r8row

r8row, an Octave code which contains utility routines for R8ROW's, that is, real MxN arrays, considered as M row vectors, each of length N. The data may be thought of as a matrix of multiple rows, and many operations will be carried out rowwise.

Licensing:

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

Languages:

r8row is available in a C version and a C++ version and a Fortran90 version and a MATLAB version and an Octave version and a Python version.

Related Programs:

r8row_test

linear_algebra, MATLAB codes which carry out various linear algebra operations for matrices stored in a variety of formats.

Source Code:

• i4_log_10.m, returns the integer part of the logarithm base 10 of an integer;
• i4_log_10_test.m, returns the integer part of the logarithm base 10 of an integer;
• i4mat_print.m, prints an I4MAT;
• i4mat_print_some.m, prints some of an I4MAT;
• i4vec_print.m, prints an I4VEC;
• i4vec_uniform_ab.m, returns a pseudorandom I4VEC in a given range;
• r8row_compare.m, compares two rows of an R8ROW;
• r8row_indicator.m, returns an R8ROW indicator matrix;
• r8row_max.m, returns the row maximums of an R8ROW.
• r8row_mean.m, returns the row means of an R8ROW.
• r8row_min.m, returns the row minimums of an R8ROW.
• r8row_part_quick_a.m, partitions the rows of an R8ROW;
• r8row_print.m, prints an R8ROW;
• r8row_print_some.m, prints some of an R8ROW;
• r8row_running_average.m, computes the running averages of an R8ROW;
• r8row_running_sum.m, computes the running averages of an R8ROW;
• r8row_sort_heap_a.m, ascending heapsorts the rows of an R8ROW;
• r8row_sort_heap_index_a.m, computes an index vector to ascending sort an R8ROW;
• r8row_sort_quick_a.m, ascending quicksorts the rows of an R8ROW;
• r8row_sum.m, returns the row sums of an R8ROW.
• r8row_swap.m, swaps two rows of an R8ROW.
• r8row_to_r8vec.m, converts an R8ROW into an R8VEC.
• r8row_transpose_print.m, prints an R8ROW, transposed;
• r8row_transpose_print_some.m, prints some of an R8ROW, transposed;
• r8row_uniform_ab.m, returns an R8ROW of scaled pseudorandom numbers;
• r8row_variance.m, returns the row variances of an R8ROW.
• r8vec_eq.m, is true if two R8VEC's are equal;
• r8vec_gt.m, is true if one R8VEC is greater than another;
• r8vec_lt.m, is true if one R8VEC is less than another;
• r8vec_print.m, prints an R8VEC;
• sort_heap_external.m, externally sorts a list of values into ascending order;