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Data Visualization

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Data Visualization

Sanjay MatangeJanuary 14, 2015 4

Marker Symbols

There has been much discussion on the SAS Communities page on usage of different symbols in a graph. The solutioin can vary based on the SAS release. New features have been added at SAS 9.4 releases to SG Procedures and GTL that make this very easy. With SAS 9.4M1, almost any combination is

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Data Visualization

Sanjay MatangeJanuary 3, 2015 4

Custom Labels

Over the Christmas Holidays I saw an graph of agricultural exports to Russia in 2013. The part that caught my eye was the upper part of the graph, showing the breakdown of the trade with Russia as a horizontal stacked bar with custom labels. The value for each region / country

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Data Visualization

Sanjay MatangeDecember 27, 2014 2

Scatter Plot with Stacked Histograms

Last week a user expressed the need to create a graph like the one shown on the right using SAS. This seems eminently doable using GTL and I thought I would undertake making this graph using SAS 9.3. The source data required to create this graph is only the

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Data Visualization

Sanjay MatangeDecember 17, 2014 2

Dual Response Axis Graphs

Often we need graphs that display two or more responses by the same category values. In many cases it is useful to plot both responses on the same response (Y) axis. This can be helpful to understand the data and compare the magnitudes side by side. This works when the scales

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Data Visualization

Sanjay MatangeDecember 6, 2014 3

Graph Table

A common scenario is where we have a table of multiple measures over time. Here we have a simple example of Frequency and Response by Day. The Response is a linear function of the Frequency, as shown in the table on the left below. The shape of the data is

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Data Visualization

Sanjay MatangeNovember 25, 2014 0

Fun with Bar Charts

As Sheldon Cooper would say, this is the first episode of "Fun with Charts". I did not find a cool term like "Vexillology" and "Cartography" is taken by map making, so let us go with "Chartology". Yesterday, I saw a couple of interesting bar charts as shown on the right. I thought

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Data Visualization

Sanjay MatangeNovember 18, 2014 3

Axis Break Appearance Macro

Often, we have data where most of the observations are clustered within a narrow range, with a few outliers positioned far away. When all the data is plotted, the axis is scaled to accommodate all the data, thus skewing the scale. Techniques to handle such data have been addressed earlier

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Data Visualization

Sanjay MatangeNovember 15, 2014 5

Clinical Graphs

This week I had the opportunity to present a 1/2 day seminar on creating clinical graphs using the SG procedures during an In-House SAS Users' group meeting. I have presented this seminar quite a few times now, and I always learn something. The audience was very receptive, with some people

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Data Visualization

Sanjay MatangeNovember 6, 2014 1

Axis Thresholds

Have you ever wondered why sometimes a SGPLOT or GTL graph has markers drawn beyond the extreme tick and value on an axis and sometimes not? And, if you prefer your graphs to always have tick values on the axis that cover the whole range of data, how can you

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Data Visualization

Sanjay MatangeNovember 2, 2014 8

Bar with Statistics

One of the key benefits of using a horizontal bar chart is the ability to display statistics for each bar. This is a popular feature for the HBAR statement with the SAS/GRAPH GCHART procedure. So, let us review the options available to us to create such graphs using SGPLOT. The

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