1. Announcement:
Want access to a chatbox?
Dason ‎(Devorador de queso)
05-10-2017
Views:
1,873
+ Post New Thread
Page 8 of 73 First 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 58 ... Last
Threads 421 to 480 of 4336

# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### Please help.... explaining the table

Hi, all I am working on a bivariate probit model and I nearly got the results, but I have no idea to check about collin.... and hetro... problems....

• Replies: 2
• Views: 3,847
10-18-2010, 04:20 AM
2. ### Basic Help with Multiple Regression Results

Can you help? I'm trying to run a basic multiple regression in SPSS 18. I have a series of measurements made in cm, and I want to find the...

• Replies: 0
• Views: 2,067
10-18-2010, 12:30 PM
3. ### Help with non-linear regression, SPSS

Hey all New to the forums and was hoping for some help with writing out part of a non-linear regression model from somebody brighter than me. So...

• Replies: 2
• Views: 5,530
10-19-2010, 10:02 AM
4. ### help for results explanation

Hey all, I do a bivariate probit regression, and to test heteroscedasticity I used linear regression and got the next results, so what do you...

• Replies: 0
• Views: 2,216
10-21-2010, 06:24 AM
5. ### Complex stansardized Residuals

Dear all, I am doing some nonlinear regression and use mathematica to calculate the associated FitResiduals and StudentizedResiduals. I am a bit...

• Replies: 2
• Views: 2,428
10-21-2010, 12:23 PM
6. ### Need for Transformation?

I'm running an OLS regression. My predictors are continuous, but they are proportions that are bounded by 0 and 1. Because there are many 0s in my...

• Replies: 2
• Views: 3,850
10-23-2010, 10:40 PM
7. ### Partial r is greater than zero-order correlation

I am puzzled by something I have not come across before. To explain, I have conducted a hierarchical multi-regression with a post-therapy outcome...

• Replies: 1
• Views: 9,128
10-24-2010, 06:05 AM
8. ### Parameter stability over time

Hi guys, I am taking this introductory methods to statistics in a finance program and I need to do the following. Compare S&P500 vs TSX and...

• Replies: 0
• Views: 2,745
10-25-2010, 08:13 AM
9. ### Determining best independent variables through factor analysis

Hi everyone, I have a dependent variable and 18 independent variables. I remember from an applied statistics class I took, that there is a way to...

• Replies: 0
• Views: 2,195
10-25-2010, 05:39 PM
10. ### Is the difference significant.

I'm using stata since only a few weeks for my thesis. I can use some help regarding the following: I wanted to know what the mean grade is for...

• Replies: 0
• Views: 4,945
10-28-2010, 10:04 AM
11. ### Regression for Positive and Negative Integers

My independent variable is a difference in count data. I was wondering if there was a specific regression that should be used for data that contains...

• Replies: 1
• Views: 4,503
10-29-2010, 10:30 AM
12. ### 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: 3,063
10-29-2010, 06:49 PM
13. ### Multiple Regression Repeated Measures with a continuous independent variable

I have a complete within-subjects 2x2x5 designs, i.e. all 12 subjects I have have done the 20 combinations of conditions. My problem is that the 3rd...

• Replies: 1
• Views: 7,346
10-29-2010, 08:47 PM
14. ### 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: 1,999
10-30-2010, 08:56 AM
15. ### Am I doing binary logistic regression correctly?

Hi all, I have data relating to the presence or absence of electrolytes in water, and the volume of water drunk. I need to do an analysis to see...

• Replies: 0
• Views: 2,777
10-31-2010, 07:51 AM
16. ### Regression and Likert scale variable..HELP!

Hi everybody, I'm wondering if it is possible to run a multiple regression with a dependent variable measured on a 5-point Likert scale (where 1...

• Replies: 11
• Views: 9,393
11-01-2010, 04:45 AM
17. ### Panel: Interaction and centering

Hi guys, I have a panel where I want to run a fixed effects regression with an interaction term. The problem is that one factor of the term is...

• Replies: 0
• Views: 3,521
11-01-2010, 08:12 AM
18. ### Marginal effects after biprobit

Dear Colleagues, I run a biprobit regression and all variables are significant but I found that the sign of the independent variables changes...

• Replies: 0
• Views: 4,576
11-01-2010, 04:32 PM
19. ### Need some help with multiple regression

Hi guys. For my project i need to to a regression with a bunch of data I've gathered. I have 7 variables and i did the regression in excel and got...

• Replies: 4
• Views: 2,178
c2q
11-03-2010, 03:28 AM
20. ### How to deal with the dependent predictors in the regression ?

