PEAR: Latest releases for jmcastagnetto

Math_Complex 0.8.5

2004-04-13T16:43:04-05:00

Fixed bug in Math_ComplexOp::createFromPolar() (reported by Nicolas
Vollmar, nvollmar@ee.ethz.ch).
Made changes to the use of get_class(), it will now work equally well in PHP 4
and PHP 5. In PHP 4 that function returns all lowercase, in PHP 5 is
properly capitalized, using strtolower() to make it homogenous.
Added UML diagram for package and unit tests that use PHPUnit 1.0

Math_Matrix 0.8.5

2003-11-01T19:15:29-05:00

Fixed some bugs in matrix multiplication reported by John Pye
(john@curioussymbols.com) and Marcel Brunner (marcel@palmer.li).
Fixed some minor documentation incosistencies.

Modified the setData() method to accept a Math_Matrix object or
an array of arrays of numbers.
Added the setZeroThreshold() and getZeroThreshold() to set and get the
value used as upper bound to minimize round-off errors.
Added also two static methods to generate famous matrices:
Math_Matrix::makeHilbert() for a square Hilber matrix, and
Math_Matrix::makeHankel() for m by n Hankel matrix.
Reorganized the directories to comply to the current directory organization
proposal.
It is recommended to uninstall the older version of Math_Matrix (and
Math_Vector) before installing this new release to avoid lingering files
(there is also a new release of Math_Vector):
$ pear uninstall Math_Matrix Math_Vector
$ pear install Math_Vector
$ pear install Math_Matrix
Included explicitely the optional dependency on the PHPUnit package version
0.6.2 or older, as current versions of that package need PHP5.

Math_Vector 0.6.2

2003-11-01T19:12:48-05:00

Made the data in the constructor optional. Added setData() and
getData() methods to handle vector initialization.
Reorganized the directories for tests and documentation. It is
recommended to uninstall Math_Vector before installing this release
to avoid lingering files:
$ pear uninstall Math_Vector
$ pear install Math_Vector
Included explicit optional dependency on PHPUnit 0.6.2 or older. Newer
versions of PHPUnit require PHP5.

Math_Stats 0.9.0beta3

2003-06-12T11:46:00-05:00

Modified the productN() method to try and avoid numeric overflow, and in case
there is overflow to return an array of values to be multiplied, instead of
a single resulting value.

Changed also the geometricMean() method to work with the new productN() and
product() methods. Unit tests have been unaffected by the change.

Math_Stats 0.9.0beta2

2003-06-04T22:22:00-05:00

This is a bug fix release. Fixes (finally) an old bug in calculation of the
median. Users of any previous version are recommended to upgrade.

When I fixed a previous bug in the calculation of the median, I forgot to apply
the full fix, so it was calculating an erroneous value for data sets with an
odd number of entries.

Thanks to Diego Puga for pointing this out. It is good to get bug reports
when one is getting old and forgetful. ;-)

Math_Stats 0.9.0beta1

2003-06-03T02:03:00-05:00

This is a beta release that containes new not thoroughly tested methods and
algorithms.

Many changes in the existing methods, and a number of new ones:

- Added better error handling.
- Refactored existing methods to delegate calculations better
- Added value caching for invariant statistical parameters
- Added optional parameters to some existing methods to enhance their
processing or output. Preserve the original behaviour as default so
as not breack backwards compatibility
- Added new methods:
- center()
- studentize()
- range()
- geometricMean()
- harmonicMean()
- product()
- productN()
- percentile()
- quartiles()
- interquartileMean()
- interquartileRange()
- quartileDeviation()
- quartileVariationCoefficient()
- quartileSkewnessCoefficient()
- Added a unit test class based on PEAR::PHPUnit

Math_Stats 0.8.5

2003-05-27T23:35:00-05:00

Added methods sampleCentralMoment() and sampleRawMoment() to
calculate the corresponding nth moments of the data set.
Explicit casting of parameters passed to pow() to
circumvent the warnings/errors given by some versions
of the PHP interpreter. Thanks to Stephen Evans for
pointing this problem out.

Math_Matrix 0.8.0

2003-05-16T22:36:00-05:00

Initial released under PEAR. Reestructured the package so the main class
contains both instance and class methods to make things simpler.

Math_Stats 0.8.4

2003-05-16T22:17:00-05:00

Fixed problem in element selection for the calculation
of the median. Thanks to Jeff Hoover for finding this bug.

Science_Chemistry 1.1.0

2003-05-13T01:24:00-05:00

Modified the parsing algorithm for atom records in a residue
Added toXYZ() methods, and made toString() aliases of those
Added one more example for converting PDB to XYZ