1. Announcement:
05-10-2017
Views:
1,892
Page 1 of 73 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 51 ... Last
Threads 1 to 60 of 4339

# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### Relationship between Pearson correlation and variance in regression model

If the correlation between X and Y, say, is 0.5, then the standard deviation of the differences between the Y values and their predicted values on...

• Replies: 14
• Views: 8,073
08-12-2012, 11:33 PM
2. ### Interpreting Interaction Terms

I am working on a regression analysis problem where we have to see if there is an interaction between two of the independent (X) variables. I run...

• Replies: 3
• Views: 1,967
11-30-2011, 12:26 PM
3. ### transform y to log(y)

Hi, I'm wondering what kind of data is appropriate for transforming the response y into log(y)? ( So the model becomes log(y)= a^x1 +...

• Replies: 10
• Views: 7,290
11-08-2010, 01:43 PM
4. ### stating the model (logistic) in my report

Hi, Sorry this might seem like silly question. But I'm wondering whats the conventional way of stating the logistic binary model when writing up...

• Replies: 1
• Views: 2,002
10-30-2010, 08:56 AM
5. ### Simulated response

Hi, I have a bunch of simulated predictors and the assumed coefficients that I'm going to use. Now I need to simulate the response Y = b0 +...

• Replies: 1
• Views: 3,068
10-29-2010, 06:49 PM
6. ### Factor scores as independent variables in multiple regression

I'm checking that I have understood this right. Factor scores must be achieved via oblique rotation, because factor scores must be allowed to...

• Replies: 0
• Views: 810
zxc
04-19-2016, 11:25 AM
7. ### Need help on ( unadjusted and adjusted w / 95% cl) odds ratio

I am doing Logistic regression on spss. My dependent variable is test result (+ or -) independent variables are Age and Gender (M,F). How can i get...

• Replies: 1
• Views: 6,634
01-30-2012, 01:26 PM
8. ### out of sample

Hi There I have 2500 data with 2 sample. one index and another stock. i've done goodness of fit and regression analysis on it.now I've been asked to...

• Replies: 3
• Views: 1,057
05-30-2016, 07:05 AM
9. ### Greatest impact prediction

Hi, please i have one Question. If i have this results (Stepwise method) Can i say: 1) Better for predict Y is model 4 2) Regression...

• Replies: 1
• Views: 1,338
03-31-2012, 12:39 AM
10. ### Logisitic regression with ranked independent variables

Hi all, This is my first post, so be gentle. I have the following type of data: ----------------------------- Data Set-1 DV......

• Replies: 0
• Views: 2,403
06-12-2012, 04:36 PM
11. ### Using Odd values for variable selection in logistic regression

Hello, I have a question about independent variables selection when a logistic regression is used as classification method. Is it an acceptable or...

• Replies: 0
• Views: 2,678
09-22-2010, 12:05 PM
12. ### Correcting lack of fit

I have a very simple data set with a single regressor that has all negative values. The data set provides no context, only values. When testing...

• Replies: 4
• Views: 2,041
10-21-2012, 02:01 PM
13. ### The DV is binary, and two IVs are times series data, how to do regression?

Hi guys, please help!!!! I want to do regression on a data having such fields: Loan_number Date default_nextmonth Unemployment_rate ...

• Replies: 1
• Views: 2,059
07-29-2011, 09:34 PM
14. ### Is it best to match data units to get a logical regressional relationship?

Hi, I'm trying to find an economic relationship between inflation(CPI) and leakages to the economy like Taxes, Savings, and Imports. Well, it...

• Replies: 6
• Views: 707
04-11-2017, 02:20 PM

Hi everyone I am wondering if you can help me out. I am completing my PhD and have run into some problems interpreting some of the stats. I have...

• Replies: 7
• Views: 1,594
03-04-2014, 01:50 PM
16. ### Ordinal Logistic vs. Multinomial Regression and program

I am trying to conceptually understand when I would use ordinal logistic vs. multinomial. It seems to me that if there is an order to the categories...

