October 20, 2006

Octave-forge reorganized as a series of packages for use with +the Octave package manager. See the packages for more details

July 09, 2006

Octave-forge version 200607008 released. This version version +was the last monolithic release and the first release that only +supported version of octave later than Octave 2.9.

An abbreviated list of changes is:

purge functions moved to Octave and remove pre-2.9.x support.
comm: new functions pam/genqam/psk mod/demod
combinatorics: new functions for integer partitions
geometry: fix qhull problems (finally!?)
signal: new function square to generate square waves
statistics: new function hmm viterbi/generate
strings: remove regexp; api changed when moved to Octave
linear-algebra: new function for gsvd
general bug fixes and improvements

March 16, 2006

Octave-forge version 20060316 released. An abbreviated list of +changes is:

statistics/regress: new function
general bug fixes and improvements

January 28, 2006

Octave-forge version 20060128 released. An abbreviated list of +changes is:

audio/waveread: big-endian fix; 2-channel file fix
comm/galois: fix rank calculation for galois array
general/interp2: cubic interpolation
image/: return MxNx3 matrices of appropriate numeric class
io/textread: faster
io/dlmwrite: control precision and line separator; allow append
miscellaneous/mfilename: compatibility function
miscellaneous/listen: subnet patterns; loopback support
NaN/xcovf: missing data xcorr
octcdf/: support for netcdf files
optim/wpolyfit: return row vector; allow centering and scaling
plot/legend: fix error on first call
plot/print: add PDF option
signal/residued,residuez: partial fraction expansion of filters
signal/qp_kaiser: PPN filter bank coefficients
statistics/histfit: allow negative data
statistics/mvnpdf,mvnrnd: multivariate normal distribution
tsa/: improved speed, style and docs
tsa/amarma: adaptive mean ARMA modeling
tsa/y2res: add entropy estimation; add equidistant quantisation
tsa/mvfreqz: add PDCF
support for 2.9.4
support for 64-bit indexing
support for MinGW build
general bug fixes and improvements

June 13, 2005

Octave-forge version 20050613 released. An abbreviated list of +changes is:

textread now returns cell arrays
use new gnuplot interface for functions
fix rand bug on non-intel architectures
more econometrics functions
new functions: randg, cellfun, cell2mat, bwarea, imresize, savepath
bug fixes and improvements

November 16, 2004

Octave-forge version 20041116 released. Extends support to Octave 2.1.62. +An abbreviated list of changes is:

initial econometrics toolbox
updated protein databank (extra/pdb) functions
new functions: wavread wavwrite hann strfind randp sprandn conv2nan
many bug fixes and improvements

September 07, 2004

Octave-forge version 20040907 released. Extends support to Octave 2.1.58. +An abbreviated list of changes is:

Base

getfield/setfield now have a compatible interface; for the + old behaviour, use setfields/getfields.
Fill full 53-bit mantissa with the random number generators; new + sequences will be different from old sequences with the same + seed.
Removed restrictions on datenum/datevec and added + calendar/eomday
Added nthroot to return real root if available
Added isa to test for class membership
clf resets to line graphs
Quiver plot is faster and no longer requires clf
Added audio playback on OS X

Image processing

Initial support for int* types.
Added dilate erode bweuler bwmorph houghtf stretchlim + makelut applylut uintlut padarray roicolor poly2mask + qtdecomp qtgetblk qtsetblk bestblk blkproc nlfilter + cmunique cmpermute col2im im2col graycomatrix conndef isrgb

Optimization

Replacement fzero using Brent's root finder

Communications:

Support for concatenation operator [] on galois type
Reduce restrictions on bchpoly syndtable

Signal processing:

Added flattopwin
fir1/fir2 have more flexible argument handling

Sparse:

Load/save support
Support for concatenation operator []
Added pcr for preconditioned conjugate gradient

Statistics:

Added histfit pareto tabulate anderson_darling_cdf + anderson_darling_test

July 07, 2004

Octave-forge version 20040707 released. Extends support to Octave 2.1.57. +An abbreviated list of changes is:

The optimization functions have been replaced but the new interface + is not yet settled. See the files in the optim directory.
New package gsl: GNU Scientific library bindings.
New package fixed: Fixed point numeric operations.
New functions: polyconf wsolve fullfact pcg princomp filtic + rande azimuth deg2rad rad2deg distance zoom inputname fnval + fftconv2 mvaar
Bug fixes everywhere they are found.

