752 The...

    Started by pcampin‎, 12-10-2011 11:21 AM
    • Replies: 4
    • Views: 9,891
    12-11-2011, 05:12 PM Go to last post
  2. Multiple regression - text dropped an independent variable without explanation

    Hi, My text provided many independent variables including 4 departments. But in the actual regression, they excluded one department without...

    Started by pcampin‎, 12-10-2011 11:34 AM
    • Replies: 2
    • Views: 1,368
    12-10-2011, 05:14 PM Go to last post
  3. Polynomial Regression

    Hi, Could you please tell me why it is common to square the independent variables. I ask because I made a scatter plot of the squared data and...

    Started by pcampin‎, 01-02-2012 11:40 AM
    • Replies: 2
    • Views: 2,483
    01-02-2012, 12:26 PM Go to last post
  4. Polynomial regression...how to solve a complex quadratic equation

    Hi, The regression in question is: y= 216.44 -109.37X + 25.969 X^2 - 1.7699 X^3 where y = strength of strand board and X = amount of glue used...

    Started by pcampin‎, 01-02-2012 01:26 PM
    • Replies: 1
    • Views: 4,756
    01-02-2012, 01:30 PM Go to last post
  5. Simple Regression - Prediction Interval

    Hi, My text describes a prediction interval as being a t-distribution with n-2 d.o.f. In the chapter end questions, I see that they used 1.96...

    Started by pcampin‎, 01-03-2012 12:10 PM
    • Replies: 2
    • Views: 1,722
    01-03-2012, 03:58 PM Go to last post
  6. Binary mult. regression - Interpreting a coefficient

    Hi, I have a regression model (from publisher solution) as follows: Coefficient Regression Table Constant -29470.27 Size 78.429 Number...

    Started by pcampin‎, 01-03-2014 12:09 PM
    • Replies: 3
    • Views: 1,752
    01-04-2014, 11:40 AM Go to last post
  7. Quasipoisson rregression interpretation

    Hi, I am trying to do a quasipoisson regression to know if the frequency of drinking of my subject is related to temperature. The problem is that...

    Started by pchret‎, 09-15-2012 12:57 PM
    • Replies: 1
    • Views: 1,910
    09-15-2012, 06:12 PM Go to last post
  8. [SOLVED] Logistic Regression - Confidence Intervals

    Hi I'm running a logistig regression in SPSS 16.0 and have come across the following issue: when testing for different confidence intervals (95%,...

    Started by pcruz‎, 01-09-2012 10:20 AM
    • Replies: 3
    • Views: 2,090
    01-10-2012, 12:27 PM Go to last post
  9. SPSS Logistic Regression Predicts Too Many Negatives?

    Hello everybody, I have a logistic regression model, where the outcome Yes is coded as 1, No as 0. The split between Yes and No is about 30/70...

    Started by pd1598‎, 07-31-2015 10:41 AM
    • Replies: 6
    • Views: 1,652
    08-01-2015, 02:28 AM Go to last post
  10. Incremental update to *existing* Logistic Regression model?

    Hi, In our work, we have a large-scale logistic regression model we hate to train everyday. Is there a way we can somehow update the existing...

    Started by peacherwoo‎, 01-17-2011 01:47 PM
    incremental, l1 regularizer, logistic regression, update
    • Replies: 6
    • Views: 8,918
    05-28-2014, 03:18 AM Go to last post
  11. Moderated regression - differences within groups

    Hello :) In a study Im currently analyzing I have 3 conditions (positive, negative and neutral) and 2 groups (emotional and non-emotional...

    Started by Pebbles84‎, 05-21-2012 05:47 AM
    • Replies: 0
    • Views: 1,707
    05-21-2012, 05:47 AM Go to last post
  12. Logit regression - before vs after intervention

    Hi. Can anyone please tell me if I can use "year" as the DV when comparing two periods (2011 before intervention; 2012 after intervention), using as...

    Started by PedroR‎, 04-17-2013 09:29 AM
    • Replies: 2
    • Views: 1,327
    04-17-2013, 10:16 AM Go to last post
  13. interaction in non-linear m. - interpretation not directly drawn from coefficients?

