achoo - the flu, sas & you group...agenda achoo - the flu, sas & you 1. some like it cold...
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ACHOO - THE FLU, SAS & YOU
CHARU SHANKAR, SAS INSTITUTE CANADA
Health User Group Toronto
20 November 2015
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AGENDA ACHOO - THE FLU, SAS & YOU
1. Some like it cold -Ways to fight the flu
2. Data Collection
3. Data Analysis – a new tool in time for the holidays. DS2
4. Data Management – SAS Enterprise guide to prompt you.
5. Data Presentation – Get visual with a map
6. Handy Resources
7. Q & A
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WAYS TO FIGHT THE
FLUWHAT DO I DO?
• Diet
• Oil Pulling
• Yoga inversions
• Medication - Ginger lozenges
• And THEN… Educate myself..Get SAS Help
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DATA COLLECTION ACHOO - THE FLU, SAS & YOU
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DATA ANALYSIS HOW ABOUT A NEW TOOL? DS2
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DATA ANALYSIS DS2 OVERVIEW
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1. OBJECT BASED SYNTAX- USER DEFINED METHODS AND PACKAGES
PROC DS2;
data _null_;
method c2f(double Tc) returns double;
/* Celsius to Farenheit */
return (((Tc*9)/5)+32);
end;
method init();
dcl double Degc DegF;
do DegC=0 to 30 by 15;
DegF=c2f(DegC);
PUT DegC= DegF=;
end;
end;
enddata;
run;
quit;
Define method
Call method
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DS2 OVERVIEW 2. ANSI SQL DATA TYPE SUPPORT
EXTENDED DATA TYPES
BIGINT
BINARY(n)
CHAR(n)
DATE
DOUBLE
FLOAT(p)
INTEGER
NCHAR(n)
The syntax of the DS2
language intersects with the
SAS DATA step but also
includes additional data types,
ANSI SQL types, programming
structure elements, and user-
defined methods and packages
NVARCHAR(n)
REAL
SMALLINT
TIME(p)
TIMESTAMP(p)
TINYINT
VARBINARY(n)
VARCHAR(n)
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DS2 IS NOT A DATA STEP REPLACEMENT
DS2 Complements the DATA Step
DS2 has
•DATA and SET statements
•IF..THEN..ELSE, DO loops
•Expressions and Functions
•Future: Debugger
DS2 does not have
•INFILE and INPUT statement
•MERGE, UPDATE
•MODIFY / REPLACE
•POINT=
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BASIC DS2 SYNTAXPROC DS2;
data _null_;
method init();
dcl varchar(20) foo;
foo = '**> Starting';
put foo;
end;
method run();
set ds2_sas.banks;
put _all_;
end;
method term();
dcl char(11) bar;
bar = '**> I quit!';
put bar;
end;
run; quit;
Initial processing
Execution loop
Final processing
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3. EMBEDDED SQL IN DS2proc ds2;
data sales (overwrite=YES);
keep Customer_ID Total;
method run();
set {select c.Customer_ID
,Total_Retail_Price
from ds2_sas.order_fact f
full join
ds2_sas.customer_dim c
on f.Customer_ID=c.Customer_ID
order by 1};
by customer_id;
if first.customer_id then Total=0;
Total+total_retail_price;
if last.customer_id then output;
end; enddata;
run;quit;
Returns SQL
result set as input
stream
BY group
processing on
results
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DS2 WHY USE IT?
You will see the most benefit from DS2
1. When you need to use extended data types to maintain consistency with source
database
2. Where you have a complex process that could benefit from structured code. You
can make use of packages and methods to re-use common functions or operations.
3. Where you have computationally intense processes which can utilize parallel
processing.
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DATA ANALYSIS HOW ABOUT A NEW TOOL? DS2
• DS2 DEMO
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DATA MANAGEMENT PROMPTS IN SAS ENTERPRISE GUIDE
DO YOU LIKE TO BE PROMPTED?
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DATA
PRESENTATION
GET VISUAL
WITH A MAP
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HANDY RESOURCES LINKS & TRAINING
• SQL within SET Statement• Which Canadians get the Flu• Using Arrays in SAS Programming• I object: SAS Does Objects with DS2• Map code
Next dates for DS2 14-15 Dec 2015 • SAS Canada DS2 training
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THANK YOU
LINKEDIN: CHARU SHANKAR
TWITTER: CHARUYOGACAN
SAS BLOG: BLOGS.SAS.COM/CONTENT/SASTRAINING/AUTHOR/CHARUSHANKAR