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Rick Wicklin 0
How to create a grid of values?

In a previous post, I described ways to create SAS/IML vectors that contain uniformly spaced values. The methods did not involve writing any loops. This post describes how to perform a similar operation: creating evenly spaced values on a two-dimensional grid. The DATA step solution is simple, but an efficient

Chris Hemedinger 0
SAS tops the list, again

I'm not even at work yet, but I've already learned that SAS has been ranked as the #1 workplace on the Fortune 100 list for 2011. SAS was also number 1 last year in 2010, and has been high on the list since its inception. I'm sure there will be

Programming Tips
Chris Hemedinger 0
Who am I to judge?

Tomorrow I'll be taking a few hours away from work to build something important: the self-esteems of a handful of middle-school-aged children. I'm volunteering as a judge in a middle-school science fair. And even though I'm not a scientist ("computer science" isn't a category), I understand enough about physical science

Advanced Analytics
Rick Wicklin 0
When sharks attack!

The Junk Chart blog discusses problems with a chart which (poorly) presents statistics on the prevalence of shark attacks by different species. Here is the same data presented by overlaying two bar charts by using the SGPLOT procedure. I think this approach works well because the number of deaths is

Advanced Analytics
Mike Gilliland 0
In Defense of Outliers

If outliers could scream, would we be so cavalier about removing them from our history, and excluding them from our statistical forecasting models? Well, maybe we would – if they screamed all the time, and for no good reason. (This sentiment is adapted from my favorite of the many Deep

Chris Hemedinger 0
This list goes to 11

It's almost 2011, so let's reflect on the top 11 posts (by number of visits in 2010) on this blog. Not all of these posts were written in 2010; in fact, some of these date back to 2007. But apparently they are oldies and goodies. 1. SAS 9.2 and SAS

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Rick Wicklin 0
The module that vanished

Recently, I needed to detect whether a matrix consists entirely of missing values. I wrote the following module: proc iml; /** Module to detect whether all elements of a matrix are missing values. Works for both numeric and character matrices. Version 1 (not optimal) **/ start isMissing(x); if type(x)='C' then

Chris Hemedinger 0
Blogs by SAS Community - Google Reader Bundle

Here is my published Google Reader bundle that contains all of the SAS- or analytics-related blogs that are maintained by customers or others in the SAS community (excepting those by SAS employees, for which I have a different bundle). Blogs by SAS Customers AFHood Analytics Group - Blogs AnnMaria's Blog

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