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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. Master thesis, statistics check!

    About me: Medical student with minimal statistical knowledge or research experience Question related to: statistical regression/correlation...

    Started by DutchMedicalStudent‎, 05-22-2017 09:30 AM
    blinded data, correlation, master thesis, spearman correlation
    • Replies: 6
    • Views: 313
    Today, 02:15 AM Go to last post
  2. Regression

    Hi How I can use regression analysis?

    Started by Kimudao‎, 05-27-2017 11:46 PM
    • Replies: 2
    • Views: 118
    Yesterday, 09:41 PM Go to last post
  3. Question R square read with or without confounder in the analysis

    Hey, My bachelor thesis is about fatigue, nausea and cognitive decline in patients who have head and neck radiation. For example, the dependent...

    Started by lisa177‎, 05-27-2017 07:35 AM
    confounders, multivariable, r square
    • Replies: 2
    • Views: 142
    Yesterday, 06:38 AM Go to last post
  4. Question Logistic regression with both positive and negative values for independent variable?

    Hi guys, I have a general regression question. Is there an issue with doing a logistic regression with both positive and negative values in the...

    Started by thenewcat‎, 05-27-2017 10:45 AM
    • Replies: 2
    • Views: 133
    05-27-2017, 01:12 PM Go to last post
  5. Deviance residuals in model fitted via MCMC

    I fitted a regression model in a Bayesian approach via MCMC. The JAGS code for the model is model{ for(i in 1:n) { y ~ dbeta(alpha, beta) alpha...

    Started by askazy‎, 05-26-2017 09:39 PM
    • Replies: 0
    • Views: 93
    05-26-2017, 09:39 PM Go to last post
  6. linear regression practice

    I wanted to check over my answers based on these questions Thanks (1) True/False: Clustering is an unsupervised learning problem. (2) ...

    Started by shane414‎, 05-21-2017 06:07 AM
    regression analysis
    • Replies: 2
    • Views: 348
    05-26-2017, 01:20 AM Go to last post
  7. Question Interpretation of Logistic Regression with Python, Pandas & Statsmodel

    Hi guys, I am new to regression analysis and I am trying to figure out how to interpret my results. I basically did a logit regression in Python...

    Started by thenewcat‎, 05-23-2017 04:16 PM
    • Replies: 8
    • Views: 239
    05-24-2017, 03:30 PM Go to last post
  8. 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: 128
    05-24-2017, 11:01 AM Go to last post
  9. Clustering

    i) T/F:Principal Components Analysis can be used to create a low dimensional projection of the data for use with clustering. For this one above, I...

    Started by maryjkluther23‎, 05-24-2017 03:25 AM
    regression
    • Replies: 0
    • Views: 116
    05-24-2017, 03:25 AM Go to last post
  10. SAS question

    Hi all, I was stuck on the following. I explained it below, my approach, and would appreciate any help. Thanks so much. 1) T/F: Common factors...

    Started by maryjkluther23‎, 05-24-2017 03:20 AM
    • Replies: 0
    • Views: 106
    05-24-2017, 03:20 AM Go to last post
  11. 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: 101
    05-23-2017, 04:01 PM Go to last post
  12. Exclamation Problem with results in ordinal regression...

    Hello and thanks in advance for any response... I have 60 likert-type questions (5 items) (and their responses of course...) and age. Age as raw...

    Started by Afrodite‎, 05-15-2017 09:42 AM
    ordinal regression
    • Replies: 3
    • Views: 250
    05-22-2017, 08:44 PM Go to last post
  13. Linear regression / trend question - basic question

    Sorry for basic question: I have a series of measurements taken at weekly intervals for a period of 20 weeks. Each measurement is a proportion:...

    Started by tonytheviking‎, 05-16-2017 03:20 AM
    • Replies: 6
    • Views: 307
    05-19-2017, 09:07 AM Go to last post
  14. Question Whats is the method to analyze characteristics from two groups?

    Hello there, Im new in the statistics world and i hope that you can help me. i have two groups of sample that are divided by one y (depended)...

    Started by Paulo663636‎, 05-18-2017 09:21 PM
    cluster, grouo, model, predictive
    • Replies: 3
    • Views: 175
    05-19-2017, 08:25 AM Go to last post
  15. Having trouble with my units in regression analysis.

    Hello, I am attempting to regress future currency returns against changes in economic variables (GPD, inflation, index values etc). I am having some...

    Started by regressor96‎, 05-17-2017 05:07 PM
    • Replies: 0
    • Views: 157
    05-17-2017, 05:07 PM Go to last post
  16. 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: 143
    05-16-2017, 11:51 AM Go to last post
  17. Variation in significance Categorical Regression Analysis (CATREG)

    Hello, I am doing Categorical Regression Analysis (CATREG) with SPSS. However, every time i run the analysis, the standard error and p-value vary...

