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What is New in SAS 9.2? Graphics and More. A Brief History of SAS Graphics. 6.x 7.x = had the Output Delivery System (ODS) but it was not widely available 8 .x = ODS Pretty tabular output in popular formats: HTML Driven by style and information templates Bad graphics

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What is new in sas 9 2 graphics and more

What is New in SAS 9.2?Graphics and More


A brief history of sas graphics
A Brief History of SAS Graphics

  • 6.x

  • 7.x = had the Output Delivery System (ODS) but it was not widely available

  • 8 .x = ODS

    • Pretty tabular output in popular formats: HTML

    • Driven by style and information templates

    • Bad graphics

  • 9.1.x = Experimental ODS graphics

    • Templates for graphics

  • 9.2 = Production ODS graphics


Ods graphics
ODS Graphics

  • Many procedures now have high quality graphics built into them. Turn on the graphics, then perform your favorite procedure and then turn off the graphics.


The default ODS destination is listing, that is, ugly text with no imbedded graphics.



Types of images
Types of Images 9.2.

  • The default formats of the images are determined by the ODS destinations you are using:

    • LISTING: pgn visible in the Windows Image Fax Viewer

    • HTML: png, gif, jpg contained in web pages and visible in Internet Explorer, Firefox or Opera

    • LATEX: PostScrpt, epsi, gif, jpeg, pgn are visible in GhostView

    • PCL or PS: contained in Postscript file are visible in GhostView

    • PDF: contained in pdf, which is visible with Adobe Reader

    • RTF: visible in MS Word


I typically use html
I Typically Use HTML 9.2.

This is the appearance template. For optimal results use:

Analysis: color

Default : overdistinguishes symbols for color or B&W

Journal or journal2, etc: black and white

Statistical or statistical2, etc: color

Include image_dpi = 200 to set the resolution to be higher than the default 100 dots per inch. Try 200 for final images pasting into MS Office.

This says the images should show tooltips with extra statistical details when you hover the mouse over parts of the graphic. (I can’t image these.)


Useful ods graphics options
Useful 9.2.ods graphics Options

  • After the ods graphics on statement, type a / then:

    • imagename = “fileName”

    • reset

      • resets the counter of images back to 0.

    • imagefmt = jpg

    • width = 4.5 in

    • height = 4.5 in

      • If you set only width or height, it will use a 4:3 aspect ratio.


Specialized plots
Specialized Plots 9.2.

  • Most analysis procedures now have customized high resolution graphics. Some are automatically produced if you type ods graphics on.

  • Proc Freq

    • I wanted a deviation plot for a 2x2 (or really any sized table) showing which cell is driving a significant chi-square. They only give you a plot for a one-way table.

    • The ORPlot is very nice.




Statistical graphics editor
Statistical Graphics Editor 9.2.

  • Turn on the Statistical Graphics Editor with the command sgedit on and run your code. This enables the “Edit” menu item.


Wysiwyg editing
WYSIWYG Editing 9.2.

  • Right click and/or double click to set properties for objects in the plot.

The tool is optimized for some of the ODS style templates but you can use custom colors.



Proc univariate
Proc Univariate 9.2.

  • Proc univariate in 9.2 does not support a plot statement. You specify which plots you want by typing commands like in SAS 9.1.3 and it ignores all the old style details if ODS graphics are turned on.



Too many graphics
Too Many Graphics 9.2.

  • If the ods graphics on statement gives you too many graphics, you can specify which graphics you want by including code designed for the procedure. Typically it looks like this: plot(only) = (table names). This design is poorly implemented because you need to know where to put the plot statement and what the table names are. Does it go on the proc line (like phreg), the tables line (like proc freq), or some other line? Also the table names specified with a plot statement do not always match the ODS table names.


Usually you can use an ODS exclude statement or an ODS select statement to pick the correct things to print.


Proc phreg select statement to pick the correct things to print. has a lot of new features but nothing major in the graphics. With phreg, if you specify ods graphics on you do not automatically get any plots. Here I request survival and cumulative hazard plots including the global confidence limits option (cl).

Once again the option names are not consistent with the table names.


Proc select statement to pick the correct things to print.lifetestcan show the number at risk but

the implementation is weak. It labels the groups with numbers even if the strata are character strings. You have to manually edit them and this affords ample opportunity for mistakes.

I don’t see a way to change the censoring symbol in the legend.


Splitting a grid
Splitting a Grid select statement to pick the correct things to print.

  • Some procedures produce a grid of plots. You can get access to the individual plots by specifying plots(unpack). Then you can use plots(only)=tableName to get just the right parts.

  • ODS select or exclude statements will not work.


New graphics s tatistical g raphics procs
New Graphics select statement to pick the correct things to print.Statistical Graphics Procs

  • proc sgPlot

    • general plot

    • replaces gplot!

  • proc sgScatter

    • lots of tools for scatterplots and scatter matrices

  • proc sgPanel

    • quick and easy trellis/lattice/matrix/panel of plots

  • Proc sgRender

    • used with proc template to make totally custom plots

    • Replaces greplay!


Proc sgplot
proc sgPlot select statement to pick the correct things to print.

  • Basic plots

    • scatter, series, band, needle

  • Fits and confidence bounds

    • loess, regression, penalized b-splines, ellipse

  • Distributions

    • boxplots, histograms, normal curves, kernel density

  • Categorization

    • dot plots, bar charts, line charts

From Heath 2007. SAS/Graph procedures for creating statistical graphics


As you add more requests to the plot, it resizes and shifts things to make room. It draws them in the order you request them. It reads the requests from the first listed to the bottom. Change the order if you want to have an item appear layered on top of, or behind, another thing.

Some colors are not set yet in the enhanced editor. Use the menu Tools>Options>Enhanced Editor… then click User Defined Keywords to add the coloring.



Grids
Grids put the categories in order.

  • You can produce lattices full of graphics with proc gpanel.


Spaghetti plots
Spaghetti Plots put the categories in order.

Data from Singer and Willett: www.ats.ucla.edu/stat/examples/alda.htm


Other newish stuff
Other Newish Stuff put the categories in order.

  • Statistics

    • Look at the Bayesian Statistics in GENMOD, LIFEREG, and PHREG. Also, explore proc MCMC.

    • Proc GLMSELECT has lasso selection (instead of automatic stepwise methods).

  • SAS Stat Studio – The ugly old interactive Analyst menu is now its own application.

    • Click and drag on points in one plot and they are highlighted in all plots and the dataset.


Stat studio
Stat Studio put the categories in order.


Sas power and sample size
SAS Power and Sample Size put the categories in order.


Learn more as needed
Learn More as Needed put the categories in order.

  • SAS/STAT 9.2 User's Guide Introductory and Common Chapters SAS/STAT 9.2

    support.sas.com/documentation/onlinedoc/stat/index_chapter.html

    • Using the Output Delivery System

    • Statistical Graphics Using ODS

  • I have all the conference presentations on ODS graphics.


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