Reproducible Reporting with Quarto and SAS

library(SASmarkdown)

Components

Code

This is just a basic example of a SAS code block.

proc means data=sashelp.class;
run;

                            The MEANS Procedure

 Variable    N           Mean        Std Dev        Minimum        Maximum
 -------------------------------------------------------------------------
 Age        19     13.3157895      1.4926722     11.0000000     16.0000000
 Height     19     62.3368421      5.1270752     51.3000000     72.0000000
 Weight     19    100.0263158     22.7739335     50.5000000    150.0000000
 -------------------------------------------------------------------------

As you can see the output is just display here.

One interested we can do is to pass data between code chunks. Lets say the first code block is a DATA cleaning step, explaining how we calculated a new variable. Specify the collectcode chunk option to have this DATA step “carry over” in (all of) the following code blocks.

This is written as:

data class;
  set sashelp.class;
  bmi = 703*weight/height**2;
run;

Next, we have a separate code block that uses the data. This is just a plain SAS code block.

proc means data=class;
  var bmi;
run;

                            The MEANS Procedure

                         Analysis Variable : bmi 
 
     N            Mean         Std Dev         Minimum         Maximum
    ------------------------------------------------------------------
    19      17.8632519       2.0926193      13.4900007      21.4296601
    ------------------------------------------------------------------

HTML Plots

ods html5 style=htmlblue;
proc corr data=sashelp.class plots=matrix;
run;

3 Variables:	Age Height Weight

Simple Statistics
Variable	N	Mean	Std Dev	Sum	Minimum	Maximum
Age	19	13.31579	1.49267	253.00000	11.00000	16.00000
Height	19	62.33684	5.12708	1184	51.30000	72.00000
Weight	19	100.02632	22.77393	1901	50.50000	150.00000

Pearson Correlation Coefficients, N = 19 Prob > |r| under H0: Rho=0
	Age	Height	Weight
Age	1.00000	0.81143 <.0001	0.74089 0.0003
Height	0.81143 <.0001	1.00000	0.87779 <.0001
Weight	0.74089 0.0003	0.87779 <.0001	1.00000

SAS Logs

SAS is unusual software in that it generates two distinct output streams. In addition to the typical tables and graphs (in a variety of formats, including text and html), SAS echos your code and writes notes and messages in a separate log file. These are important so lets include that here.

2          proc means data=sashelp.class;
3          run;

NOTE: There were 19 observations read from the data set SASHELP.CLASS.
NOTE: The PROCEDURE MEANS printed page 1.
NOTE: PROCEDURE MEANS used (Total process time):
      real time           0.04 seconds
      cpu time            0.04 seconds
      

                            The MEANS Procedure

 Variable    N           Mean        Std Dev        Minimum        Maximum
 -------------------------------------------------------------------------
 Age        19     13.3157895      1.4926722     11.0000000     16.0000000
 Height     19     62.3368421      5.1270752     51.3000000     72.0000000
 Weight     19    100.0263158     22.7739335     50.5000000    150.0000000
 -------------------------------------------------------------------------