version 20200703

info about available packages

packages/README.md

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+## Available packages:
+Currently the following packages are available:
+
+- **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.
+```
+data class;
+  set %SQL(select * from sashelp.class order by age);
+run;
+```
+
+- **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.
+
+- **macroArray**\[0.3\], implementation of an array concept in a macrolanguage, e.g. 
+```
+  %array(ABC[17] (111:127), macarray=Y); 
+
+  %do i = 1 %to 17; 
+    %put &i.) %ABC(&i.); 
+  %end;
+
+  %let %ABC(13,i) = 999; /* i = insert */
+
+  %do i = 1 %to 17; 
+    %put &i.) %ABC(&i.); 
+  %end;
+```
+
+- **BasePlus**\[0.5\] adds a bunch of functionalities I am missing in BASE SAS, such as:
+```
+call arrMissToRight(myArray); 
+call arrFillMiss(17, myArray); 
+call arrFill(42, myArray); 
+
+rc = delDataset("DataSetToDrop"); 
+
+string = catXFn("date9.", "#", myArray);
+
+format x bool.;
+
+%put %getVars(sashelp.class, patern = ght$, sep = +, varRange = _numeric_);
+```
+
+- **dynMacroArray**\[0.2\], set of macros (wrappers for a hash table) emulating dynamic array in the data step (macro predecessor of DFA)
+
+### ======