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

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

Could you please let me know your views about MedCalc software? Is it a standard statistical software to perform a proportion meta-analysis?

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04 May 2016 2,747 0 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

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

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

No title

02 March 2021 3,060 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View