https://github.com/cran/pracma
Tip revision: 392ae21a013fb3f518e8f9eb8efb458a55a2eca2 authored by HwB on 09 April 2011, 00:00:00 UTC
version 0.3-0
version 0.3-0
Tip revision: 392ae21
NEWS
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pracma NEWS
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PLANNED IN NEXT VERSION
NEW FUNCTIONS
o Barycentric interpolation through barylag() and barylag2d().
CHANGES IN VERSION 0.3-0
OTHER CHANGES
o New version of news.Rd, news.pdf.
o More test functions for root finding and quadrature.
CHANGES IN VERSION 0.2-9
NEW FUNCTIONS
o fnorm() and the Runge function runge().
o contfrac(), rat(), and rats() for continuous fractions.
o meshgrid() and magic().
CHANGES IN VERSION 0.2-8
NEW FUNCTIONS
o quad() adaptive Simpson quadrature.
o Minimum finding with fibsearch() and golden_ratio().
o Root finding with newton(), secant(), and brentDekker().
CHANGES IN VERSION 0.2-7
NEW FUNCTIONS
o Regular expression functions regexp(), regexpi(), regexprep() and
refindall().
CHANGES IN VERSION 0.2-6
NEW FUNCTIONS
o String functions blanks(), strtrim(), deblank(), strjust(),
and strrep().
o interp1() one-dimensional interpolation (incl. spline)
CHANGES IN VERSION 0.2-5
NEW FUNCTIONS
o Matlab functions mode(), clear() and beep().
CHANGES IN VERSION 0.2-4
NEW FUNCTIONS
o primroot() finds the smallest primitive root modulo a given n;
needed functions are modpower() and modorder().
o humps() and sinc(): Matlab test functions.
o Root finding through bisection: bisect(), regulaFalsi().
o outlierMAD(), findpeaks(), and piecewise().
o polycnv() for polynomial multiplication.
OTHER CHANGES
o Functions extgcd(), gcd(), and lcm() have been renamed to extGCD(),
GCD(), and LCM() respectively.
CHANGES IN VERSION 0.2-3
NEW FUNCTIONS
o strfind(), strfindi(), and findstr().
o circlefit() fitting a circle to plane points.
o mldivide() and mrdivide(), emulating the Matlab backslash operator.
CHANGES IN VERSION 0.2-2
NEW FUNCTIONS
o vnorm() vector norm
CORRECTIONS
o Warning about a nasty "non-ASCII input" in the savgol.RD file
has been resolved.
CHANGES IN VERSION 0.2-1
NEW FUNCTIONS
o horner() implementing the horner scheme for evaluating a polynomial
and its derivative.
o savgol() Savitzki-Golay smoothing and needed pseudoinverse pinv().
RESTARTED AS VERSION 0.2-0
NAME CHANGE
o Package renamed to 'pracma' to avoid name clashes with packages
such as 'matlab' that are sticking closer to the original.
OTHER CHANGES
o Added 'pracma-package' section to the manual.
CHANGES IN VERSION 0.1-9
NEW FUNCTIONS
o reshape(), repmat(), and blkdiag() matrix functions.
o combs() chooses all combinations of k elements out of n, and
randcomb() generates a random selection.
o perms() generates all permutations, randperm() a random permutation.
o Pascal triangle as pascal(); nchoosek() returns binomial coefficients.
o Some string functions: strcmp(), strcmpi(), strcat().
CHANGES IN VERSION 0.1-8
NEW FUNCTIONS
o std() as refinement of the standard deviation function.
o ceil() and fix() as aliases for ceiling() and trunc().
[floor() and round() already exist in R.]
o Modulo functions mod(), rem() and integer division idiv().
o Integer functions related to the Euclidean algorithm:
extgcd(), gcd(), lcm(), coprime(), and modinv().
o distmat() and crossn(), the vector product in n-dimensional space.
CHANGES IN VERSION 0.1-7
NEW FUNCTIONS
o size(), numel(), ndims(), isempty(), and find().
o eye(), ones(), zeros().
o Functions returning random numbers: rand(), randn(), randi().
o linspace(), logspace(), and logseq() for linearly, logarithmically,
and exponentially spaced sequences.
CHANGES IN VERSION 0.1-6
NEW FUNCTIONS
o Matrix functions mdiag() and mtrace() added. inv() is introduced
as an alias for solve() in R.
o Generate special matrices hankel(), rosser(), and wilkinson().
kron() is an alias for the R function kronecker().
OTHER CHANGES
o Renamed factors() to ifactor() to distiguish it more clearly from
factors as used in R.
CHANGES IN VERSION 0.1-5
NEW FUNCTIONS:
o Added function for flipping or rotating numeric and complex
matrices: flipdim(). flipud(), fliplr(), and rot90().
CHANGES IN VERSION 0.1-4
NEW FUNCTIONS:
o Added functions for generating sequences of (log-)linearly spaced
numeric values: linspace() and logspace(). Note that the functions
in the `matlab' package are not exactly mimicking the corresponding
Matlab/Octave functions.
o Added basic complex functions real(), imag(), conj(), and angle()
which are essentially only aliases of the R functions Re(), Im(),
or Conj().
angle() returns the angle of a complex number in radians. The R
function Mod() is here only available as abs().
CHANGES IN VERSION 0.1-3
NEW FUNCTIONS:
o Added compan() function for the `companion' matrix; the eig() function
is an alias for the R eigen()values function.
o Added the polynomial functions poly(), polyder(), polyfit(),
polyint(), and polyval().
o roots() returns real and complex roots of polynomials.
OTHER CHANGES
o Simplified the trapz() function.
CHANGES IN VERSION 0.1-2
NEW FUNCTIONS
o Added functions from number theory: primes(), isprime() and factors().
The corresponding function for factors() in Matlab/Octave is called
factor(), but that name should not be shadowed in R!
o Added the polyarea() and trapz() functions.
CHANGES IN VERSION 0.1-1
NEW FUNCTIONS
o Added some simple functions such as nthroot(), pow2(), and nextpow2().
o dot() and cross() functions for scalar and vector product.
o Generate matrices through vander() and hilb().
INITIAL VERSION 0.1-0
INSTALLATION
o `matlab4r' will be a pure R package without using any source code.
Therefore, installation will be immediate on all platforms.
INTENTION
o This package provides R implementations of more advanced math
functions from Matlab and Octave (and the Euler Math Toolbox)
with a special view on optimization and time series routines.
