Search found 7 matches

by uniter
Thu Jun 04, 2009 7:42 pm
Forum: SmartPLS 3 - Requested Features
Topic: Enhanced support of time series
Replies: 0
Views: 3662

Enhanced support of time series

Hello SmartPLS team, I'm working in Econometrics with time series data, that means the observations are ordered by e.g. months or years. An important aspect is the use of lagged explaining variables. If I want to use lagged variables I have to manipulate the data set by hand with an external editor ...
by uniter
Fri May 29, 2009 12:51 pm
Forum: Method and application
Topic: bootstraping t-values: t oder normal distribution
Replies: 1
Views: 2341

bootstraping t-values: t oder normal distribution

Hello,

is it recommend to assume the student t-distribution or the normal distibution for the bootstrapping t-values.

What is the appropriate choice for the degrees of freedom, the sample size or the number of bootstraps?

Thanks!
by uniter
Sun Jul 29, 2007 5:51 pm
Forum: Method and application
Topic: Positive Path Coefficient vs negative Correlation
Replies: 13
Views: 19587

This is still a little bit confusing. To make it clear: a negative path coefficient with a positive correlation still indicates a neg. relationship of the 2 LV? This bothers me because in multiple linear regression coefficients and correlation are identical (as long as you use standarized data) or a...
by uniter
Sat Jul 28, 2007 1:42 pm
Forum: SmartPLS 2 - FAQ
Topic: reflective or formative LV as default?
Replies: 2
Views: 2748

Thanks a lot!
by uniter
Sat Jul 28, 2007 1:41 pm
Forum: Method and application
Topic: Positive Path Coefficient vs negative Correlation
Replies: 13
Views: 19587

Positive Path Coefficient vs negative Correlation

Hi everyone, I have a PLS modell with 8 LV and several pathes between them. At some pathes I receive a positive Path Coefficient (which is significant), but a negative Correlation ot the LV and vice versa. 1. So how can the Path Coefficients be interpreted, similar to the Coefficients in the simple ...
by uniter
Fri Jul 27, 2007 9:38 pm
Forum: SmartPLS 2 - FAQ
Topic: reflective or formative LV as default?
Replies: 2
Views: 2748

reflective or formative LV as default?

Hi

As default the arrows point from the latent variable to the manifest variables, is that supposed to mean reflective? Changing to formative can be done with the "invert measurement model", is that right?

Thanks
by uniter
Thu Mar 15, 2007 2:58 am
Forum: SmartPLS 2 - FAQ
Topic: Extract more than 1 latent Variable
Replies: 1
Views: 2191

Extract more than 1 latent Variable

Hi,

I just found that work on PLS with a small example:

http://www.utdallas.edu/~herve/Abdi-PLSR2007-pretty.pdf

The Authors extracts more than one LV from one Block of manifest variables. Is that possible in Smart-PLS, too?

thanks a lot