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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. Binomial regression with x as the dependent variable and n as an independent variable

    Hi all I have a sample size of 100. Out of 100 a certain number are successful at stage one. Of those successful at stage one some are successful...

    Started by emily.stats‎, 03-05-2012 04:24 PM
    2 Pages
    1 2
    binomial, challenge
    • Replies: 15
    • Views: 4,360
    03-08-2012, 05:59 PM Go to last post
  2. bivariate analysis versus univariate logistic regresssion analysis

    Hello, I have done a bivariate analysis and univariate logistic regresion analysis on the same data. Now both gave the same results (OR, 95%CI),...

    Started by noob‎, 03-09-2013 03:18 PM
    • Replies: 0
    • Views: 2,938
    03-09-2013, 03:18 PM Go to last post
  3. Bivariate Linear Regression - Assumptions not met

    Hi everyone! :wave: Context. I want to analyze if the age (edat) of my participants is related to their score in a depression scale (HADSD). As both...

    Started by Mase‎, 10-19-2012 04:56 AM
    • Replies: 2
    • Views: 3,945
    10-22-2012, 05:06 AM Go to last post
  4. bivariate regression question

    Hi everyone: I am have conducted bivariate regression analysis to examine the effect of: an (x) independent variable, age (nominal) on a (y)...

    Started by parsec2011‎, 03-15-2013 12:46 AM
    • Replies: 5
    • Views: 2,691
    03-15-2013, 02:52 PM Go to last post
  5. Bivariate with Normal Probability plots.

    This is more of a conceptual question for a problem that I'm working on. My professor is asking questions about normal probability plots and I can't...

    Started by SilverStars‎, 09-22-2014 04:20 PM
    • Replies: 0
    • Views: 1,191
    09-22-2014, 04:20 PM Go to last post
  6. Bizarre multicollinearity (inferred from VIF) in regression

    I'm really confused about why I have such high VIFs in a multiple regression I've run. My predictors are country (2 different countries, so -1 and...

    Started by psychmajor‎, 07-30-2014 05:39 AM
    multicollinearity, regression, vif
    • Replies: 2
    • Views: 1,192
    07-30-2014, 04:00 PM Go to last post
  7. Blinder-Oaxaca Decomposition for a Multivariate Linear Regression

    Hello Everyone, I am working on a thesis that uses a multivariate linear regression to evaluate the racial wealth gap between four groups: whites,...

    Started by Colin‎, 03-16-2012 05:21 PM
    blinder-oaxaca, decomposition, general linear regression, multivariate regression, oaxaca
    • Replies: 1
    • Views: 5,332
    04-28-2012, 11:36 AM Go to last post
  8. Blinder-Oaxaca decomposition- T-stats and Group Indicator Variable

    Hi everyone, I'm currently doing some pooled blinder oaxaca decompositions on ethnic discrimination using the UK LFS data and have two questions....

    Started by mulleyman‎, 01-07-2014 08:54 AM
    • Replies: 0
    • Views: 1,143
    01-07-2014, 08:54 AM Go to last post
  9. bonferroni correction in multivariate regression

    hi, I just read something that made me think about this, the p-values we calculate in a multiple regression have no adjustment for multiple test (...

    Started by rogojel‎, 11-06-2014 01:00 PM
    2 Pages
    1 2
    bonferroni, multiple regressiom, significance
    • Replies: 27
    • Views: 6,432
    12-01-2014, 06:34 PM Go to last post
  10. Boosted regression versus OLS regression

    Dear all I am working on estimating a linear model using boosting regression technique to estimate the parameters. This is a slightly different...

    Started by susan01‎, 04-01-2014 03:32 AM
    boosting, linear models, regression analysis
    • Replies: 0
    • Views: 2,464
    04-01-2014, 03:32 AM Go to last post
  11. Bootstrap

    Hey, I am new to this forum and I have a question about Bootstrapping. I want to calculate some critical values. The data generating process is...

    Started by rantamblan‎, 11-29-2014 10:45 AM
    • Replies: 2
    • Views: 2,038
    11-30-2014, 05:45 AM Go to last post
  12. bootstrap correlation

    Hi, I am wondering if is it correct to use bootstrap methods to get an estimate of correlation coefficient (Pearson) when data violate some of the...