    Hi all, I read a paper (http://www.sciencedirect.com/science/article/pii/S0165176503000326) about interpretation of interaction terms in...

    Started by PedroR‎, 04-23-2013 06:41 AM
    • Replies: 0
    • Views: 778
    04-23-2013, 06:41 AM Go to last post
  14. Include trend in a Poisson regression

    Hey, I'm doing a research about the impact of a co-payment rise policy in the ER. My outcome variable is the number of visits in a week and my...

    Started by PedroR‎, 04-23-2013 06:31 AM
    • Replies: 0
    • Views: 1,535
    04-23-2013, 06:31 AM Go to last post
  15. Interaction effect significant but main effects not

    Hi all, I was wondering if anyone could give me a help with my logit. I have a DV of disease vs. non-disease and 3 IV: dummy-year (year 1 vs year...

    Started by PedroR‎, 04-27-2013 10:11 AM
    • Replies: 12
    • Views: 20,810
    05-06-2013, 01:46 PM Go to last post
  16. overall significance - interaction terms with dummy variables

    Hi all, Can anyone please help me with a begginer's doubt: when we have an interaction term between one variable (X1) and a cat variable (3 cat. 2...

    Started by PedroR‎, 05-14-2013 06:16 PM
    • Replies: 0
    • Views: 1,497
    05-14-2013, 06:16 PM Go to last post
  17. Hosmer and Lemeshow Test is significant

    Hi all, can anyone tell me if one can still use a model which reports a H&L test with significant chi-square? (I have a very large sample - + 100...

    Started by PedroR‎, 05-14-2013 06:19 PM
    2 Pages
    1 2
    • Replies: 25
    • Views: 19,802
    05-16-2013, 09:49 AM Go to last post
  18. Interaction terms - lower level isn't significant!

    Hi there. I'm running a model with a 3 level interaction which is significant. I included all the two levels interactions which make the basis for...

    Started by PedroR‎, 05-26-2013 10:55 AM
    • Replies: 1
    • Views: 1,600
    05-26-2013, 11:48 AM Go to last post
  19. Regression Discontinuity

    Hi... I'm trying to define a model for estimating the impact of a political program (increase in user fees). I thought about using the RD since...

    Started by PedroR‎, 07-29-2013 03:53 PM
    • Replies: 7
    • Views: 2,316
    07-30-2013, 11:20 AM Go to last post
  20. Interaction effect in a DID analysis

    Hi, I had a little argument with my thesis advisor, who said that I couldn't operate with the coefficients of my model without doing a "likelihood...

    Started by PedroR‎, 01-02-2014 03:52 PM
    • Replies: 1
    • Views: 1,446
    01-02-2014, 05:26 PM Go to last post
  21. To zero or not to zero - Count models

    Hi all, I hope you could give me a help in modelling the data I have on the visits to an Emergency Service. I have data on the number of visits...

    Started by PedroR‎, 01-28-2014 07:57 AM
    • Replies: 0
    • Views: 1,096
    01-28-2014, 07:57 AM Go to last post
  22. moderator as a categorical variable -- really desperate please help!!!!

    1. how do you conduct moderation analysis in SPSS when the moderator is a categorical variable (3 levels represented respectively by +1 (active...

    Started by peggy217‎, 01-18-2012 12:23 PM
    • Replies: 2
    • Views: 2,745
    01-19-2012, 12:29 AM Go to last post
  23. who can help me with multiple regression analysis???

    I've calc correlation coefficients between several variables. The results are very promissing, since showing high correlation. The multiple...

    Started by PEIM‎, 09-19-2005 04:29 PM
    • Replies: 1
    • Views: 3,401
    09-19-2005, 06:44 PM Go to last post
  24. By which dimension to cluster standard errors in linear regression?

    Hello, This is my first post to this forum. All direct help, as well as references to other sources discussing the subject, are greatly...

