private void loadData(boolean drawLast) {
    ChartCollection collection =
        fromDevice ? fileManager.getCollection() : fileManager.getPcaCollection();
    if (collection != null) {
      int size = collection.size();
      if (size > 0) {
        List<Entry> entries = new ArrayList<>();
        List<String> xVals = new ArrayList<>();

        ChartData data = collection.getCharData(size - 1);
        Map<Double, Double> values = data.getData();
        List<Double> keyList = new ArrayList<>();
        keyList.addAll(values.keySet());
        Collections.sort(keyList);

        for (Double x : keyList) {
          Number numX = x;
          int intX = numX.intValue();
          xVals.add(String.valueOf(x));

          double value = values.get(x);

          Number num = value;
          float val = num.floatValue();
          Entry entry = new Entry(val, intX);
          entries.add(entry);
        }

        LineDataSet dataSet = new LineDataSet(entries, "Dados");
        dataSet.setDrawCircleHole(false);
        dataSet.setDrawCircles(false);
        LineData chartData = new LineData(xVals, dataSet);
        chart.setData(chartData);

        totalGraphs = size;
        if (drawLast) {
          currentGraph = totalGraphs;
        } else {
          if (currentGraph < 1 || currentGraph > size) {
            currentGraph = totalGraphs;
          }
        }

        mainHandler.post(
            new Runnable() {
              @Override
              public void run() {
                chart.notifyDataSetChanged();
                chart.invalidate();

                txtTotal.setText(String.valueOf(totalGraphs));
                txtCurrent.setText(String.valueOf(currentGraph));
              }
            });
      }
    }
  }
Ejemplo n.º 2
0
 public PcaAsyncTask(Context context, List<String> files, int numComponents) {
   super(context);
   mFiles = files;
   mFileManager = FileManager.getSingleton(context);
   mNumComponents = numComponents;
   mShowComponentsMsg = false;
 }
Ejemplo n.º 3
0
  private void fillFilesListView() {
    File defaultPath = fileManager.getDefaultFolder();

    String[] filesInPath = defaultPath.list();

    ListAdapter filesAdapter =
        new ArrayAdapter<>(
            getContext(),
            android.R.layout.simple_list_item_multiple_choice,
            android.R.id.text1,
            filesInPath);
    listFiles.setAdapter(filesAdapter);
    listFiles.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
  }
  @Override
  public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    fileManager = FileManager.getSingleton(getContext());

    DeviceConnectionListener listener = null;
    Bundle args = getArguments();
    if (args != null) {
      fromDevice = args.getBoolean(ARG_FROM_DEVICE);
      if (fromDevice) {
        listener = this;
      }
    }
    usbConn = UsbConnection.getSingleton(getContext(), listener);

    mainHandler = new Handler(getContext().getMainLooper());
  }
Ejemplo n.º 5
0
    @Override
    public Map<String, ChartCollection> loadInBackground() {
      ChartCollection collection = new ChartCollection("PCA");

      File defaultFolder = mFileManager.getDefaultFolder();
      Uri uriDefaultFolder = Uri.parse("file://" + defaultFolder.getAbsolutePath());

      for (String filename : mFiles) {
        Uri uriFile = uriDefaultFolder.buildUpon().appendPath(filename).build();
        ChartCollection fileCollection = mFileManager.readFileForPca(uriFile);
        if (fileCollection != null) {
          for (ChartData chartData : fileCollection) {
            collection.addChartData(chartData);
          }
        }
      }

      if (mNumComponents > collection.size()) {
        mShowComponentsMsg = true;
        mNumComponents = collection.size();
      }

      double[][] array = new double[collection.size()][2048];
      for (int i = 0; i < collection.size(); i++) {
        for (int j = 0; j < 2048; j++) {
          array[i][j] = collection.getCharData(i).getData().get((double) j);
        }
      }
      Matrix matrix = new Matrix(array);

      //            SingularValueDecomposition svd = matrix.svd();
      //            SingularValueDecomposition svd = new SingularValueDecomposition(matrix);
      Pca pca = new Pca(matrix, mNumComponents);

      StringWriter strWriter = new StringWriter();
      PrintWriter writer = new PrintWriter(strWriter);
      matrix.print(writer, 10, 0);
      Log.d("Visio", "Matrix = " + strWriter.toString());

      Map<String, ChartCollection> pcaCollections = new HashMap<>(2);

      ChartCollection lCollection = new ChartCollection("PCA - L");

      Matrix lMatrix = pca.getL();
      double[][] lArray = lMatrix.getArray();
      for (int i = 0; i < lMatrix.getRowDimension(); i++) {
        Map<Double, Double> data = new HashMap<>();

        for (int j = 0; j < lMatrix.getColumnDimension(); j++) {
          data.put((double) j, lArray[i][j]);
        }

        ChartData chartData = new ChartData("PCA", "PCA", new Date().getTime(), data);
        lCollection.addChartData(chartData);
      }
      pcaCollections.put("L", lCollection);

