Really remove README, merge didn't dare.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/sparserips-glisse@3202 636b058d-ea47-450e-bf9e-a15bfbe3eedb

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-# Rips_complex #
-
-## `rips_persistence` ##
-This program computes the persistent homology with coefficient field *Z/pZ* of a Rips complex defined on a set of input points. The output diagram contains one bar per line, written with the convention:
-
-`p dim birth death`
-
-where `dim` is the dimension of the homological feature, `birth` and `death` are respectively the birth and death of the feature, and `p` is the characteristic of the field *Z/pZ* used for homology coefficients (`p` must be a prime number).
-
-**Usage**
-`rips_persistence [options] <OFF input file>`
-
-**Allowed options**
-
-* `-h [ --help ]` Produce help message
-* `-o [ --output-file ]` Name of file in which the persistence diagram is written. Default print in standard output.
-* `-r [ --max-edge-length ]` (default = inf) Maximal length of an edge for the Rips complex construction.
-* `-d [ --cpx-dimension ]` (default = 1) Maximal dimension of the Rips complex we want to compute.
-* `-p [ --field-charac ]` (default = 11)     Characteristic p of the coefficient field Z/pZ for computing homology.
-* `-m [ --min-persistence ]` (default = 0) Minimal lifetime of homology feature to be recorded. Enter a negative value to see zero length intervals.
-
-Beware: this program may use a lot of RAM and take a lot of time if `max-edge-length` is set to a large value.
-
-**Example 1 with Z/2Z coefficients**
-`rips_persistence ../../data/points/tore3D_1307.off -r 0.25 -m 0.5 -d 3 -p 2`
-
-outputs:
-```
-2  0 0 inf
-2  1 0.0983494 inf 
-2  1 0.104347 inf 
-2  2 0.138335 inf 
-```
-
-**Example 2 with Z/3Z coefficients**
-
-rips_persistence ../../data/points/tore3D_1307.off -r 0.25 -m 0.5 -d 3 -p 3
-
-outputs:
-```
-3  0 0 inf
-3  1 0.0983494 inf
-3  1 0.104347 inf
-3  2 0.138335 inf
-```
-
-
-
-
-## `rips_distance_matrix_persistence` ##
-Same as `rips_persistence` but taking a distance matrix as input. 

-

-**Usage**
-`rips_persistence [options] <CSV input file>`

-where

-`<CSV input file>` is the path to the file containing a distance matrix. Can be square or lower triangular matrix. Separator is ';'.
-
-**Example**
-`rips_distance_matrix_persistence data/distance_matrix/full_square_distance_matrix.csv -r 15 -d 3 -p 3 -m 0`
-
-outputs:
-```
-The complex contains 46 simplices 
-   and has dimension 3 
-3  0 0 inf 
-3  0 0 8.94427 
-3  0 0 7.28011 
-3  0 0 6.08276 
-3  0 0 5.83095 
-3  0 0 5.38516 
-3  0 0 5 
-3  1 11 12.0416 
-3  1 6.32456 6.7082 
-```
-
-
-
-
-## `rips_persistence` ##
-This program computes the persistent homology with coefficient field *Z/pZ*
-of a sparse (1+epsilon)-approximation of the Rips complex defined on a set of input points. The output diagram contains one bar per line, written with the convention:
-
-`p dim birth death`
-
-where `dim` is the dimension of the homological feature, `birth` and `death` are respectively the birth and death of the feature, and `p` is the characteristic of the field *Z/pZ* used for homology coefficients (`p` must be a prime number).
-
-**Usage**
-`sparse_rips_persistence [options] <OFF input file>`
-
-**Allowed options**
-
-* `-h [ --help ]` Produce help message
-* `-o [ --output-file ]` Name of file in which the persistence diagram is written. Default print in standard output.
-* `-e [ --approximation ]` (default = .5) Epsilon, where the sparse Rips complex is a (1+epsilon)-approximation of the Rips complex.
-* `-d [ --cpx-dimension ]` (default = 1) Maximal dimension of the Rips complex we want to compute.
-* `-p [ --field-charac ]` (default = 11)     Characteristic p of the coefficient field Z/pZ for computing homology.
-* `-m [ --min-persistence ]` (default = 0) Minimal lifetime of homology feature to be recorded. Enter a negative value to see zero length intervals.
-
-**Example with Z/2Z coefficients**
-`rips_persistence ../../data/points/tore3D_1307.off -e .5 -m .2 -d 3 -p 2`
-
-may output (there is randomness involved):
-```
-The complex contains 17002096 simplices 
-   and has dimension 3 
-2  0 0 inf 
-2  1 0.104347 1.29343 
-2  2 0.138335 0.577743 
-2  1 0.0983494 0.529708 
-```