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--- a/src/Rips_complex/utilities/ripscomplex.md
+++ b/src/Rips_complex/utilities/ripscomplex.md
@@ -39,11 +39,32 @@ Same as `rips_persistence` but taking a distance matrix as input.
**Usage**
-`rips_persistence [options] <CSV input file>`
+`rips_distance_matrix_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 ';'.
+The code do not check if it is dealing with a distance matrix. It is the user responsibility to provide a valid input.
+Please refer to data/distance_matrix/lower_triangular_distance_matrix.csv for an example of a file.
**Example**
`rips_distance_matrix_persistence data/distance_matrix/full_square_distance_matrix.csv -r 15 -d 3 -p 3 -m 0`
+
+
+## rips_correlation_matrix_persistence ##
+
+Same as `rips_distance_matrix_persistence` but taking a correlation matrix as input.
+
+**Usage**
+
+`rips_correlation_matrix_persistence [options] <CSV input file>`
+
+where
+`<CSV input file>` is the path to the file containing a correlation matrix. Can be square or lower triangular matrix. Separator is ';'.
+Note that no check is performed if the matrix given as the input is a correlation matrix.
+It is the user responsibility to ensure that this is the case.
+Please refer to data/correlation_matrix/lower_triangular_correlation_matrix.csv for an example of a file.
+
+**Example**
+
+`rips_correlation_matrix_persistence data/distance_matrix/full_square_distance_matrix.csv -r 15 -d 3 -p 3 -m 0`