Package org.apache.mahout.math

Examples of org.apache.mahout.math.Vector.asFormatString()

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      g2.setStroke(new BasicStroke(i == 0 ? 3 : 1));
      g2.setColor(colors[Math.min(DisplayDirichlet.colors.length - 1, i--)]);
      for (Cluster cluster : cls) {
        // if (true || cluster.getNumPoints() > sampleData.size() * 0.05) {
        dv.assign(cluster.getStd() * 3);
        System.out.println(cluster.getCenter().asFormatString() + ' ' + dv.asFormatString());
        DisplayDirichlet.plotEllipse(g2, cluster.getCenter(), dv);
        // }
      }
    }
  }
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          Vector vector = iterator.next();
          if (printKey) {
            writer.write(iterator.key().toString());
            writer.write("\t");
          }
          String fmtStr = useJSON ? vector.asFormatString() : VectorHelper.vectorToString(vector, dictionary);
          writer.write(fmtStr);
          writer.write('\n');
          i++;
        }
        writer.flush();
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      SequenceFile.Reader reader = new SequenceFile.Reader(fs, path, conf);
      Writable key = (Writable) reader.getKeyClass().newInstance();
      ClusterBase value = (ClusterBase) reader.getValueClass().newInstance();
      while (reader.next(key, value)) {
        Vector center = value.getCenter();
        String fmtStr = useJSON ? center.asFormatString() : VectorHelper.vectorToString(center, dictionary);
        writer.append("Id: ").append(String.valueOf(value.getId())).append(":");
        writer.append("name:").append(center.getName());
        if (subString > 0) {
          writer.append(":").append(fmtStr.substring(0, Math.min(subString, fmtStr.length())));
        }
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        Vector theVec = point.getVector();
        line.append(',');
        if (theVec instanceof NamedVector){
          line.append(((NamedVector)theVec).getName());
        } else {
          String vecStr = theVec.asFormatString();
          //do some basic manipulations for display
          vecStr = VEC_PATTERN.matcher(vecStr).replaceAll("_");
          line.append(vecStr);
        }
      }
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        float targetX = x + (float) (distance * Math.cos(angleRads));
        float targetY = y + (float) (distance * Math.sin(angleRads));
        if (theVec instanceof NamedVector) {
          vecStr = ((NamedVector) theVec).getName();
        } else {
          vecStr = theVec.asFormatString();
          //do some basic manipulations for display
          vecStr = VEC_PATTERN.matcher(vecStr).replaceAll("_");
        }
        if (subString > 0 && vecStr.length() > subString) {
          vecStr = vecStr.substring(0, subString);
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                  writer.write(":");
                }
                writer.write(String.valueOf(vector.size()));
                writer.write('\n');
              } else {
                String fmtStr = useJSON ? vector.asFormatString() : VectorHelper.vectorToString(vector, dictionary);
                writer.write(fmtStr);
                writer.write('\n');
              }
            }
          } finally {
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        Vector theVec = point.getVector();
        line.append(',');
        if (theVec instanceof NamedVector) {
          line.append(((NamedVector)theVec).getName());
        } else {
          String vecStr = theVec.asFormatString();
          //do some basic manipulations for display
          vecStr = VEC_PATTERN.matcher(vecStr).replaceAll("_");
          line.append(vecStr);
        }
      }
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        float targetX = x + (float) (distance * Math.cos(angleRads));
        float targetY = y + (float) (distance * Math.sin(angleRads));
        if (theVec instanceof NamedVector) {
          vecStr = ((NamedVector) theVec).getName();
        } else {
          vecStr = theVec.asFormatString();
          //do some basic manipulations for display
          vecStr = VEC_PATTERN.matcher(vecStr).replaceAll("_");
        }
        if (subString > 0 && vecStr.length() > subString) {
          vecStr = vecStr.substring(0, subString);
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            } else {
              String fmtStr;
              if (useCSV){
                fmtStr = VectorHelper.vectorToCSVString(vector, namesAsComments);
              } else {
                fmtStr = vector.asFormatString();
              }
              writer.write(fmtStr);
              writer.write('\n');
            }
          }
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        Map<String, Object> entry = Maps.newHashMap();
        Vector theVec = point.getVector();
        if (theVec instanceof NamedVector) {
          entry.put("vector_name", ((NamedVector) theVec).getName());
        } else {
          String vecStr = theVec.asFormatString();
          // do some basic manipulations for display
          vecStr = VEC_PATTERN.matcher(vecStr).replaceAll("_");
          entry.put("vector_name", vecStr);
        }
        entry.put("weight", String.valueOf(point.getWeight()));
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