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80 lines
2.1 KiB
Markdown
80 lines
2.1 KiB
Markdown
## SAS Packages:
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To get started with SAS Packages try this [**`Getting Started with SAS Packages`**](https://github.com/yabwon/SAS_PACKAGES/blob/master/SPF/Documentation/Getting_Started_with_SAS_Packages.pdf "Getting Started with SAS Packages") presentation (see the `./SPF/Documentation` directory).
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## Available packages:
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Currently the following packages are available:
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- **SQLinDS**\[2.1\], based on Mike Rhoads' article *Use the Full Power of SAS in Your Function-Style Macros*. The package allows to write SQL queries in the data step, e.g.
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```
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data class;
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set %SQL(
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select age, name, weight, height
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from sashelp.class
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order by age
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);
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WH = weight + height;
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run;
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```
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- **DFA** (Dynamic Function Arrays)\[0.2\], contains set of macros and FCMP functions which implement: a dynamically allocated array, a stack, a fifo queue, an ordered stack, and a priority queue, run `%helpPackage(DFA,createDFArray)` to find examples.
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```
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%createDFArray(ArrDynamic, resizefactor=17);
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data _null_;
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call ArrDynamic("Allocate", -2, 2);
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do i = -2 to 2;
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call ArrDynamic("Input", i, 2**i);
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end;
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L = .; H = .;
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call ArrDynamic("Dim", L, H);
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put L= H=;
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call ArrDynamic("+", 3, 8);
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call ArrDynamic("+",-3, 0.125);
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call ArrDynamic("Dim", L, H);
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put L= H=;
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Value = .;
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do i = L to H;
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call ArrDynamic("O", i, Value);
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put i= Value=;
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end;
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run;
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```
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- **macroArray**\[0.3\], implementation of an array concept in a macrolanguage, e.g.
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```
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%array(ABC[17] (111:127), macarray=Y);
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%do i = 1 %to 17;
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%put &i.) %ABC(&i.);
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%end;
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%let %ABC(13,i) = 999; /* i = insert */
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%do i = 1 %to 17;
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%put &i.) %ABC(&i.);
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%end;
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```
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- **BasePlus**\[0.53\] adds a bunch of functionalities I am missing in BASE SAS, such as:
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```
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call arrMissToRight(myArray);
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call arrFillMiss(17, myArray);
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call arrFill(42, myArray);
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rc = delDataset("DataSetToDrop");
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string = catXFn("date9.", "#", myArray);
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format x bool.;
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%put %getVars(sashelp.class, pattern = ght$, sep = +, varRange = _numeric_);
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```
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- **dynMacroArray**\[0.2\], set of macros (wrappers for a hash table) emulating dynamic array in the data step (macro predecessor of DFA)
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