    Started by Peksu‎, 12-13-2012 07:18 AM
    clustering, robust standard errors, standard error
    • Replies: 0
    • Views: 2,051
    12-13-2012, 07:18 AM Go to last post
  25. Polynomial regression: how to plot several regression lines on same graph.

    Hi there, I am currently working on my thesis which is concerned with abnormality of differences between index scores on an intelligence test. An...

    Started by Pelican23‎, 02-22-2014 12:27 PM
    plots, [r]
    • Replies: 3
    • Views: 2,413
    02-24-2014, 03:31 AM Go to last post
  26. Multiple regression models, AIC and PASW

    Hi. I would like to calculate AIC values from the different models I have created via stepwise multiple regression in the program PASW (SPSS). I...

    Started by Pen‎, 07-27-2010 07:25 AM
    • Replies: 2
    • Views: 8,354
    07-27-2010, 05:31 PM Go to last post
  27. positive and negative beta

    G'day. I was wondering, in my multiple regression model, I added only all positive or all negatively correlated independent variables thinking...

    Started by Pen‎, 07-28-2010 04:00 AM
    • Replies: 1
    • Views: 5,196
    07-29-2010, 05:44 PM Go to last post
  28. Regression or Correlation?

    I have collected a range of genetic and non-genetic factors from a series of natural populations and I want to know if; a) how close the correlation...

    Started by Pen‎, 08-15-2010 07:13 PM
    • Replies: 2
    • Views: 3,031
    08-15-2010, 08:55 PM Go to last post
  29. i need solution to regreesion

    hi dear friend i want the solution manual to the regression og montgomery i searched a lot of in the web but i cant find a free one. if...

    Started by pentiom752‎, 01-10-2014 05:05 PM
    • Replies: 0
    • Views: 925
    01-10-2014, 05:05 PM Go to last post
  30. 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: 3,137
    07-04-2012, 06:44 AM Go to last post
  31. Interpreting multiple regression analysis

    Hello, I hope someone knows what the answer is to my question: I have a multiple regression analysis. Dependent variable is performance (time)...

    Started by people‎, 08-01-2013 06:50 AM
    • Replies: 5
    • Views: 1,757
    08-01-2013, 12:39 PM Go to last post
  32. cox model with time dependent covariate

    I am trying to fit a cox model: h(t, beta) = h0(t)exp(X*beta), while X = (x1, x2, ..., xN) but, for instance, x1 is binary with value of 0 or 1,...

    Started by pepsico007‎, 02-20-2014 08:07 PM
    cox, hazard, model, survival analysis
    • Replies: 1
    • Views: 1,693
    02-20-2014, 11:37 PM Go to last post
  33. number of variables for a model

    I am now trying to build a cox model: h(t, beta) = h0(t)exp(X*beta) I have selected some variables from the data, and for a category variable, if...

    Started by pepsico007‎, 02-22-2014 11:40 AM
    cox, model, regression, survival analysis, variable selection
    • Replies: 8
    • Views: 3,082
    03-25-2014, 06:05 PM Go to last post
  34. How to select the training dataset

    I have a dataset which contains dependent variance Y and several independent variances X1, ... , X10. Y has 5 possible values: A, B, C, D, E, a...

    Started by pepsico007‎, 03-22-2014 12:05 AM
    data sample, sample population, sample size determination, test data, training data
    • Replies: 2
    • Views: 1,723
    03-22-2014, 02:48 AM Go to last post
  35. Model with discrete variables like step function

    I have some data and I want to use a model such as linear regression to describe the relationship between y and x. 2001 2002 2003 2004 2005...

    Started by pepsico007‎, 06-23-2014 10:23 AM
    dummy variable, model, regression, step function
    • Replies: 1
    • Views: 962
    06-23-2014, 11:10 AM Go to last post
  36. Hypothesis for logistic regression

    I get a group of data and would like to use the regression to analysis the relationship. The dependent variable Y is a kind of loss rate, so it is...