February 11, 2004

Octave-forge version 20040211 released. Extends support to Octave +2.1.53 for all oct-files. Improved build environment and better +testing. We still need more tests! If you need a function and don't +see any test cases in it, add some and send them our way. See +'help test' for details. An abbreviated list of changes is:

Changes

rand/randn: generates a different random number sequence + from before.

New functions

anovan: analysis of variance
append_save: add a variable to a save file
assert: now supports structure arrays and cell arrays
BFGSMin: alternative to bfgs minimizer
conv2nan: 2-D convolution which ignores missing data
convhull/convhulln: now allows direct control of qhull + parameters
csape: support n=3 case --- need to verify it is correct
dxfwrite: output plot to DXF format (AutoCAD)
fail: checks if code fails with a given error message
galois: load/save support
gpick: alternative to ginput
imread: now supports 16-bit grayscale
irsa_*: irregularly sampled data analysis functions
map: apply a function across all elements of a cell array
mex: initial support for structures
pngread/pngwrite: direct access to libpng
quadl: improved adaptive quadrature routine
rand/randn: faster and now supports for nD arrays
sort: fast sort based on python's timsort
sprandn: random sparse matrix filled with normally + distributed values
str2double: convert string to double
struct: now creates structure arrays
toggle_grace_use: use grace plotting package rather than gnuplot
xmlwrite: save data to xml format

Plus the usual bug fixes and documentation updates.

June 02, 2003

Octave-forge version 20030602 released. For Octave 2.1.36 and up. +An abbreviated list of changes is:

Extended support backward to octave 2.1.36 and forward to octave 2.1.49 + for all oct-files. Some scripts make use of features only available in + more recent versions of Octave.
Communications:

sqrt over Galois field
BCH code, modulator
bug fixes and documentation improvements

Image:

added rotate_scale()

Optimization:

added Nick Higham's adsmax, mdsmax nmsmax for fmins
lp() fix range error

Plotting:

surf()/surfc() support gnuplot 3.8i shaded surfaces
added peaks()
legend() inside/ouside/boxon/boxoff/right/left
Signal Processing
added freqs, invfreqs, invfreqz
return statespace and laplacian IIR filters (butter, cheby1, + cheby2, ellip)
fixed aryule() to return the correct filter +

Statistics:

added normplot()
scatter() optimization

Sparse:

added concatenation functions spvcat() and sphcat()

added poly2sym, sym2poly, numden, findsymbols, findsym, symlsolve, + symfsolve, syminfo
subs() accepts cell arrays

TSA/NaN:

many bug fixes and documentation improvements

Miscellaneous:

added cellstr()
fieldnames() now returns cell array
listen() bugfixes
ellipke() supports m < 0
deal() now supports [a,b] = deal(b,a)
dlmread() converted to C++ for speed and more flexible input

administration:

target specific build instructions (MacOSX, windows, Irix)

February 22, 2003

Octave-forge version 20030222 released. An abbreviated list of +changes is:

Updates for octave 2.1.45
Parallel: Light weight parallel programming added but + flagged NOINSTALL.
Communications: add galois field functions and others
Signal Processing: add convmtx and dftmtx
Geometry: add (poor) griddata/tsearch support --- please improve!!
VRML: new options 'z(grey|rb|col)' for vmesh() and + vrml_surf(). Fixes and improvements to many functions.
NaN: enhanced cov/covm, NaN arithmetic fixes
TSA: bug fix (matlab 5.3 bug)
Sparse: add spstats and x.^a, more robust
Base functions: add fileparts, filesep, char, dos; improve dlmread
Function overloading: dispatch() lets you call tf rather + than f if the first argument to f is t.
Octave server: listen() sets up a socket to receive octave + commands from a particular host --- please improve!!
Many fixes, compatibility improvements and better Windows support.

