Posts Tagged ‘ Uncategorized ’

Feeding the hungry, after a flood

April 26, 2017
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In the aftermath of a natural disaster, most people want to help by donating supplies, money, etc. And then it becomes a matter of logistics - getting all those donations to the people who need them. We recently had several days of rain and flooding in...
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Visualize a design matrix

April 26, 2017
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Visualize a design matrix

Most SAS regression procedures support a CLASS statement which internally generates dummy variables for categorical variables. I have previously described what dummy variables are and how are they used. I have also written about how to create design matrices that contain dummy variables in SAS, and in particular how to

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Using loops in your SAS graph code

April 25, 2017
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If you're a SAS programmer, you have likely used loops in your SAS code to make life easier from time to time. In this blog post, I demonstrate a few ways you can use loops to do clever things in your graph code. Perhaps even the old dogs can learn [.....
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Determining the size of a SAS data set

April 25, 2017
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When developing SAS® data sets, program code and/or applications, efficiency is not always given the attention it deserves, particularly in the early phases of development. Since data sizes and system performance can affect a program and/or an application’s behavior, SAS users may want to access information about a data set’s

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Will your next car be made in China?

April 24, 2017
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Building cars is towards the top of the manufacturing hierarchy - some countries are even known for the cars they build. If you want a good quality car, you probably think of Japan. If you want a stylish sports car, you probably think of Italy. If you ...
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Visualize an ANOVA with two-way interactions

April 24, 2017
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Visualize an ANOVA with two-way interactions

There are several ways to visualize data in a two-way ANOVA model. Most visualizations show a statistical summary of the response variable for each category. However, for small data sets, it can be useful to overlay the raw data. This article shows a simple trick that you can use to

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Your mapping toolkit tip #6 – Geocoding your addresses

April 21, 2017
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You've got a database containing the addresses of all your customers ... but how can you plot them on a map or analyze them spatially? First, you'll need to convert the address into a numeric coordinate (latitude & longitude). SAS can do that ... with Proc Geocode! But before we

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People using smartphones while driving – the numbers are in!

April 19, 2017
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You're sitting in a line of cars at the intersection, waiting for the light to change - when it finally turns green, the 2nd car just sits there for several seconds until someone honks at them, and then they scoot through the light  ... but everyone behind them has to

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