    Started by pepsico007‎, 07-27-2016 08:30 AM
    hypothesis, logistic, regression
    • Replies: 4
    • Views: 2,377
    07-27-2016, 12:37 PM Go to last post
  37. disattenuated correlations

    Objective: a guess about the actual correlations between two variables based on correlations between somewhat noisy variable estimates. The variable...

    Started by Per‎, 09-18-2010 01:39 AM
    • Replies: 0
    • Views: 4,086
    09-18-2010, 01:39 AM Go to last post
  38. Help creating my first logistic Regression model

    Hi everyone, I`m new here, and new in the stats world, and i have several questions and need for help on how to proceed. First, what i`m doing...

    Started by Perdido‎, 07-06-2015 09:29 AM
    • Replies: 8
    • Views: 3,255
    07-06-2015, 03:21 PM Go to last post
  39. Question Outcome variable representing a high and low range

    Hi everyone, In my research project my outcome variable is whether or not variable X falls outside a certain range of values. To better understand...

    Started by Peri-op‎, 07-16-2012 08:52 PM
    • Replies: 0
    • Views: 1,392
    07-16-2012, 08:52 PM Go to last post
  40. 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: 1,805
    08-15-2016, 07:25 AM Go to last post
  41. 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: 1,139
    09-09-2016, 03:09 PM Go to last post
  42. Which test for cont DV, 1 nominal IV (2 cat) + 1 nominal IV (4 cat) + 1 cont IV

    Hello, I am a bit struggling with choosing which test I should apply to my data. My dependent variable is continuous (participants could score...

    Started by Pernelle‎, 01-22-2016 06:26 AM
    • Replies: 4
    • Views: 2,485
    01-24-2016, 07:30 AM Go to last post
  43. dummy regression with polytomous variable

    Hello, I want to perform a linear regression analysis. My DV is continuous (score between 0 and 6), and my predictors are: - one dichotomous...

    Started by Pernelle‎, 05-05-2016 03:03 PM
    • Replies: 1
    • Views: 1,226
    05-10-2016, 02:35 PM Go to last post
  44. Question dummy regression - unequal sample sizes

    Hello, I am conducting a linear regression analysis in SPSS with different variables: - scale, - 2-level nominal, - 5-level nominal (dummy)...

    Started by Pernelle‎, 05-15-2016 09:50 AM
    dummy, regression, unequal sample size
    • Replies: 0
    • Views: 1,214
    05-15-2016, 09:50 AM Go to last post
  45. Stepwise Regression Help

    Hi, Statistics is not my strong suit and I could really use some help. I'm wondering if it is possible to do a stepwise regression with 9 IVs on...

    Started by Perpetua‎, 04-07-2015 04:00 PM
    • Replies: 0
    • Views: 2,095
    04-07-2015, 04:00 PM Go to last post
  46. Help - coefficients have wrong signs!

    Hi guys I'm a struggling with an econometric model. I am trying to predict tenant demand for office space based on a selection of 5 lagged...

    Started by Pete‎, 05-13-2012 11:21 PM
    • Replies: 6
    • Views: 2,147
    05-17-2012, 10:36 AM Go to last post
  47. Moderator regression: plotting graphs from multiple product terms

    This is my first time posting, so apologies if I don't make sense. I've conducted a hierarchical regression analysis. I have multiple IVs whereby...

    Started by pete14678‎, 08-13-2014 10:57 AM
    moderated multiple regres, regression analysis, regression equation
    • Replies: 0
    • Views: 949
    08-13-2014, 10:57 AM Go to last post
  48. Nonlinear regression of non normal asymetric data

    Hi! I have a set of data that is dependent on 3 dependent variables. The data is collected over a time period tvice a day. I have a theoretical...

    Started by Peter Olsson‎, 09-01-2011 12:50 PM
    • Replies: 1
    • Views: 2,600
    09-01-2011, 01:35 PM Go to last post
  49. Does endogeneity affect the R-squared estimated in variance partitioning?

    Hi, I have a likely very simple question but I can’t get my head around the answer. I want to estimate which part of the variance in a firm's...

