Zero-inflated Poisson regression with Stata?

Hello, Much appreciated if anyone could recommend a book/s, other teaching learning material on zero-inflated Poisson regression with Stata? Thank you. Best regards, Deepani

06 July 2018 4,399 2 View

Turkey belongs to which continent?

Hi everyone! May I know Turkey is belong to which continent? Asia or Europe? Please kindly provide a reliable reference. Thank you.

09 October 2017 8,216 6 View

SPSS Complex Samples?

Has anyone use SPSS complex samples option? I would much appreciate if you could share a clear guide if available (a guide for select a sample and for prepare the sample). I found out the SPSS...

08 September 2017 5,255 1 View

"svyset" command in Stata?

08 September 2017 5,664 0 View

Stratified sampling in complex sampling designs?

Hi, Anyone working with calculating sampling weights for complex sampling designs? If you have a sampling stage where you use stratified sampling to recruit the participants from a cluster and you...

08 September 2017 1,309 4 View

Confirmatory Factor Analysis with ordinal variables in stata?? sem or gsem

Does anyone know how to perform CFA in Stata with ordinal variables? I tried gsem (with ordinal logit link function), but then I cannot get the goodness of fit indices. In that case, is it okay to...

06 July 2017 736 1 View

Reliability testing

Does anyone know how to calculate ordinal alpha in SPSS?

05 June 2017 973 6 View

Confirmatory Factor Analysis in LISREL

Can someone states the steps to be followed when performing a CFA with dichotomous and ordinal data in LISREL student edition 9.30 please.

05 June 2017 547 3 View

CI of Weighted kappa

What would be the reasons for upper limit of the confidence interval of weighted kappa go beyond 1 (slightly above 1) ? i.e. 1.077/1.201

05 June 2017 2,699 0 View

Heterogenity between subgroups?

05 June 2016 8,288 2 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View