test_partial_digest


test_partial_digest, a FORTRAN90 code which can generate example cases of the partial digest problem.

In the partial digest problem, we assume that there are N objects arranged along a line. We denote the position of object I by X(I). The positions of the objects are unknown. Instead, we have a list of the distances between every distinct pair of objects. Note that the distances are not "tagged"; that is, if there is a 175 on the list of distances, we don't know which two objects are separated by that distance. In the partial digest problem, we start with the (N*(N-1))/2 distances D, and must come up with at least one linear arrangement of N objects that corresponds to the distances.

To use this library, the user specifies a number of objects N, and a maximum separation DMAX. The library will generate N object locations in an array called LOCATE, and the corresponding list of distances D.

Licensing:

The computer code and data files made available on this web page are distributed under the MIT license

Languages:

test_partial_digest is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Software and Data:

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CITIES, a dataset directory which defines the locations or relative distances of cities on a map.

COMBO, a FORTRAN90 code which carries out various combinatorial computations.

DISTANCE_TO_POSITION, a FORTRAN90 code which estimates the positions of cities based on a city-to-city distance table.

PARTIAL_DIGEST, a FORTRAN90 code which seeks solutions of the partial digest problem.

SUBSET, a FORTRAN90 code which carries out various combinatorial computations.

test_partial_digest_test

Reference:

  1. Pavel Pevzner,
    Computational Molecular Biology,
    MIT Press, 2000,
    ISBN: 0-262-16197-4,
    LC: QH506.P47.

Source Code:


Last revised on 05 September 2020.