    Started by gianmarco‎, 10-02-2010 01:40 AM
    • Replies: 2
    • Views: 5,666
    10-08-2010, 02:09 AM Go to last post
  13. bootstrap regression question

    I have a slightly different twist on the normal application of bootstrapping and regression. Hereís the problemÖ I have a population of people...

    Started by signalMTB‎, 10-19-2016 08:48 PM
    • Replies: 1
    • Views: 2,195
    10-28-2016, 08:09 AM Go to last post
  14. bootstrap validation

    how can we do bootstrap validation in sas?

    Started by nancy10‎, 07-31-2014 08:14 AM
    • Replies: 0
    • Views: 979
    07-31-2014, 08:14 AM Go to last post
  15. Lightbulb Bootstrapping confidence intervals for prediction based on SE of the coefficients?

    Is it remotely legitimate to use the standard errors of the coefficients from linear regression in a Monte Carlo simulation to bootstrap 2.5%/97.5%...

    Started by bernoulli‎, 10-15-2011 08:35 PM
    bootstrap, confidence interval, regression
    • Replies: 0
    • Views: 1,570
    10-15-2011, 08:35 PM Go to last post
  16. Bootstrapping pairwise not listwise, a problem with N

    Hi! Hoping someone more statistically minded can help. I have a number of variables with different N (they are performance measures and some...

    Started by walrusandpossum‎, 05-23-2017 11:40 PM
    bootstrapping, correlation analysis, regression analysis
    • Replies: 1
    • Views: 1,151
    05-24-2017, 11:01 AM Go to last post
  17. Bootstrapping regression coefficients - count DV

    Hi folks, I'm trying to plan some analyses for a project assessing how well some subscales measuring various facets of self-control (arguably...

    Started by CowboyBear‎, 05-16-2011 10:06 PM
    • Replies: 0
    • Views: 3,083
    05-16-2011, 10:06 PM Go to last post
  18. Both categorical and continuous predictors?

    I'm sure this is very simple but I just want to be sure. I have actually been searching the web for a while now and can't seem to find a clear...

    Started by dt87‎, 03-21-2016 01:02 AM
    • Replies: 5
    • Views: 1,908
    03-21-2016, 04:35 PM Go to last post
  19. Bounded or unbounded? Which regression?

    Hi, I have to do a regression analysis with a dependent variable which ranges from -5 to 12. Its distribution is given below. Can anybody suggests...

    Started by sant2910‎, 06-28-2012 08:39 AM
    regression, unbounded
    • Replies: 1
    • Views: 3,677
    12-18-2014, 10:19 AM Go to last post
  20. Bounds for R2 in OLS regression?

    Context: From the big dataset Iím working with, my boss is somewhat curious (read skeptic) as for why fitting a multiple linear regression with...

    Started by spunky‎, 01-21-2016 07:57 PM
    • Replies: 1
    • Views: 1,120
    01-21-2016, 09:27 PM Go to last post
  21. BOX-COX transformation - Correct method

    Dear All, I fitted a quadratic model to a set of data. I am trying to apply the box-cox transformation to check if my data should be transformed....

    Started by Clovis‎, 08-05-2010 06:31 AM
    • Replies: 2
    • Views: 10,387
    09-08-2010, 09:44 AM Go to last post
  22. Box-Tidwell procedure

    Hello everyone, Is there a possibility to perform Box-Tidwell procedure in SPSS, or any other convenient software? Thanks.

    Started by bekkiee‎, 06-28-2012 04:38 PM
    • Replies: 0
    • Views: 5,605
    06-28-2012, 04:38 PM Go to last post
  23. brain freeze.....

    im having a really stupid moment, but what does it mean when a multiple regression coeffecient is insignificant. say hair colour is found to be...

    Started by pad1w07@soton.ac.uk‎, 09-22-2008 06:07 AM
    • Replies: 1
    • Views: 2,321
    09-22-2008, 09:15 AM Go to last post
  24. Breaking up a variable

    Hi, I have a question about a regression I am running (actually an event history/survival analysis model, but my question should apply to all types...