    Started by mfi_shakil‎, 05-15-2017 09:44 AM
    catreg, spss
    • Replies: 4
    • Views: 199
    05-16-2017, 11:03 AM Go to last post
  18. Comparing regression coefficients between two groups > violation of independence?

    Hi all, I have a question about the comparison of regression coefficients of two groups (using SPSS) and I think this is the correct sub forum for...

    Started by greetprofeet‎, 02-11-2017 08:42 AM
    • Replies: 1
    • Views: 989
    05-15-2017, 03:47 PM Go to last post
  19. Condition to put regression analysis zero?

    Under what situation intercept can be force to zero in regression analysis?

    Started by Meenakshi Tiwari‎, 05-13-2017 02:34 AM
    • Replies: 11
    • Views: 373
    05-14-2017, 10:36 PM Go to last post
  20. ARIMA estimation technique

    Hello, I am using SAS to forecast with ARIMA. I need to choose between two methods, conditional least Squares and MLE. Which technique do you...

    Started by schteeke1‎, 05-10-2017 07:27 AM
    arima mle cls
    • Replies: 8
    • Views: 288
    05-13-2017, 01:03 PM Go to last post
  21. When the Outcome and Predictor Variables are (sort of) the same

    Hello, everyone, I am working on a study with sensitive information, so it may suffice only to look at the last two paragraphs for my question,...

    Started by w_scheidel‎, 05-12-2017 10:33 AM
    • Replies: 7
    • Views: 236
    05-12-2017, 07:11 PM Go to last post
  22. Regression Analysis Practice

    I'm working through some practice on regression analysis and wanted to confirm. My attempt is below. Thanks (1) The correlation between two...

    Started by shane414‎, 05-08-2017 04:14 AM
    regression analysis
    • Replies: 3
    • Views: 340
    05-10-2017, 12:00 PM Go to last post
  23. Translate multinomial logit regression parameters into binomial

    Hello, I have those parameters from a multinomial logit regression that explains Education (L/M/H) by language (Dominant/Other Europe/Non-European)....

    Started by Demographer‎, 05-10-2017 06:12 AM
    • Replies: 0
    • Views: 130
    05-10-2017, 06:12 AM Go to last post
  24. Regression projects on Minitab (Fit models using transformations)

    I'm using Minitab to do these projects. I start by making a multiple linear regression model and try to transform it using the calculator. I keep...

    Started by biologist21‎, 05-07-2017 01:57 PM
    • Replies: 1
    • Views: 203
    05-08-2017, 06:37 AM Go to last post
  25. Unhappy Regression with summated scale help

    Hi all, I am having struggles with computing a (hierarchical) regression analysis for my data, and i have a feeling this is due to my variables. I...

    Started by janne1994s‎, 05-07-2017 01:52 PM
    dependent variable, hierarchical regression, multiple regression, regression
    • Replies: 1
    • Views: 187
    05-07-2017, 07:31 PM Go to last post
  26. Understanding pairwise correlation

    Maybe it is the current time, but I have some difficulties understanding what my tutor means (and he is gone on vacation so I can't ask). In my...

    Started by Jazz3‎, 05-03-2017 09:56 AM
    • Replies: 6
    • Views: 388
    05-03-2017, 02:44 PM Go to last post
  27. 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: 266
    05-03-2017, 11:07 AM Go to last post
  28. follow up analysis for regression

    I ran 20 services we supply to our customers. I controlled for what seemed obvious things like gender, public support, and severity of disability (we...

    Started by noetsi‎, 05-01-2017 02:34 PM
    • Replies: 8
    • Views: 384
    05-02-2017, 12:04 PM Go to last post
  29. Multiple Regression Help !!

    A team of researchers believed that parental expectations (PE), emotionality (E) and fear of negative evaluation (FNE) promoted social anxiety (SA)....

    Started by shevy‎, 04-29-2017 11:23 AM
    • Replies: 2
    • Views: 245
    05-01-2017, 02:37 PM Go to last post
  30. Variable change from significant to not significant

    I run a multiple regression with 4 main drivers and some control variables. Then I had to run another regression but with six main drivers (of...

    Started by Jazz3‎, 04-09-2017 09:08 AM
    • Replies: 8
    • Views: 561
    05-01-2017, 07:55 AM Go to last post
  31. question !!

    I am helping my niece in explaining regression analysis by studying by myself and finding problems and trying to solve those. one of the problem has...

    Started by rka_stat‎, 04-29-2017 06:33 AM
    • Replies: 4
    • Views: 314
    04-30-2017, 07:58 AM Go to last post
  32. Linear Regression: Significance levels/Finding equation of fitted regression lines

    I did an exam recently and I am looking for a solution to a question which no matter where I look, I can't find out how to do it. It doesn't help I'm...

