I know, I know... Did you miss me alot? I did miss you.This time I am going to write about a the role of the statistician in Public Policy evaluation. This have captured my attention during the last four years. This is what I do in my consulting at DNP. It is not easy but it … Sigue leyendo Proper Inference in Public Policy Evaluation
Etiqueta: Stats
Propensity Score Matching in R (My first post in blogger)
My first post in blogger is about Propensity Score Matching (PSM) in R. In this post I will introduce the R packages MatchIt and Zelig. The first one is devoted to perform different PSM algorithms and the other one is used in order to estimate the average treatment effect (ATE) and the effect of the … Sigue leyendo Propensity Score Matching in R (My first post in blogger)
Our Talk in Lima
In this talk, we want to introduce the study of Small Area Estimation (SAE) by means of demographic and some simple statistical methodologies. The example of interest is the estimation of the size of Chocó (one of the poorest departments in Colombia). Enjoy it!
My talk in Cartagena
In these slides you will find my talk about design-unbiased estimation of gross flows that take into account the complex sample along with a two-stage Markov Chain model to describe the nonresponse process.
Our poster in CLAPEM
In this poster we introduce the bayesian modeling of the Gini coefficient per locality in Bogotá by using a Beta regressión. R-codes are available after requesting to the first author. Enjoy it!
My talk in Bogotá
In this talk we consider the problem of estimating the Gini coefficient having into account the sampling weights induced by a complex sampling design. We carry out several Monte Carlo simulations and found that the estimator is design-unbiased under the considered scenarios.
My Talk in UNAL – Estimating specificity, sensitivity and prevalence under three diagnostic tests
In this talk we adress a real problem: estimating some parameters of interest (such as the prevalence of a disease) under three diagnostic test.
Write this code on Mac’s Terminal if you have R issues with spanish accents
If you are writing in spanish inside R for MAC, maybe you will face an encoding issue when you type particular symbols as: ñ, á, é, í, ó, ú, etc. You can stop suffering by typing the following command on your terminal:defaults write org.R-project.R force.LANG en_US.UTF-8
No, it is not a survey, it is a poll!
I disagree with all of the political analysts when it comes to Colombian Presidential Elections (CPE). Everybody start to talk, chat and conclude about what is happening and what is going to happen if elections would be held today. Of course the source of that conclusions (by the way, misleading conclusions!!!) are the political polls … Sigue leyendo No, it is not a survey, it is a poll!
samplesize4surveys R package (ss4s) – A message to my colleagues
I have worked for more than four years for a respected institution of the government of Colombia. My consulting job there is also linked with the review of sampling plans that external companies provide in order to get information about the impact that public programs may have over the people who benefit from some interventions. … Sigue leyendo samplesize4surveys R package (ss4s) – A message to my colleagues
Guide for writing good functions in R
Have you ever wondered how the heck do the programmers of R write the code behind the summary function? Have you noted that summary performs well in a vector, linear model, anova, etc. Well, I am right now writing an R package to compute sample sizes under different scenarios and this guide was very useful … Sigue leyendo Guide for writing good functions in R
Creating R packages in RStudio
RStudio is a powerful tool in hands of the applied statistician. For example, you can create beautiful documents using KnitR, which combine both LaTeX and R; you also can make beautiful presentations with Markdown. However, RStudio also serves as a friendly platform to create R packages. The following video will guide you in this easy … Sigue leyendo Creating R packages in RStudio
Muestreo, encuestas y estadísticas oficiales 