• Replies: 2
• Views: 2,827
12-07-2011, 08:04 PM
17. ### Regression when outcome is a rank?

Is there a particular kind of regression if the outcome is a ranking? I'm wondering if my best bet would be to use the central limit theorem and use...

• Replies: 15
• Views: 20,061
12-14-2011, 02:36 PM
18. ### Assumptions of Quantile Regression

Is equal variance an assumption of quantile regression? Does quantile or median regression have any assumptions? Thanks.

• Replies: 1
• Views: 3,256
12-12-2011, 02:07 AM
19. ### Stationarity and White noise

Hi all, I'm just beginning to learn about time series analysis for my final year project at uni and I am confused about stationarity. A time series...

• Replies: 4
• Views: 218
10-03-2017, 04:53 AM
20. ### 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) ***

• Replies: 1
• Views: 1,032
08-31-2016, 10:17 PM
21. ### 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. ...

• Replies: 1
• Views: 663
09-02-2016, 04:39 PM
22. ### Errors vs Residuasl in linear regression

Hello, As far as i know in regression analysis the errors have all the same constant variance. On the other hand the residuals of the sameple that...

• Replies: 0
• Views: 1,897
12-28-2009, 03:03 PM
23. ### Odds Ratio Interpretation in Logistic Regression when input is Log-Transformed

Hello, Lets us have a binary dependent variable with 1 as the event and 0 as the non-event. We model the probability of event. The independent...

• Replies: 0
• Views: 3,692
10-21-2012, 08:59 AM
24. ### Additive - Multiplicative and Non Linear Regression

Hello, Let us say that we have a dependent binary variable expressing the occurence and non occurence of an event. We also have a number of...

• Replies: 0
• Views: 2,447
10-21-2012, 12:20 PM
25. ### Interpretation of odds ratio in logistic regression for a logged variable

Hello, How do we interpret the odds ratio in logistic regression for a logged variable? Thanks in advance.

• Replies: 6
• Views: 3,123
02-08-2013, 08:43 AM
26. ### 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...

• Replies: 2
• Views: 2,537
08-28-2016, 03:31 PM
27. ### 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...

• Replies: 0
• Views: 501
04-26-2017, 06:10 AM
28. ### Moved: How to Interpret the Factor Analysis Findings

Kindly help writing research findings for the Factor Analysis as attached

• Replies: -
• Views: -
07-24-2016, 12:37 PM
29. ### Regression Coefficients & Chi Squared test

I am finding it difficult to understand something I found in a textbook. The author runs a regression of the specification Y = a + bX, on the basis...

• Replies: 0
• Views: 1,580
05-01-2012, 01:21 AM
30. ### Interpreting Marginal Effect - Probit

I am using a probit model, where one of the variables is log(income). I calculated the (average) marginal effect and it resulted in 0.03. I am a...

• Replies: 1
• Views: 3,121
03-15-2013, 08:08 AM
31. ### Linear Probability Model

Hi guys, Just wanted to check because the text books I am using are do not explicitly state it... It does not make sense to rely on the t-stats...

• Replies: 0
• Views: 2,645
03-07-2013, 02:03 PM
32. ### Need Urgent help in Kruskal's relative importance

Hi, My client wanted us to perform Kruskal's relative importance technique on some of their modeling work. We have reviewed lot of literature and...

• Replies: 2
• Views: 6,623
10-04-2011, 11:01 AM
33. ### cox regression and change

I'm no statistician, but a porgrammeur. I have some statistics during my study, but is not really one of my stektste points. 'm Trying to calculate...

• Replies: 0
• Views: 2,184
09-24-2010, 09:27 AM
34. ### Interaction Terms in Linear regression

In R I used the linear regression call for three variables: y, x, and c Y and X are numeric where C is a dichotomous {0,1}. X and C are the...

• Replies: 1
• Views: 1,226
10-12-2016, 08:48 PM
35. ### SEM - general applicability of analysis, variable aggregation, and data sufficiency

Dear all, I just discovered this amazing forum and was wondering whether some of you may have answers for some questions I could not find any...

