def _setup_plot(self):
self.plot.clear()
points = self.ca
variables = self.selected_vars()
colors = colorpalette.ColorPaletteGenerator(len(variables))
p_axes = self._p_axes()
if points == None:
return
if len(variables) == 2:
row_points = self.ca.row_factors[:, p_axes]
col_points = self.ca.col_factors[:, p_axes]
points = [row_points, col_points]
else:
points = self.ca.row_factors[:, p_axes]
counts = [len(var.values) for var in variables]
range_indices = numpy.cumsum([0] + counts)
ranges = zip(range_indices, range_indices[1:])
points = [points[s:e] for s, e in ranges]
for i, (v, points) in enumerate(zip(variables, points)):
color_outline = colors[i]
color_outline.setAlpha(200)
color = QColor(color_outline)
color.setAlpha(120)
item = ScatterPlotItem(
x=points[:, 0],
y=points[:, 1],
brush=QBrush(color),
pen=pg.mkPen(color_outline.darker(120), width=1.5),
size=numpy.full((points.shape[0], ), 10.1),
)
self.plot.addItem(item)
for name, point in zip(v.values, points):
item = pg.TextItem(name, anchor=(0.5, 0))
self.plot.addItem(item)
item.setPos(point[0], point[1])
inertia = self.ca.inertia_of_axis()
if numpy.sum(inertia) == 0:
inertia = 100 * inertia
else:
inertia = 100 * inertia / numpy.sum(inertia)
ax = self.plot.getAxis("bottom")
ax.setLabel("Component {} ({:.1f}%)".format(p_axes[0] + 1,
inertia[p_axes[0]]))
ax = self.plot.getAxis("left")
ax.setLabel("Component {} ({:.1f}%)".format(p_axes[1] + 1,
inertia[p_axes[1]]))
def _setup_plot(self):
self.plot.clear()
points = self.ca
variables = self.selected_vars()
colors = colorpalette.ColorPaletteGenerator(len(variables))
p_axes = self._p_axes()
if len(variables) == 2:
row_points = self.ca.row_factors[:, p_axes]
col_points = self.ca.col_factors[:, p_axes]
points = [row_points, col_points]
else:
points = self.ca.row_factors[:, p_axes]
counts = [len(var.values) for var in variables]
range_indices = numpy.cumsum([0] + counts)
ranges = zip(range_indices, range_indices[1:])
points = [points[s:e] for s, e in ranges]
for i, (v, points) in enumerate(zip(variables, points)):
color_outline = colors[i]
color_outline.setAlpha(200)
color = QColor(color_outline)
color.setAlpha(120)
item = ScatterPlotItem(
x=points[:, 0], y=points[:, 1], brush=QBrush(color),
pen=pg.mkPen(color_outline.darker(120), width=1.5),
size=numpy.full((points.shape[0],), 10.1),
)
self.plot.addItem(item)
for name, point in zip(v.values, points):
item = pg.TextItem(name, anchor=(0.5, 0))
self.plot.addItem(item)
item.setPos(point[0], point[1])
inertia = self.ca.inertia_of_axis()
inertia = 100 * inertia / numpy.sum(inertia)
ax = self.plot.getAxis("bottom")
ax.setLabel("Component {} ({:.1f}%)"
.format(p_axes[0] + 1, inertia[p_axes[0]]))
ax = self.plot.getAxis("left")
ax.setLabel("Component {} ({:.1f}%)"
.format(p_axes[1] + 1, inertia[p_axes[1]]))
def _setup_plot(self):
def get_minmax(points):
minmax = [float("inf"), float("-inf"), float("inf"), float("-inf")]
for pp in points:
for p in pp:
minmax[0] = min(p[0], minmax[0])
minmax[1] = max(p[0], minmax[1])
minmax[2] = min(p[1], minmax[2])
minmax[3] = max(p[1], minmax[3])
return minmax
self.plot.clear()
points = self.ca
variables = self.selected_vars()
colors = colorpalette.ColorPaletteGenerator(len(variables))
p_axes = self._p_axes()
if points is None:
return
if len(variables) == 2:
row_points = self.ca.row_factors[:, p_axes]
col_points = self.ca.col_factors[:, p_axes]
points = [row_points, col_points]