    Started by turqwise‎, 06-20-2013 09:46 AM
    • Replies: 0
    • Views: 1,283
    06-20-2013, 09:46 AM Go to last post
  25. Breusch Pagen test ?! Urgent, how to report APA style

    Hi, I've uploaded an attachment of the residual plot I got from a multiple regression. That line of diagonal lines maks me think that there is...

    Started by clh2‎, 03-20-2014 01:16 PM
    • Replies: 3
    • Views: 3,653
    03-20-2014, 04:49 PM Go to last post
  26. Building a Logisics regression model - help

    Audited ~50 patients, and collected 10 potential predictors for each (some quantitative, some indicative, all independent). Trying to develop a...

    Started by j_cocker‎, 02-09-2012 05:49 AM
    • Replies: 6
    • Views: 2,233
    02-09-2012, 06:03 PM Go to last post
  27. Building my 1st model please help!!

    Hi there, First of all please excuse my lack of knowledge of the subject I have just started a course in Econometrics and find using the...

    Started by Drareg‎, 05-07-2011 09:49 AM
    building regression model
    • Replies: 3
    • Views: 2,671
    05-16-2011, 12:07 PM Go to last post
  28. Building separate logistic regression models

    Hi all, I am building a binary logistic regression model. I am not sure if using the variables as interactions is a better choice than building...

    Started by nikhil_s‎, 02-17-2013 02:56 PM
    • Replies: 2
    • Views: 2,573
    02-20-2013, 06:14 PM Go to last post
  29. Business Stats, regression

    Hey everyone, Does anyone know the steps that minitab or any other stats software does to eliminate variables when doing forward selection,...

    Started by alias‎, 04-01-2011 05:37 PM
    • Replies: 0
    • Views: 3,307
    04-01-2011, 05:37 PM Go to last post
  30. 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: 2,041
    12-13-2012, 07:18 AM Go to last post
  31. Bycatch of dolphins data, zero inflated and under-dispersed - what next?

    I am investigating the factors that influence the bycatch of dolphins using a poisson GLM. My response variable is bycatch rate per unit effort and...

    Started by platanista‎, 05-21-2014 12:34 PM
    glm, poisson distribution, poisson regression
    • Replies: 2
    • Views: 1,528
    05-22-2014, 09:46 AM Go to last post
  32. caculation of Type III ss?

    How can I calculate the missing Type III ss for one variable and mean square, If I got the Type I ss and means square for all variables and Type III...

    Started by medsonia‎, 08-25-2010 06:08 PM
    • Replies: 0
    • Views: 2,110
    08-25-2010, 06:08 PM Go to last post
  33. Calculate 95% CI of relative change

    Hi, I have a problem related to the calculation of 95% CI of relative change. I ran OLS regression and plan to show the absolute and relative...

    Started by Lindsy‎, 05-16-2014 01:18 PM
    • Replies: 0
    • Views: 1,330
    05-16-2014, 01:18 PM Go to last post
  34. 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: 2,062
    12-11-2015, 01:05 PM Go to last post
  35. Calculate Intercept for multiple regression

    I have been using a simple Logistic Regression method with Log odds and it works very well for me This is an example X yes no total Prob Odds Log...

    Started by aivoryuk‎, 10-31-2012 09:21 AM
    • Replies: 0
    • Views: 2,533
    10-31-2012, 09:21 AM Go to last post
  36. Calculate the MSE of s-squared

    Consider the multiple regression model y=Xb+u where u~N(0,sigma-squared times identity) where b is a Kx1 vector, X is a non-stochastic full rank...

    Started by eBopBob‎, 05-01-2011 06:35 AM
    • Replies: 0
    • Views: 3,124
    05-01-2011, 06:35 AM Go to last post
  37. calculating adjusted rsquared by hand

    Hi. I just wanted to make sure I am doing these calculations correctly. I have 8 models, one with no variables. So to get the adjusted rsquared, I...

