The SAS hash object is a feature in the SAS programming language that allows storage of a dictionary-like object in memory. Typically it is used to perform fast lookups when matching data between two different sets of data based on a common key (although it has many other uses).
Questions tagged [sas-hash]
4 questions
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Look-up within same data and multiple variables with SAS hash
I have a dataset as can be generated with Below code.
data have;
infile DATALINES DLM='|' DSD MISSOVER ;
input (VarA VarB) ($) ord;
datalines;
YY|PP|3
XX|YY|2
|XX|1
|BB|1
BB|AA|2 …
Priyesh Sura
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Dynamically define a SAS hash
So here is the problem.
I have a dataset and for each record, depending on a criteria, I want to load a different hash. I do not know the exact hash structure for each hash I will be loading during runtime. So I want to be able to execute the…
SAS2Python
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Passing hash object as FCMP parameter
proc fcmp functions allow passing hash objects as parameters. The documentation is a little vague and it doesn't mention whether or not this ability is restricted to calls from other fcmp functions or if it's allowed from a data step call as…
Robert Penridge
- 8,424
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SAS Hash Objects to track the history/relationships of ID changes across time
I have ID's as of today and the history of ID changes. I want to know what the ID most recent ID is and all the ID's associated with it at certain specified historical asof dates; and also have a count of the number of times the ID has changed.
The…
Reza
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