My data have some high correlated predictors, so it fit worse in the linear regression. what regression methods are proposed to solve this...

• Replies: 4
• Views: 3,457
11-04-2010, 11:18 AM
21. ### results explanation (help please)

After running a bivariate probit model and likelihood ratio for two different categories I got these results, so what do you think of it. any...

• Replies: 0
• Views: 2,058
11-05-2010, 11:12 AM
22. ### Finding standard error for elasticity (log-log model)

Hi guys, Can anyone help with this? In(sub) = 3.43 - 0.899 In(Price) + 0.374 In(Age) + 0.141 In(Age)In(Price) + 0.229 In(Characters) The...

• Replies: 0
• Views: 4,941
11-08-2010, 04:04 AM
23. ### Forecasting assignment (Time series data)

Hi - I am new to this forum and hope to learn a thing or two from you experienced lads! I work at a companacy where we are looking into the...

• Replies: 1
• Views: 4,472
11-08-2010, 07:47 AM
24. ### logistic regression

Hi I am using a logistic regression to determine siginificant variables for dependent variable as well as to develop a function to predict the...

• Replies: 0
• Views: 2,269
JFI
11-08-2010, 11:09 AM
25. ### Instruments

I have a question concerning endogenous variables. I want to do the following OLS regression: Grade Point Average=constant + φ1 work hours + φ2...

• Replies: 1
• Views: 2,150
11-08-2010, 12:40 PM
26. ### 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: 7,280
11-08-2010, 01:43 PM
27. ### least squares restrictions

Hi there, I want to perform least squares for a lineaar model with linear restrictions on the parameters. The restrictions are also linear with...

• Replies: 0
• Views: 2,072
11-08-2010, 05:40 PM
28. ### Dealing with Null values in Differenced Data

Hi everyone, I'm running a regression analysis to try and explain the effect of advertising on brand interest. Essentially, what I want to be able...

• Replies: 0
• Views: 2,223
11-08-2010, 08:40 PM
29. ### Help with estimation method

Hi, I have a dataset as follows: There are n individuals. Each individual has a fixed amount of money spent on a basket of three goods A, B, C....

• Replies: 0
• Views: 2,468
11-09-2010, 03:07 AM
30. ### quick question

Can someone tell me the difference between Model I and Model II regression? I have some data that I'd like to plot in JMP but I'm not sure which...

• Replies: 0
• Views: 2,892
11-09-2010, 04:43 AM
31. ### Estimation method for ratio dependent variable?

Hi, Logistic regression is used if the dependent variable is a discrete choice variable. My dependent variable is not a discrete choice variable,...

• Replies: 4
• Views: 11,507
11-12-2010, 05:30 AM
32. ### Kruskal-Wallis equality-of-populations rank test

Dear Colleagues I am using KW test to check the differences between Four different types of companies and I use four variables, so I check for...

• Replies: 0
• Views: 5,398
11-12-2010, 09:27 AM
33. ### Non-Existent Beta Matrix

Help please: Consider only a simple linear regression model for this please. so, Y(vector) = X matrix * Beta matrix + Error(vector) under...

• Replies: 1
• Views: 2,475
11-15-2010, 12:13 PM
34. ### Mixed model variance estimates

Hello, With the mixed model y_ij = mu + alpha_i + epsilon_ij where alpha_i a random effect with distribution assumed normal and epsilon_ij is...

• Replies: 0
• Views: 2,553
11-15-2010, 11:15 PM
35. ### suppressor variables

I have built a multiple linear regression model with two independent variables (say X1 and X2). The primary aim is *not* to use the model for...

• Replies: 0
• Views: 2,393
11-17-2010, 05:58 AM
36. ### Multinomial Logit vs Dummies vs Ordinal Logit

Hello everybody, I need help with the following: I would like to conduct a survey, where my dependent variable would be a discrete, nominal...

• Replies: 0
• Views: 4,268
11-18-2010, 03:22 PM
37. ### MANOVA vs multiple ANOVAs

Hello everyone, For starters, I just found this site and am wondering where it has been all my life, or all my PhD, they feel like the same thing...

• Replies: 1
• Views: 6,843
11-18-2010, 11:24 PM
38. ### Weighty issue...

Hi I have a conceptual issue with some data I am analysing. I am looking at the point prevalence of a particular disease as reported in medical...

• Replies: 0
• Views: 2,380
11-19-2010, 04:59 AM
39. ### Interaction term

Hi! On a general basis I'm wondering if it is ok (meaningful) to exclude a covariat from a regression model when an interaction is included. ...