    Started by brian005‎, 10-21-2013 06:43 PM
    • Replies: 1
    • Views: 8,157
    10-30-2013, 11:59 AM Go to last post
  38. Calculating adjusted treatment means in regression

    Hi, I have two treatment groups, intervention (n=76) and control (n=156). I have a dependent variable, weight, and a couple of baseline variables...

    Started by Statstastic‎, 02-16-2012 07:14 AM
    • Replies: 1
    • Views: 2,489
    02-16-2012, 03:08 PM Go to last post
  39. Calculating AUC for just one binary variable legitimate?

    Dear members of talkstats, I am a junior Radiology resident in France and I have an urgent question about my study. I am checking the capability...

    Started by MeganFrance‎, 10-13-2014 03:19 PM
    • Replies: 4
    • Views: 1,387
    11-08-2014, 08:06 AM Go to last post
  40. Calculating confidence bands for nonlinear regression

    Hi, I am trying to find a way to calculate the 95% confidence bands for nonlinear regression. I have found the following text on the web, but I do...

    Started by Dolphin72‎, 05-05-2011 11:53 AM
    confidence bands, nonlinear, regression
    • Replies: 0
    • Views: 2,812
    05-05-2011, 11:53 AM Go to last post
  41. Calculating Cook's Critical Value

    Hey can someone show me how to get F (4,15) (0.5) = 0.8783.

    Started by saternal‎, 05-12-2012 12:43 AM
    • Replies: 7
    • Views: 5,228
    05-12-2012, 01:37 PM Go to last post
  42. Smile Calculating Covariance Matrix (Regression Analysis)

    Im having difficulty in trying to compute the Covariance Matrix. I think Im missing out an equation to be honest. Here's what I've been given in the...

    Started by garunas‎, 11-27-2011 01:19 PM
    covariance matrix, least squares, regression analysis, variance
    • Replies: 4
    • Views: 6,911
    11-28-2011, 04:36 PM Go to last post
  43. Calculating deviance residuals and dispersion for a count model

    Hello, Iím working with a poisson model to look at relationships between fish and habitat. I have multiple-pass count data (the same pool...

    Started by kirkby‎, 09-24-2012 10:19 AM
    deviance, dispersion, quasi-poisson
    • Replies: 2
    • Views: 6,307
    10-02-2012, 07:42 PM Go to last post
  44. calculating multiple regression by hand

    How would you calculate a regression equation such as Y = b1X1 + b2X2 + b3X3 + a by HAND??? I can find in textbooks the way to calculate two...

    Started by HCrazy‎, 11-10-2008 11:52 PM
    • Replies: 1
    • Views: 23,400
    11-11-2008, 12:04 AM Go to last post
  45. Calculating Omega Squared

    Hi All I have been battling with my stats over the last two months and have managed, by reading books and researching the web, to stumble through...

    Started by 2461c‎, 07-26-2009 06:30 AM
    • Replies: 2
    • Views: 26,008
    07-28-2009, 10:25 AM Go to last post
  46. Calculating predicted probabilities from a logistic regression model SPSS

    Hello everyone, I am trying to calculate individual predicted probabilities from a logistic regression model with SPSS (to describe how a individual...

    Started by kranas‎, 10-30-2016 12:08 PM
    logistic regression, probabilities
    • Replies: 6
    • Views: 5,176
    11-01-2016, 03:52 PM Go to last post
  47. Question Calculating prediction intervals (error estimates of specific predicted points) in a

    Hi all, this is my first post here so please let me know if I need to provide more details. I want to generate a multivariate logistic regression...

    Started by bernoulli‎, 06-18-2010 03:48 PM
    • Replies: 6
    • Views: 14,007
    06-22-2010, 01:01 AM Go to last post
  48. Calculating probabilities from logit parameters estimated with effect coding

    Hello, I calculated this multinomial logit model using an effect coding (-1 0 1). The variable edu3 is the education level (3 categories), sex has...

    Started by Demographer‎, 12-21-2016 03:39 AM
    • Replies: 0
    • Views: 2,075
    12-21-2016, 03:39 AM Go to last post
  49. Calculating R^2: to use or not use the least-squares line

    Dear Stats Forum, I am a grad student with an introductory stats background. For my research, I'm conducting an experiment to compare two types of...