    Started by Peter Schmid‎, 05-02-2017 06:01 PM
    endogeneity, r-squared, variance partitioning
    • Replies: 1
    • Views: 870
    05-03-2017, 11:07 AM Go to last post
  50. hausman test

    Dear community, I analyse purchase decisions on different products j over a duration of t days. I would like to include random or fixed effects. When...

    Started by peter1985‎, 06-12-2015 12:35 PM
    • Replies: 1
    • Views: 1,611
    06-14-2015, 10:12 AM Go to last post
  51. Urgent help needed

    what sort of anaylsis should I use if I am trying to find the relationship between earthworm densities and soil properties (pH and organic matter...

    Started by peter704‎, 05-26-2013 10:46 PM
    • Replies: 1
    • Views: 1,568
    05-27-2013, 12:15 AM Go to last post
  52. What's the meaningful difference between an odds ratio and a regression coeffecient?

    Moved from here: http://www.talkstats.com/showthread.php/65740-What-s-the-meaningful-difference-between-an-odds-ratio-and-a-regression-coeffecient ...

    Started by PeterH‎, 07-08-2016 09:49 PM
    • Replies: 0
    • Views: 1,259
    07-08-2016, 09:49 PM Go to last post
  53. Precautions when using multiply imputed data in pooled OLS regression

    Dear all I am doing a straightforward pooled linear regression on a panel dataset (45 countries, 20 years) using OLS and relevant time dummies and...

    Started by PeterU‎, 05-20-2011 04:17 AM
    • Replies: 0
    • Views: 1,982
    05-20-2011, 04:17 AM Go to last post
  54. how to calculate the significance of an R2 increase (based only on results in paper)

    Recently I have come across several articles that report OLS results of models with increasing numbers of variables. In the articles the R2 and...

    Started by PeterV‎, 11-16-2011 04:35 AM
    2 Pages
    1 2
    fit summary, model comparison, model selection, regression, significance of reg
    • Replies: 19
    • Views: 21,777
    11-17-2011, 09:27 AM Go to last post
  55. Anova find significant diferrences

    Hi all, I have made an one-way anova in order to test if three populations have the same means. My result is to reject the null hypothesis. So,...

    Started by petros20‎, 03-29-2016 12:43 PM
    anova
    • Replies: 4
    • Views: 1,351
    03-30-2016, 01:17 AM Go to last post
  56. Log-Linear

    Hi all, I have a sample data of Mortality vs GDP. I need to make a Log-linear regression analysis. I transformed the data to log scale and then...

    Started by petros20‎, 04-03-2016 07:08 AM
    log-linear
    • Replies: 0
    • Views: 854
    04-03-2016, 07:08 AM Go to last post
  57. Significance of regression coefficients and interpretation problems

    Dear All, I am currently facing a problem regarding the statistical interpretation of nonsignificant coefficients. I would like to know whether...

    Started by pff‎, 01-07-2011 06:05 AM
    • Replies: 3
    • Views: 8,184
    01-11-2011, 02:28 PM Go to last post
  58. Dependent variable as a percentage-which model to use

    Hello, I am dealing with a dependent variable which is a percentage, so which regression model would be better in this case? The histogram and...

    Started by pff‎, 01-07-2011 06:59 AM
    • Replies: 1
    • Views: 6,353
    01-09-2011, 02:08 PM Go to last post
  59. Instrumental variables in system of equation

    Hi everybody, I have a simultaneous equation model in which I want to forecast long term rates in USA and Europe with Eviews. I want to use TLS to...

    Started by pgrign‎, 03-20-2017 10:12 AM
    • Replies: 0
    • Views: 540
    03-20-2017, 10:12 AM Go to last post
  60. How to approach model selection

    Hi, This is my first formal attempt at a regression analysis that we hope to write up and submit. Basically we're wanting to investigate the effect...

    Started by pgseye‎, 05-20-2011 02:44 PM
    • Replies: 4
    • Views: 2,944
    05-21-2011, 02:07 AM Go to last post

+ Post New Thread

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 15 replies or 300 views
Hot thread with unread posts
More than 15 replies or 300 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts






Advertise on Talk Stats