      ChartCollection tCollection = new ChartCollection("PCA - T");

      Matrix tMatrix = pca.getT();
      double[][] tArray = tMatrix.getArray();
      for (int i = 0; i < tMatrix.getRowDimension(); i++) {
        Map<Double, Double> data = new HashMap<>();

        for (int j = 0; j < tMatrix.getColumnDimension(); j++) {
          data.put((double) j, tArray[i][j]);
        }

        ChartData chartData = new ChartData("PCA", "PCA", new Date().getTime(), data);
        tCollection.addChartData(chartData);
      }
      pcaCollections.put("T", tCollection);

      return pcaCollections;
    }
Ejemplo n.º 6
0
  private void createView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    view = inflater.inflate(R.layout.fragment_pca_tab, container, false);

    layoutProgress = view.findViewById(R.id.layoutProgress);
    layoutProgress.setVisibility(View.GONE);

    layoutPCAGraphOptions = view.findViewById(R.id.layoutPCAGraphOptions);
    layoutPCAGraphOptions.setVisibility(View.GONE);

    listFiles = (ListView) view.findViewById(R.id.listArquivos);

    txtComponentes = (TextView) view.findViewById(R.id.txtComponentes);
    txtComponentes.setText("20");

    seekComponentes = (SeekBar) view.findViewById(R.id.seekComponentes);
    seekComponentes.setOnSeekBarChangeListener(
        new SeekBar.OnSeekBarChangeListener() {
          @Override
          public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
            if (progress == 0) {
              seekBar.setProgress(1);
              progress = 1;
            }
            txtComponentes.setText(String.valueOf(progress));
          }

          @Override
          public void onStartTrackingTouch(SeekBar seekBar) {}

          @Override
          public void onStopTrackingTouch(SeekBar seekBar) {
            // TODO
            numComponentes = seekBar.getProgress();
          }
        });
    seekComponentes.setProgress(20);
    numComponentes = 20;

    btnPCA = (Button) view.findViewById(R.id.btnPCA);
    btnPCA.setOnClickListener(
        new View.OnClickListener() {
          @Override
          public void onClick(View v) {
            // TODO:
            btnPCA.setEnabled(false);

            ArrayList<String> files = new ArrayList<>();

            SparseBooleanArray checkedPositions = listFiles.getCheckedItemPositions();
            for (int i = 0; i < listFiles.getCount(); i++) {
              if (checkedPositions.get(i)) {
                String strFile = (String) listFiles.getItemAtPosition(i);
                if (!TextUtils.isEmpty(strFile)) {
                  files.add(strFile);
                } else {
                  // TODO:
                }
              }
            }

            if (files.isEmpty()) {
              // TODO: show alert, need to select at least one file
              return;
            }

            Bundle args = new Bundle();
            args.putStringArrayList(ARG_FILENAMES, files);
            getLoaderManager().restartLoader(LOADER_PCA, args, PcaTabFragment.this).forceLoad();
          }
        });

    radioGroupMatrizes = (RadioGroup) view.findViewById(R.id.radioGroupMatrizes);
    radioMatrizesL = (RadioButton) view.findViewById(R.id.radioMatrizesL);
    radioMatrizesL.setChecked(true);

    spinX = (Spinner) view.findViewById(R.id.spinX);
    spinY = (Spinner) view.findViewById(R.id.spinY);

    btnPlotPCA = (Button) view.findViewById(R.id.btnPlotPCA);
    btnPlotPCA.setOnClickListener(
        new View.OnClickListener() {
          @Override
          public void onClick(View v) {
            ChartCollection collection = null;

            switch (radioGroupMatrizes.getCheckedRadioButtonId()) {
              case R.id.radioMatrizesL:
                collection = chartCollections.get("L");
                break;
              case R.id.radioMatrizesT:
                collection = chartCollections.get("T");
                break;
            }

            if (collection != null) {
              int x = spinX.getSelectedItemPosition();
              int y = spinY.getSelectedItemPosition();

              ChartCollection finalCollection =
                  new ChartCollection(String.format("PCA - (%d, %d)", x, y));
              Map<Double, Double> data = new HashMap<>();
              for (ChartData chartData : collection) {
                // TODO:
                Number numX = chartData.getData().get((double) x);
                data.put(numX.doubleValue(), chartData.getData().get((double) y));
              }
              ChartData chartData = new ChartData("PCA", "PCA", new Date().getTime(), data);
              finalCollection.addChartData(chartData);

              listener.onPlotChart(finalCollection);
            }
          }
        });

    fileManager = FileManager.getSingleton(getContext());

    if (fileManager.askForStoragePermission(
        getActivity(), REQUEST_FILE_PERMISSION, Manifest.permission.READ_EXTERNAL_STORAGE)) {
      fillFilesListView();
    }

    mShortAnimationDuration = getResources().getInteger(android.R.integer.config_shortAnimTime);
  }