In Memorium Robert D. Jensvold November 13, 1928 to March 10, 2011 During the few weeks when my father was sick, I discovered an instrumental version of Aaron Copland’s “The Tender Land Suite” and fell in love with one particular movement, playing it over and over and over…. I just learned that “The Tender Land” […]
Multidimensional scaling for clustering ZIP codes
Multidimensional scaling maps the distances among multiple objects in a two or more dimensional space. This method is getting hotter in analyzing social network, since many SNS website now offer handy tools to visualize the social connections for the …
SAS went to a new line when INPUT statement reached past the end of a line
SAS has powerful features for reading data out of text files (such as CSV, TSV, datalines, and various other formats), but while reading text, you may find your data set is missing rows and the log has this non-intuitive error message (well, “not…
Read a sheet from an Excel file
Yet another useful not-a-trick.
One of the great things about SAS is the accessibility and completeness of the documentation. However, occasionally lapses in the completeness do come up.
One example is in importing data. A primary …
Using SAS Enterprise Guide to run programs in batch
SAS Enterprise Guide is best known as an interactive interface to SAS, but did you know that you can use it to run batch-style programs as well?
SAS Enterprise Guide has always offered an automation object model, which allows you to use scripting…
To attach() or not attach(): that is the question
R objects that reside in other R objects can require a lot of typing to access. For example, to refer to a variable x in a dataframe df, one could type df$x. This is no problem when the dataframe and variable names are short, but can become burdensom…