As it has been said a picture is worth a thousand words and so it is with graphics too. 
A well constructed graph can summarize information collected from tens to hundreds or even thousands of data points. But not every graph has the same power to convey complex information clearly. [Read more…] about Member Training: An Introduction into the Grammar of Graphics
formatting graphs
Member Training: How to Avoid Common Graphical Mistakes
Good graphs are extremely powerful tools for communicating quantitative information clearly and accurately.
Unfortunately, many of the graphs we see today confuse, mislead, or deceive the reader.
These poor graphs result from two key limitations. One is a graph designer who isn’t familiar with the principles of effective graphs. The other is software with a poor choice of default settings.
[Read more…] about Member Training: How to Avoid Common Graphical Mistakes
Macros in Stata, Why and How to Use Them
by Jeff Meyer
We finished the last article about Stata with the confusing coding of:
local continuous educat exper wage age
foreach var in `continuous'{
graph box `var’, saving(`var’,replace)
graph box `var’, saving(`var’,replace)
}
I admit it looks like a foreign language. Let me explain how simple it is to understand. [Read more…] about Macros in Stata, Why and How to Use Them