November 30, 2002

Octave-forge version 20021130 released. For Octave 2.1.40. An +abbreviated list of changes is:

New functions

general/ndims: compatibility function
image/imginfo: determines size of image using 'convert'
image/colfilt: image block filtering function
image/im{rotate,translate,shear}: image transformations
miscellaneous/inline: generate a function from an expression
miscellaneous/slurp_file: loads a file into a string
miscellaneous/{rotv,rotparams}: parameterize 3D rotation + matrices
plot/contour.f: filled contours
sparse/{sprand,spdiags,issparse}: sparse functions
specfun/lambertw: Lambert's W function: x=w(x)*exp(w(x))
specfun/betaln: log beta
splines/pchip: Piecewise Cubic Hermitian Interpolating + Polynomial
statistics/{boxplot,scatter}: statistical plots
symbolic/{cheb,chebwin}: Dolph-Chebyshev windows
vrml/vmesh: 3D visualization of a surface
vrml/*: represent and show 3D objects as VRML code (needs + FreeWRL)

Extended interfaces

audio/au{load,save}: support floating point .wav formats
image/colorgradient: allow instantaneous transitions (weight 0)
optim/wpolyfit: option to fit through origin
signal/{ellip,ellipord}: compatible interfac
sparse/spy: accept dense matrices
strings/mat2string: accept [] and complex
symbolic/*: relational operators
time/datestr: more format codes; handle vectors of + dates

Changed interfaces

image/bwlabel: C++ version---may be different from m-file + interface
extra/ode: moved from v1.06 to v1.14
optim/*: unified interface supporting options
optim/wpolyfit: don't return yf
optim/wpolyfit: return row vectors for compatibility with + polyfit
signal/nellip: replaced by ellip, ellipord
OCTAVE_FORGE_VERSION is now an ordered integer: yyyymmdd
FIXES/fsolve: removed because it hasn't been updated to 2.1.40

extra/tsa

significance test and confidence intervals for PACF
added histogram functions for multicolumn data
support for new releases of octave and matlab
bug fixes

extra/NaN

added TRIMEAN, NORMPDF, NORMCDF and NORMRND
extended NANTEST
significance test and confidence intervals for CORRCOEF
faster RANKS
support for new releases of octave and matlab

Internal changes

extra/symband: eigenvector bug removed
io/dlmread: returned matrix was transposed
general/rat: display 1/0 for infinity
plot/ginput: m-file version based on grab.cc
plot/legend: give gnuplot time to respond to parameter request
signal/{buttord,fir1}: bug fixes
sparse/spy: prettier graph
gcc 3.2 updates
octave 2.1.40 updates
remove functions and fixes that are now in octave

Administration

vrml/doc: LaTeX tutorial on 3D visualization tools
Octave for Windows FAQ updates
INSTALL.WINDOWS installation notes
support for static build under Windows

May 09, 2002

Octave-forge version 20020509 released. This is a bug fix release. +Many thanks to the good folks at Debian for finding the portability +problems. An abbreviated list of changes is:

New functions

miscellaneous/OCTAVE_FORGE_VERSION
extra/tsa/durlev
strings/base64encode
signal/guasswin
image/colfilt

Changes

audio/sound: uses ssh rather than rsh for remote audio
testfun/assert: use tol>0 for relative error, tol<0 for + absolute err
optim/bfgs: new interface
optim/minimize: ndiff, jac, hess and ihess options
NaN/sumskipnan: additional outputs
NaN/*: bug fixes

Bug fixes

signal/triang: for n=2, peak=1 at the virtual center of + the window
signal/gaussian: now returns a symmetric window
now compiles on most Debian systems which support Octave.
updated doc strings, tests +

Administration

make check and make icheck added. Only supports the compiled + functions at the moment, but it is a start. +