    Started by prephil‎, 04-29-2017 05:04 PM
    • Replies: 0
    • Views: 109
    04-29-2017, 05:04 PM Go to last post
  33. Correlating two pitch contour models

    I am determining tonal ability (the ability to express tones in a tone language, a language which requires a change in pitch to differentiate meaning...

    Started by jkao1‎, 04-28-2017 03:21 PM
    • Replies: 0
    • Views: 213
    04-28-2017, 03:21 PM Go to last post
  34. Exclamation Polynomial regression interpretation

    I am running a logistic regression to find how font manipulation (x1) and people perceptions over how easy it is to process the information (x2)...

    Started by maria15‎, 04-27-2017 06:42 AM
    interpretation, moderator, polynomial regression
    • Replies: 0
    • Views: 125
    04-27-2017, 06:42 AM Go to last post
  35. Nested logit?

    I am researching about different modes of transportation and i need to get the utility function of each mode. My dependent variable is the modes of...

    Started by Paul_research‎, 04-26-2017 11:04 PM
    • Replies: 0
    • Views: 241
    04-26-2017, 11:04 PM Go to last post
  36. AIC computation

    (1) Compute the Akaike Information Criterion (AIC) value for the linear regression model Y = b0 + b1*X1 + b2*X2 + b3*X3. The regression model was...

    Started by shane414‎, 04-26-2017 06:25 AM
    regresiion, regression analysis
    • Replies: 0
    • Views: 240
    04-26-2017, 06:25 AM Go to last post
  37. How to do a linear multiple regression with multiple correlating independent vars?

    Right I am a total newb at stats but I'll try an explain what I'm trying to do. Im trying to find whether China's Foreign Direct Investment...

    Started by zakqux93‎, 04-26-2017 06:10 AM
    • Replies: 0
    • Views: 159
    04-26-2017, 06:10 AM Go to last post
  38. Normality

    I did a test of normality in STATA on my dependent variable. The rest was significant thus violations of normality. After taking the log, there is...

    Started by Jazz3‎, 04-21-2017 11:37 AM
    2 Pages
    1 2
    • Replies: 18
    • Views: 588
    04-26-2017, 05:39 AM Go to last post
  39. Understanding Mixed Effects Regression Models

    Can anyone explain to me the difference between mean effect and change when using a mixed effects regression model? I understand mean effect to be...

    Started by Brook99‎, 04-26-2017 03:34 AM
    • Replies: 0
    • Views: 155
    04-26-2017, 03:34 AM Go to last post
  40. Data scattered around y=x

    Hello everyone, I am a researcher in engineering. I do have some background on statistics and mathematics in general, but I am not a professional...

    Started by math4engz‎, 04-23-2017 08:28 AM
    r squared, regression, statistics
    • Replies: 14
    • Views: 562
    04-25-2017, 08:15 PM Go to last post
  41. Exclamation Research Proposal - Statistical Analysis?

    I am submitting a research proposal, "Does the relationship of exercise and quality of sleep differ with age?" where age is the moderator. It has...

    Started by mackk2‎, 04-25-2017 08:00 AM
    • Replies: 6
    • Views: 276
    04-25-2017, 11:41 AM Go to last post
  42. Regression MC

    Can someone confirm the answers to the below? And advise which ones are incorrect. Thanks! 1) True/False: Models selected by automated variable...

    Started by shane414‎, 04-23-2017 08:18 PM
    • Replies: 7
    • Views: 409
    04-25-2017, 09:27 AM Go to last post
  43. Geographically Weighted Ordinal Logistik Regression

    Hello, I'm studying about Geographically Weighted Ordinal Logistik Regression. but I have trouble getting a book or reference that is related to it....

    Started by Pamona D‎, 04-24-2017 09:12 PM
    ordinal logistic reg, regression analysis
    • Replies: 0
    • Views: 189
    04-24-2017, 09:12 PM Go to last post
  44. Question Independence of cases (observations)

    Dear all, I am currently analyzing the effects several independent variables have on dependant variable (political party's position on...

    Started by tomas.bek‎, 04-24-2017 12:36 PM
    durbin watson, independence, observations, ols, regression
    • Replies: 0
    • Views: 181
    04-24-2017, 12:36 PM Go to last post
  45. how to interpret regressions with spatial autocorrelation?

    Hi guys, I am currently doing a GIS and statistical project on whether there is an association between access to green space and deprivation at...

    Started by mariabenedict97‎, 04-23-2017 08:11 AM
    • Replies: 1
    • Views: 168
    04-23-2017, 10:16 AM Go to last post
  46. Regression Analysis Practice

    I'm trying to solve these questions from a self-study for actuarial sci. I would appreciate if someone can verify and help explain the following. I...

