WALSH
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WALSH a C++ code which (description goes here).

Licensing:

This code is distributed under the MIT license.

Languages:

WALSH is available in a C++ version.

Related Software and Data:

Reference:

Source Code:

• walsh.cpp, the source code.
• walsh.hpp, the include file.
• walsh.sh, BASH commands to compile the source code.

Examples and Tests:

• walsh_test.cpp, a sample calling program.
• walsh_test.sh, BASH commands to compile and run the sample program.
• walsh_test.txt, the output file.

List of Routines:

• FFWT performs an in-place fast Walsh transform.
• FWT performs a fast Walsh transform.
• HAAR performs a Haar transform.
• HAARIN inverts a Haar transform.
• HNORM computes normalization factors for a forward or inverse Haar transform.
• I4_LOG_2 returns the integer part of the logarithm base 2 of an I4.
• I4_MAX returns the maximum of two I4's.
• I4_MIN returns the minimum of two I4's.
• I4_MODP returns the nonnegative remainder of I4 division.
• I4_POWER returns the value of I^J.
• I4_WRAP forces an I4 to lie between given limits by wrapping.
• R8VEC_COPY copies an R8VEC.
• R8VEC_COPY_NEW copies an R8VEC to a "new" R8VEC.
• R8VEC_UNIFORM_01_NEW returns a new unit pseudorandom R8VEC.
• TIMESTAMP prints the current YMDHMS date as a time stamp.
• WALSH performs a fast Walsh transform.