The class TVector offers some of the more important procedures for processing real-valued vectors. It hides all stuff dealing with array addressing and memory management. Thus, the user may fully concentrate on his/her work with vectors. Please note, that TVector is not a package for vector analysis. It is just a class which supports the handling of multidimensional data ('vectors') - although some common procedures of fundamental vector analysis are included.
The class TVector offers the following routines:
- filling of vectors
- copying of vectors
- addition and subtraction of vectors
- vector multiplication (scalar and dot product)
- normalization of vectors
- determination of minimum and maximum values
- calculation of mean values, variance and other statistical parameters of the vector elements
What's new:
- Release 9.0 [May-28, 2007]
- new methods StoreOnFile and LoadFromFile implemented
- new property IsEmpty implemented
- Release 8.5 [Feb-18, 2006]
- bug fix: method Percentile now calculates correct values (bug emerged only for less than 100 selected elements)
- Release 8.2 [Nov-03, 2004]
- bug fix: SortElems of TIntVector is again available (has been discarded by mistake)
- Release 8.1 [Aug-29, 2004]
- available for Delphi™ 8 for .NET
- Release 8.0 [Apr-15, 2004]
- TVector and TIntVector are now components (no longer inherited from TObject)
- new method Correlate implemented
- property DataID is now published
- NrOfElems is no longer read-only and published
- Release 7.2 [Mar-23, 2003]
- VECTOR is now part of MathPack
- TVector and TIntVector are now components (no longer inherited from TObject)
- NrOfElems is no longer read-only and published
- property DataID is now published
- Release 7.0 [Sep-15, 2002]
- available for Delphi™ 7.0
- the unit is now CLX compatible
- Percentile function implemented
- Release 6.5 [May-28, 2002]
- available for C++Builder™ 6.0
- bug fix: indexes of vector elements are handled using integer variables (instead of word)
-
Release 6.0 [Aug-06, 2001]
- available for Delphi™ 6.0
- new method SkewKurtSample of class TVector and TIntVector implemented
-
new methods GeometricMean and HarmonicMean implemented
-
Release 5.5 [May-01, 2000]
-
available for C++Builder™ 5.0
-
Release 5.0 [Oct-07, 1999]
-
VECTOR is now available for Delphi™ 5.0
-
Release 1.8 [Mar-24, 1999]
- VECTOR is now available for C++Builder™ 4.0
- method Clone implemented
- method Resize now does not execute if the new dimensions are equal to the old ones
- method SortElems implemented
-
property Elem is now default property
-
Release 1.7 [Aug-17, 1998]
- VECTOR is now available for Delphi™ 4.0
- method Histogram implemented (TVector)
-
bug in documentation concerning Quartiles fixed
-
Release 1.6 [Apr-09, 1998]
- VECTOR is now available for all versions of Delphi™ (1.0, 2.0, 3.0), and for C++Builder™ (1.0 and 3.0)
- class TIntVector implemented
- ESDLVectorError implemented (formerly ELocompError of DCOMMON)
- DCommon no longer needed
- OnChange event implemented new method
- Changed implemented
- method Quartiles implemented
- create now initializes vector to zero elements
- method Sum implemented
-
bug fixed which caused strange behavior for zero or negative vector dimensions
on create
-
Release 1.5 [May-28, 1997]
- VECTOR is now available for all three versions of Delphi™ and for C++Builder™
- bug fix: destroy was not declared as "override" --> resulted in memory allocation problems with "Free"