Advanced analysis of summary data of 2 different surveys?

Hi, I am doing a state wise comparison of nutrition related data of 2 different surveys and I am using their state wise estimates. I have raw data for only 1 data set and I understand that I...

31 December 2019 207 3 View

Association between count & categorical variables?

Hi, I want to check the test I can use for determining association between a count/discrete variable (Eg: No of health visits for particular disease) and categorical variable (types of...

11 December 2019 2,912 7 View

Analysis for weighted data and pathways?

Hi, I am looking for any methods to analyse categorical/continuous survey data that also has a weight variable (Eg: Wald test) . Else is it okay to simple define weight variable and add it stata...

11 December 2019 6,956 2 View

Suitability of T test or One way Anova?

Hi, I have patient data of 3 hospitals (n>200).. Given my sample size, I want to check whether they are significant differences in outcomes (mean) on basis of certain parameters ( eg groups like...

05 June 2019 9,755 11 View

Checking interaction effect in multiple linear model?

Hi, I need help on the interpretation of interaction term (var 1 * var 2) on DV. The model would have 3- 4 and I want to check whether one of them influences each other. IV are continous and 1...

05 June 2019 2,291 7 View

Suitability of Poisson Regression?

Hi, I am looking at dietary diversity (7 food group score data) as a dependent variable and with 2 continous and 2 categorical variables as independent variables.. Is poisson regression okay for...

04 May 2019 315 6 View

Books on biostatistics?

Hi, Please recommend good books that help with biostatistics through Stata , r , tableau ?

11 December 2018 2,929 5 View

Books on grounded theory ?

Hi, I am looking at books on understanding grounded theory as research tool. I don't want to know theories but examples of research done

10 November 2018 8,531 4 View

Interpretation of Dummy Variable ?

Hi, I have done a linear model with 3 IV including female dummy on weight for height Z score.. I need help with understanding the effect of coeff value (positive value) with regards to intercept...

10 November 2018 4,584 4 View

Compare whether differences in 2 different sample studies are significant?

Hi, I am looking to do a comparison between results of my primary data study on nutrition outcomes with data from a standard health survey (NFHS). My study was done for only malnourished children...

09 October 2018 7,874 5 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

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

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

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