else:
points = self.ca.row_factors[:, p_axes]
counts = [len(var.values) for var in variables]
range_indices = np.cumsum([0] + counts)
ranges = zip(range_indices, range_indices[1:])
points = [points[s:e] for s, e in ranges]
minmax = get_minmax(points)
margin = abs(minmax[0] - minmax[1])
margin = margin * 0.05 if margin > 1e-10 else 1
self.plot.setXRange(minmax[0] - margin, minmax[1] + margin)
margin = abs(minmax[2] - minmax[3])
margin = margin * 0.05 if margin > 1e-10 else 1
self.plot.setYRange(minmax[2] - margin, minmax[3] + margin)
for i, (v, points) in enumerate(zip(variables, points)):
color_outline = colors[i]
color_outline.setAlpha(200)
color = QColor(color_outline)
color.setAlpha(120)
item = ScatterPlotItem(
x=points[:, 0],
y=points[:, 1],
brush=QBrush(color),
pen=pg.mkPen(color_outline.darker(120), width=1.5),
size=np.full((points.shape[0], ), 10.1),
)
self.plot.addItem(item)
for name, point in zip(v.values, points):
item = pg.TextItem(name, anchor=(0.5, 0))
self.plot.addItem(item)
item.setPos(point[0], point[1])
inertia = self.ca.inertia_of_axis()
if np.sum(inertia) == 0:
inertia = 100 * inertia
else:
inertia = 100 * inertia / np.sum(inertia)
ax = self.plot.getAxis("bottom")
ax.setLabel("Component {} ({:.1f}%)".format(p_axes[0] + 1,
inertia[p_axes[0]]))
ax = self.plot.getAxis("left")
ax.setLabel("Component {} ({:.1f}%)".format(p_axes[1] + 1,
inertia[p_axes[1]]))
def _setup_plot(self):
def get_minmax(points):
minmax = [float('inf'),
float('-inf'),
float('inf'),
float('-inf')]
for pp in points:
for p in pp:
minmax[0] = min(p[0], minmax[0])
minmax[1] = max(p[0], minmax[1])
minmax[2] = min(p[1], minmax[2])
minmax[3] = max(p[1], minmax[3])
return minmax
self.plot.clear()
points = self.ca
variables = self.selected_vars()
colors = colorpalette.ColorPaletteGenerator(len(variables))
p_axes = self._p_axes()
if points is None:
return
if len(variables) == 2:
row_points = self.ca.row_factors[:, p_axes]
col_points = self.ca.col_factors[:, p_axes]
points = [row_points, col_points]
else:
points = self.ca.row_factors[:, p_axes]
counts = [len(var.values) for var in variables]
range_indices = np.cumsum([0] + counts)
ranges = zip(range_indices, range_indices[1:])
points = [points[s:e] for s, e in ranges]
minmax = get_minmax(points)
margin = abs(minmax[0] - minmax[1])
margin = margin * 0.05 if margin > 1e-10 else 1
self.plot.setXRange(minmax[0] - margin, minmax[1] + margin)
margin = abs(minmax[2] - minmax[3])
margin = margin * 0.05 if margin > 1e-10 else 1
self.plot.setYRange(minmax[2] - margin, minmax[3] + margin)
for i, (v, points) in enumerate(zip(variables, points)):
color_outline = colors[i]
color_outline.setAlpha(200)
color = QColor(color_outline)
color.setAlpha(120)
item = ScatterPlotItem(
x=points[:, 0], y=points[:, 1], brush=QBrush(color),
pen=pg.mkPen(color_outline.darker(120), width=1.5),
size=np.full((points.shape[0],), 10.1),
)
self.plot.addItem(item)
for name, point in zip(v.values, points):
item = pg.TextItem(name, anchor=(0.5, 0))
self.plot.addItem(item)
item.setPos(point[0], point[1])
inertia = self.ca.inertia_of_axis()
if np.sum(inertia) == 0:
inertia = 100 * inertia
else:
inertia = 100 * inertia / np.sum(inertia)
ax = self.plot.getAxis("bottom")
ax.setLabel("Component {} ({:.1f}%)"
.format(p_axes[0] + 1, inertia[p_axes[0]]))
ax = self.plot.getAxis("left")
ax.setLabel("Component {} ({:.1f}%)"
.format(p_axes[1] + 1, inertia[p_axes[1]]))