X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fmath%2FMatrix.java;fp=src%2Fjalview%2Fmath%2FMatrix.java;h=b7d225ab887ae90e8c246a8a7ac47ae029661722;hb=c99e5757c9c199687f6e3cdbbdb500f2cbb3cf89;hp=7870c14609822b3f577d6a32dfae0d0cfd263aff;hpb=d879fd713c06451d655f312840a610f2bae7eda5;p=jalview.git

diff --git a/src/jalview/math/Matrix.java b/src/jalview/math/Matrix.java
index 7870c14..b7d225a 100755
--- a/src/jalview/math/Matrix.java
+++ b/src/jalview/math/Matrix.java
@@ -1415,4 +1415,23 @@ public class Matrix implements MatrixI
     return result;
   }
 
+  /**
+  * mirrors columns of the matrix
+  *
+  * @return
+  */
+  @Override
+  public MatrixI mirrorCol()
+  {
+    double[][] result = new double[rows][cols];
+    for (int i = 0; i < rows; i++)
+    {
+      int k = cols - 1;	// reverse col
+      for (int j = 0; j < cols; j++)
+      {
+	result[i][k--] = this.getValue(i,j);
+      }
+    }
+    return new Matrix(result);
+  }
 }