Posted on 25 September 2015 by Mitch Abdon
, coined by Joseph Schumpeter in Capitalism, Socialism, and Democracy
, refers to the process by which new innovations kill old inefficient products or processes. But we are not talking about that but instead, of destroying data to create more useful information. By destroying
, we mean altering the data currently loaded in memory with no undo
button to rely to. When you load or open data into Stata, Stata stores the data in your machine’s RAM. Any changes made, therefore, are not permanent or saved in your hard drive until you call on
, but still be careful that you do not overwrite your raw data files.
Filed under: Basic functions, Data Management | Tagged: collapse, contract, proc freq, SAS, tab, table, tabulate, uber | 1 Comment »
Posted on 12 March 2015 by Mitch Abdon
In a comment to the previous post
destring complication: negative numbers
, Nick Cox pointed out “the most important advise” in using
unless you are absolutely sure that you are right or are willing to do things again if you made the wrong decision. The
option is there for a purpose.”
In addition, his comment point to simpler solution than using regular expressions.
Filed under: Basic functions, Data Management | Tagged: charlist, destring, real(), regular expressions, tabulate | 1 Comment »