Data Visualization

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Data Visualization
Sanjay Matange 0
Broken Y-Axis with SAS 9.2

In the previous post on Broken Y-Axis, I reviewed different ways to display data as a Bar Chart, where the response values for some categories are many orders of magnitude larger than the other values.  These tall bars force  the display of other values to be squeezed down thus making it harder to compare

Data Visualization
Sanjay Matange 0
Broken Y-Axis

Often we want to display data as a bar chart where a few observations have large values compared to the rest.  Comparison between the smaller values becomes hard as the small bars are squeezed by the tall bars.  Here is an example data, and a bar chart showing the data. The large values

Data Visualization
Sanjay Matange 0
PharmaSUG 2012 update

PharmaSUG 2012 conference drew to a close today, concluding two and a half days packed with papers, presentations, posters, hands-on demos and super demos by SAS staff.  While the weather outside was a bit chilly from time to time, the conference what hopping with many user papers on how to

Data Visualization
Sanjay Matange 0
Axis values and hint

Getting the axis values just right generally requires some work, and the values you want can change from case to case.  One such example was discussed by Dan Heath in his post on custom axis values.  Here Dan shows the usage of non uniform axis values using the VALUES option on

Data Visualization
Sanjay Matange 0
Just a legend, please

Recently, an interesting question was posed on the previous article on this blog by a reader.  Can we use the new DiscreteAttrMap feature to create just a legend with specific entries, with no graph.  The question was intriguing enough that I did not wait to ask - "Why?".  I just got

Data Visualization
Sanjay Matange 0
Bar chart on interval axis

Recently, a user asked about creating a Bar Chart of Value by Date, where the dates are displayed on a scaled interval axis.   Consider this simulated data set of value by date and treatment shown below.  This data set only has one value for each date and treatment combination. We can use the VBAR statement

Data Visualization
Sanjay Matange 0
Simpler is better

A recent article in the SAS and R blog was about current winter temperatures in Albany, NY.  The temperature data for the recent winter (Dec 2011 - Mar 2012) was plotted on a polar graph. Robert Allison posted an article on displaying the same data as a Polar Graph using SAS/GRAPH .  Here is his

Data Visualization
Sanjay Matange 0
Bar-Line graph

A user recently posted a question in the SAS communities forum about  how to best display two measures by one classifier using a Bar-Line graph, where the scale of the two measures is vastly different.  This got me thinking about various different ways to represent such data.  Here are some of my thoughts,

Data Visualization
Sanjay Matange 0
Cluster groups

The topic of cluster groups comes up often.  By cluster group I am referring to the feature in bar charts where the group values are displayed side by side. With SAS 9.3, SG Procedures support stack or cluster grouping for Bar Charts and overlay or cluster grouping for all other

Data Visualization
Sanjay Matange 0
Let them eat pie

ODS Graphics system was initially motivated by the need for high quality graphs for SAS Base, STAT, and other analytical procedures.  Use of SG Procedures, ODS Graphics Designer and GTL by users too has initially focused on analytical graphs.  But just like wheels on carryon bags that started for the specific needs of flight

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