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A little bit more about loops and macros in Stata
Loops and lists are important tools for Stata programmers. Although these tools may not be the most computationally efficient technique, they can be of great help during the early stages of code development. By the way, it is always good to keep in m (More)
Statistical Learning using R
I recently came across this book titled "An Introduction to Statistical Learning, with Applications in R". It can be downloaded for free at t (More)
Stata tip: creating a local containing all (or almost all) variables of the data set
Locals containing a list of variables can be very useful when using Stata. A common need is a local containing all variables of a data set. This local can be created by means of the ds command. Here is an example using the lifeexp.dta data file. (More)
Some resources for using R with spatial data
Spatial data models and visualizations are important tools in the design of public policies. I provide below some links to tutorials about spatial modelling using R that I have found useful. The first stop should be at the More)
Transferring IPEADATA series to Stata
A common issue that arises when converting time series data from IPEADATA to Stata format is dealing appropriately with the time variable. For instance, for monthly series the date format will be YYYY.MM. Stata us (More)
A few tips for programming in Stata
Stata is a very powerful and useful statistical software. Just like any sophisticated tool, it takes time to learn about it. And you need to invest some time to master it. Programming is one of those skills that knowing a little bit can be very benef (More)
How to plot curves with different domains in Mathematica
Mathematica (or the Wolfram language) is a very useful tool to plot functions. Suppose you are interested in plotting two curves in the same diagram, let’s say y = 1/x and z = 2/x. Both functions have the same domain of x belonging to the [0,10] inte (More)
Exporting Stata's correlation tables to a document file
I came across a very useful ado file for Stata named asdoc that facilitates the creation of neat tables. To install asdoc, just type ssc install asdoc . Here is an example of exporting a correlation table to a document named table.doc. sysus (More)
A nice tutorial for those interested in learning the basics of Python and its applications to Finance
The website called FinaceandPython has a very good tutorial on the basics of Python and its applications to Finance, Statistics, and Economics. This tutorial is (More)
Reading DATASUS and ANS .dbc files using R
Those interested in conducting research using Brazilian data often come across some unusual file formats used by Brazilian government agencies. One example is the .dbc files used for health data produced by DATASUS and by ANS. These .dbc files are no (More)
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