• Replies: 0
• Views: 1,565
Yym
08-05-2013, 01:07 PM
36. ### Understanding regression analysis

Hello, we are in desperate need for a few answers :) Is Pearson Correlation between observed valued and predicted value between 0 and 1 only? Is...

• Replies: 3
• Views: 1,640
05-16-2013, 06:45 PM

Hi, I´m trying to run a series of regressions using Gretl. I will use OLS, 2SLS and system-GMM dynamic panel estimator. However there is something...

• Replies: 3
• Views: 2,847
07-13-2012, 05:01 PM
38. ### 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...

• Replies: 3
• Views: 4,189
05-29-2013, 11:02 AM
39. ### Interaction with SPSS - Interpretation of results

Hi everyone, I am analysing different type of relations between several variables using SPSS. It includes the moderation effect of a variable on...

• Replies: 2
• Views: 1,361
05-25-2014, 11:18 AM
40. ### working correlation matrix to use in generalized estimating equations

I have a design with a between-subject variable (emotion) and within-subject variable (task type), and response data were binary (answer to a task:...

• Replies: 0
• Views: 3,638
Yue
04-15-2011, 02:41 PM
41. ### Use of regression models with centered variables

Hi all, I'm a little confused about how to use a regression model with centered variables. I know how centering variables works for reducing...

• Replies: 6
• Views: 9,249
02-01-2012, 12:23 AM
42. ### Expectation/ Variance/ ACF and PACF in ARMA(2,1)

Hello guys, I hope I'm not posting in the wrong subforum. I am looking for a solution to calculate E, Var, and ACF and PACF coefficents in an...

• Replies: 1
• Views: 5,463
06-17-2011, 08:09 PM
43. ### Multiple linear regression, I seek kind help for a result interpretation :)

So, I've been struggling with a statistics problem for some time now and was wondering if you could shed some light? The regression's Dependent...

• Replies: 2
• Views: 671
03-30-2017, 10:36 AM
44. ### Holt-Winter forecasting for many future events

Hello, I have been investigating and testing forecasting methods for incoming call volumes. I have many months of data. The data exhibits a...

• Replies: 0
• Views: 2,381
07-24-2012, 10:25 AM
45. ### Hypotheses testing if R²=1

Dear all, Since the R² value of my regression model is one, I can neither conduct a t-test nor a F-test. Is this a problem with regard to...

• Replies: 21
• Views: 25,440
04-11-2014, 02:30 PM
46. ### How to use Logistic Regression to get info for Sobel test?

Hello, Is it possible to use logistic regression to get info for Sobel test, the same way as using linear regression? If so, what are the variables...

• Replies: 0
• Views: 1,352
08-31-2012, 11:07 AM
47. ### Likert scale regression

I have done a likert type survey ( with 5 point scale) and I am facing problems in analysing the data. following is the situation: Both DV and IV...

• Replies: 10
• Views: 2,349
08-13-2013, 02:53 AM
48. ### Help with sensibility analysis (event ticketing and advertising influence)

Hi everybody. I have a task to find out how usage of (advertising investment, PR etc.) different media channels influence on sales of tickets for...

• Replies: 0
• Views: 2,208
03-12-2013, 12:46 PM
49. ### Standard Error of Estimate

I am reading a book called Applied Statistics with Excel by G. Keller. On p593 he wrote Standard Error of Estimate=(SSE/n-k-1)^2, and SSE = sum...

• Replies: 7
• Views: 1,984
08-10-2014, 08:42 AM
50. ### Can you predict a categorical outcome with multiple regression?

Hello - I want to predict an employee will be likely to leave a company based on variables such as tenure, age, function (categorical), # of...

• Replies: 1
• Views: 1,233
11-30-2013, 06:41 AM
51. ### Reporting logistic regression results

Hi, I have a study that aims to find out the association of a binary outcome (e.g. BP control-Y/N) with categorical independent variables e.g....

• Replies: 3
• Views: 2,661
05-25-2015, 10:29 PM

Page 1 of 73 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 51 ... Last

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.

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