    Started by shane414‎, 04-23-2017 03:22 AM
    • Replies: 2
    • Views: 300
    04-23-2017, 09:15 AM Go to last post
  47. Test for multivariate analysis using multiple types of independent variables?

    Hey all, I'm new to the forum and relatively new to statistics (I took an intro biostats class, that's it). I'm working on my first "real world"...

    Started by immaxf‎, 04-22-2017 06:21 PM
    • Replies: 1
    • Views: 205
    04-22-2017, 08:44 PM Go to last post
  48. Logistic regression : negative coefficients, categorical variables

    Hi I am trying to build attrition model and have these variables :- 10 categorical variables with sub levels which created into dummy variables and...

    Started by Boo‎, 04-22-2017 06:05 AM
    coefficient, logistic regression
    • Replies: 3
    • Views: 246
    04-22-2017, 09:55 AM Go to last post
  49. Zero inflated negative binomial regression interpreting main and interaction effects

    I am running a zero inflated negative binomial model (zinb) and want to interpret the main and interaction effects. I have the following: ...

    Started by random_android‎, 04-21-2017 03:51 PM
    interaction effects, main effect, negative binomial model, stata 14, zero inflated
    • Replies: 4
    • Views: 278
    04-22-2017, 02:43 AM Go to last post
  50. confidence interval

    how do you find confidence interval ?

    Started by rka_stat‎, 04-19-2017 03:55 PM
    • Replies: 3
    • Views: 265
    04-20-2017, 07:49 PM Go to last post
  51. How to report and interpret non significant single regression? Its urgent plz help

    HI, can anyone please help me interpret this picture? we have not learnt this yet. will be grateful! ...

    Started by Amna_22‎, 04-20-2017 08:35 AM
    • Replies: 1
    • Views: 242
    04-20-2017, 10:10 AM Go to last post
  52. margin of error

    how do you find 95% margin of error ?

    Started by rka_stat‎, 04-19-2017 03:56 PM
    • Replies: 1
    • Views: 222
    04-20-2017, 08:20 AM Go to last post
  53. best point estimate and approximate interval estimate

    First Question: I need to calculate best point estimate for population of 4500. My understanding is it is (intercept + (variable*4500). Is that...

    Started by rka_stat‎, 04-19-2017 03:19 PM
    • Replies: 0
    • Views: 174
    04-19-2017, 03:19 PM Go to last post
  54. Question Analysis of multiple dependent variables of different sample sizes

    Thanks in advance for your help, I'm not a statistician, so I'm struggling to understand the best way to analyse some biological data, and I...

    Started by StatLess‎, 04-19-2017 09:32 AM
    • Replies: 0
    • Views: 168
    04-19-2017, 09:32 AM Go to last post
  55. Binary LR-Forward Stepwise: Should I report the each step entered in the result?

    Dear all, I used binary logistic regression in a forward stepwise method to classify my two groups of participants (depressed vs. healthy) using...

    Started by Ping Koo‎, 04-19-2017 07:51 AM
    • Replies: 0
    • Views: 146
    04-19-2017, 07:51 AM Go to last post
  56. Log regressions

    So between these two log regressions: 1) transform y into log but keep X normal 2) transform both the y and x into log When or what would be a...

    Started by Jazz3‎, 03-31-2017 04:05 AM
    • Replies: 9
    • Views: 494
    04-19-2017, 02:15 AM Go to last post
  57. Fixed effects model urgent help

    So I have a dataset which I am trying to use the fixed effects model on. I am confused if I am doing it correctly. I am using panel data to...

    Started by jdev10‎, 04-18-2017 11:02 PM
    • Replies: 0
    • Views: 193
    04-18-2017, 11:02 PM Go to last post
  58. From time 1 to time 2

    Hello, I am having a hard time to understand an issue which has been pointed out to me, though with limited further explanation. I am testing an...

    Started by Ted Brasil‎, 04-18-2017 04:35 PM
    • Replies: 0
    • Views: 206
    04-18-2017, 04:35 PM Go to last post
  59. High concentration at one level of multiple regression

    I am running a regression where the dependent variable is income gain. In about sixty percent of the cases the intervention fails and there is no...

    Started by noetsi‎, 04-18-2017 09:53 AM
    • Replies: 0
    • Views: 194
    04-18-2017, 09:53 AM Go to last post
  60. Derivation of an equation of Influential Analysis in OLS

    Hi to everyone, I'm new to this forum and I'm very pleased for the existence of this forum, since the fact that forums in these times are in decay....

    Started by alexjmackh_94‎, 04-16-2017 07:05 PM
    econometrics, influential outliers, ols
    • Replies: 2
    • Views: 213
    04-17-2017, 10:32 PM Go to last post

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