• Replies: 0
• Views: 2,847
11-20-2010, 12:43 PM
40. ### Regression Estimated variance and Chi-square distribution

Hi all * If i have a data set and I model it using linear regression I estimate intercept, slope and variance Ymodel=a+bx and the...

• Replies: 0
• Views: 4,306
11-21-2010, 04:48 AM
41. ### centered polynomials

in a model involving Y= B0 + B1X1 + B2X2^2, how does centering the model affect the parameters. why does the hypothesis test associated with B2...

• Replies: 1
• Views: 4,173
11-23-2010, 01:01 AM
42. ### Instrumental variable analysis

Dear people, In my simple regression analysis are two variables endogenous. GPAi = α + β•Wi +β•Wi^2 + θ•Si + θ•Si^2 + Qi•φ + εi Where Wi and Si...

• Replies: 0
• Views: 4,792
11-23-2010, 07:55 AM
43. ### choosing the right model

Hello, Does it makes sense to test H_knot : Beta1 = 0 after having rejected H_knot : Beta2 = 0. So in other words, if it appears that a 2nd...

• Replies: 4
• Views: 2,771
11-23-2010, 12:03 PM
44. ### Excel's t stat question.

Hi guys, I'm a little confused over this right now. I performed a regression in excel and as an example, this is what i got for my first...

• Replies: 3
• Views: 5,120
11-23-2010, 06:49 PM
45. ### Comparing coefficients for nested logistic regressions

Hi, maybe one out there can help. I am interested in comparing the coefficients of two binary logistic models. In one nested in the other one,...

• Replies: 9
• Views: 4,436
11-24-2010, 08:45 AM
46. ### Modelling business data

Hello, I have a strong history in modelling chemical data and other scientific data. I have a data set that I'm working with and I want to take...

• Replies: 0
• Views: 2,424
11-24-2010, 09:37 AM
47. ### Rmse

Ok so now I have developed calibration regression models for predicting the levels of 2 Fatty acid isomers 1 and 2. The isomer 1 is present in high...

• Replies: 0
• Views: 2,866
11-24-2010, 06:07 PM
48. ### Multinomial 2 dv's?

Hi All. I'm happy to be part of the Talk. Question: Is is possible to do a multinomial logistic regression if you only have 2 categories of...

• Replies: 1
• Views: 2,612
11-26-2010, 08:44 AM
49. ### Plz suggest good textbook for statistics in regression analysis

Hie. Can anyone please post a good text book or a reference guide for the Multi regression analysis which can explain all the statistics behind the...

• Replies: 0
• Views: 4,025
11-27-2010, 02:13 PM
50. ### Develop regression model while given "average" data

I'm stuck on the following question and would like some guidance please: From a study, the average heights of Grade 5, Grade 6 and Grade 7 boys...

• Replies: 2
• Views: 2,889
11-28-2010, 06:32 PM
51. ### Interpretation of MANOVA

Hello everyone, Forgive me for my ignorance, but I have a quick basic question. When conducting a MANOVA (Using JMP) the output gives me values...

• Replies: 1
• Views: 4,304
11-29-2010, 01:55 PM
52. ### Multiple linear regression + QQplots problem! Includes Pics!

Hello I want to do multiple linear regression, but one of the requirements is the residuals to be normally distributed, and I can check that with...

• Replies: 3
• Views: 3,047
11-30-2010, 12:34 PM
53. ### Step by Step by Step help please?

Hello all, can anyone help me understand this step by step understanding of linear regression and correlation?

• Replies: 6
• Views: 3,961
12-03-2010, 04:14 AM
54. ### Survey Results & Regression Analysis..Dummy Variable?

Hello All. I have just received results back from a survey that I launched and I need help on how to analyze the results. There may be some need...

• Replies: 1
• Views: 4,728
12-04-2010, 01:08 AM
55. ### insignificant variables- what to do?

Hello, I'm running a few regressions for an econometrics paper and have a question: should insignificant independent variables be omitted from...

• Replies: 2
• Views: 10,549
12-04-2010, 01:23 AM
56. ### How to conduct a repeated measures regression with ordinal outcome variable?

Hi, I am trying to predict an ordinal variable (success: 0, 1, 2, 3). I have 3 predictor variables I want to include in the analyses together with...

• Replies: 0
• Views: 4,170
12-04-2010, 04:03 PM
57. ### Polynomial regression help

Hello, I am working in retailing here in Europe, and we are trying to support evidence that sales are positively correlated with space allocated,...

• Replies: 1
• Views: 3,791
12-05-2010, 04:02 PM

+ Post New Thread
Page 8 of 73 First 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 58 ... Last

#### 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 no unread posts
Hot thread with unread posts
Hot thread with no unread posts
Thread is closed
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