How to calculate conditional treatment effects with a treatment covariate interaction in Stata 14 with complex survey data?

From the teffects documentation in Stata 14, I see that the margins command may be used to calculate the conditional ATE or ATET for a subpopulation for etpoisson and etregress. Both etpoisson and...

05 June 2016 4,820 2 View

What's the best package in R for calculating the distance between two polygons? Should I convert the polygons to points first?

Specifically, if I have the US Census place layer and I have selected a set of places, I need the distance to the nearest selected place for all places.

01 February 2016 895 4 View

Is there a heuristic for determining the optimal number of cluster using R's agnes command and the dendogram plot?

I'm using agnes to cluster my data using the ward method. The dendogram returns clusters ordered by height and an agglomerative coefficient. My reading of Struyf, Hubert, & Rousseeuw (1997) is...

06 July 2014 7,383 4 View

How do I take a saved scalar in Stata and use it as a variable in a subsequent command?

I know how to save, list, or display a scalar. But when I try to embed these commands within xtgee, I get an error. Specifically, I am following Joseph Hllbe's negative binomial text and...

11 December 2013 532 2 View

Has anyone already wrote an R package that does panel negative binomial regression using a population averaged model (GEE)?

I have a pre-post treatment and comparison quasi-experiment for business foundings and failures.I have been able to use xtnbreg or xtgee in Stata to estimate this regression, but I would like to...

10 November 2013 2,676 1 View

Can anyone help with multinomial spatial neighbor relationships?

In spatial models, a neighbor relationship is usually binary. Two areal units are neighbors or they are not. This is called the W or weight matrix. This matrix may be standardized (e.g. row...

10 November 2013 1,667 3 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

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01 March 2021 3,905 5 View

Which group formation theory do you recommend for projects that aim to bring together entrepreneurs for training for regional development?

I would like to have ideas about which theories of group formation are suitable for entrepreneurial training projects, with the aim of creating bonds, building trust, and collaboration for...

28 February 2021 4,223 2 View

What is the most common number of epitopes in an multi-epitope Vaccine?

hi everyone, I'm interested in the field of vaccine design specifically multi-epitope cancer vaccines , I want to know if there is a minimum and maximum number of epitopes we could use in a...

27 February 2021 3,882 3 View

Standard curve shifting over time. How do I stabilise the ELISA?

24 February 2021 1,365 3 View

What is the optimum time and temperature of blanching and pre-frying potato for frozen fries?

I am helping a local home industry for developing frozen fries from their local farm. I want to know what is the optimum blanching and pre-frying temperature and time for processing. Please also...

23 February 2021 1,616 5 View

What to do with absence of fluorescence label in Fucci2a mouse-derived fibroblast culture?

Dear all, I have harvested fibroblast cells from R26p-Fucci2 mouse embryos (mouse line as described in this paper: https://dev.biologists.org/content/140/1/237) and cultured them on plastic,...

17 February 2021 3,368 2 View

What should a smart water system look like?

Our team is designing a smart water C&C dashboard for a smart city initiative. As we look into the current smart water system landscape, we couldn't reconcile to a definitive solution that...

16 February 2021 1,094 3 View

How to disaggregate country data into city ones?

I'm using a number of indicators in my research which are not available at a sub-national level. Is there a reliable method for disaggregating the country data into city ones? (preferably with a...

16 February 2021 6,861 3 View

Do you know of an informal caregiver of a person who has recently received a bone marrow transplant?

We are conducting a pilot study of an intervention for informal caregivers of persons who have recently received a bone marrow transplant in the US. If you know of anyone who might be interested,...

13 February 2021 9,174 1 View