    Started by hollywas‎, 07-21-2012 01:57 PM
    • Replies: 8
    • Views: 1,591
    07-21-2012, 05:37 PM Go to last post
  50. Question calculating sample size needed by future studies having got my Logistic Regression

    Help anyone? I have downloaded Gpower 3, and seemingly found the option: under test family: z tests statistical test: logistic regression ...

    Started by Freya_77‎, 07-18-2012 01:13 PM
    logistic regression, sample size
    • Replies: 11
    • Views: 6,174
    07-23-2012, 08:59 AM Go to last post
  51. Post Calculating the multiple regression function via canonical correlation analysis

    I've got one dependent variable and two independent variables. I need to calculate the multiple regression function via canonical correlation...

    Started by floflo‎, 12-29-2016 02:35 PM
    canonical, canonical analysis, eigenvalue, multiple regression, svd
    • Replies: 0
    • Views: 2,561
    12-29-2016, 02:35 PM Go to last post
  52. Calculation of effect size in Hierarchical regression

    Hello there, I have conducted a hierarchical regression with two steps. Statistical significance resulted form the first step, as the second...

    Started by YunaniQA‎, 05-29-2013 06:37 AM
    effect size
    • Replies: 3
    • Views: 4,179
    05-29-2013, 11:02 AM Go to last post
  53. Calculation of parameter uncertainties when using method of least squares

    Hi everyone, I am struggling with a maybe simple problem. I have a set of data points (x,y) for which I would like to derive a fitting function of...

    Started by bordercollie2‎, 07-29-2016 04:59 AM
    • Replies: 1
    • Views: 2,155
    11-01-2016, 04:41 AM Go to last post
  54. calculation of the average leverage when predictor(s) is categorical

    Hello, I was reading different resources about regression diagnostic, in particular for Logistic Regression. As for leverage, the sources suggest...

    Started by gianmarco‎, 09-30-2016 02:57 AM
    • Replies: 3
    • Views: 1,270
    09-30-2016, 02:41 PM Go to last post
  55. Calculations for the unstandardized coefficients for a multiple regression analysis

    I am looking to write a spreadsheet of the calculations for the unstandardized coefficients for a multiple regression analysis (the B values). ...

    Started by Baggies‎, 11-10-2008 03:54 AM
    • Replies: 3
    • Views: 18,963
    11-11-2008, 04:53 AM Go to last post
  56. Calibration of five-hole pressure probe - Regression problem

    Hi, I have a big problem with a calibration of a five-hole pressure probe, especially with regression part. The pressure probe messures five...

    Started by Meiner‎, 08-22-2013 01:04 PM
    • Replies: 2
    • Views: 3,139
    08-23-2013, 02:13 AM Go to last post
  57. Calibration set for PLS regression

    Hello everyone, New to this forum and kind of wondering why I hadn't thought to search for one before tonight... I hope a light at the end of the...

    Started by lonobean‎, 07-20-2017 06:40 AM
    calibration, pls, sample, spectroscopy, training
    • Replies: 0
    • Views: 269
    07-20-2017, 06:40 AM Go to last post
  58. Call Center Prediction Model

    I have an interesting task to determine the best model for forecasting the number of calls coming into our call center each hour of the day. One...

    Started by syswizard‎, 12-10-2013 10:15 AM
    • Replies: 8
    • Views: 2,626
    12-13-2013, 10:02 AM Go to last post
  59. Question Can "infinite" values be used in regression?

    Hello, I am analyzing a series of plots along a recovery gradient, using "time since disturbance" as a continuous variable. I want to see how...

    Started by GiganD‎, 04-03-2008 03:21 PM
    • Replies: 4
    • Views: 4,241
    04-07-2008, 01:50 PM Go to last post
  60. Can AIC values be combined?

    Hello! I have hunted far and wide on the net in an attempt to answer this. Essentially, I'm trying to combine two AIC scores from different parts...

    Started by Alaska15‎, 01-26-2016 12:45 AM
    aic, combining models, growth curve, logistic regression, nonlinear regression
    • Replies: 1
    • Views: 2,158
    01-26-2016, 04:10 AM Go to last post

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