def draw_crossings(self):
"Draw crossings of a phidelta diagram"
left, top, right, bottom = multiple_get(self.borders, self.border_keys)
X, Y = zip(left, right)
self.axes.plot(X, Y, color='0.5', linestyle='dashed', zorder=1)
X, Y = zip(top, bottom)
self.axes.plot(X, Y, color='0.5', linestyle='dashed', zorder=1)
def draw_crossings(self,ax): "Draws crossings for a rhombus" left, top, right, bottom = multiple_get(self.borders,self.border_keys) X, Y = zip(left,right) ax.plot ( X, Y, color='0.5', linestyle='dashed', zorder=1 ) X, Y = zip(top,bottom) ax.plot ( X, Y, color='0.5', linestyle='dashed', zorder=1 )
def load_dataset(self, info):
"Load a dataset (file information given as dataset object)"
keys = 'filename', 'classes', 'sep', 'index', 'header'
filename, classes, sep, index, header = multiple_get(
info.__dict__, keys)
fnames, check = None, info.check_class
content = self.load_content(filename)
if header: fnames, content = content[0], content[1:]
data = np.array([string_split(ln, sep) for ln in content], dtype=str)
labels = np.array([1 if check(c) else -1 for c in data[:, index]])
data = np.delete(data, index, 1)
nrows, ncols = data.shape
assert len(data) > 0, "Failure while loading file {}".format(filename)
info.fnames = self.parse_fnames(fnames,
ncols=ncols,
sep=sep,
index=index)
return data, labels, info
def fill(self,ax,color='lightgrey'): "Fill the background of a phidelta diagram" X, Y = unzip2(multiple_get(self.borders,self.border_keys)) ax.fill ( X + X[:1], Y + Y[:1], color=color, zorder=0 )
def draw_borders(self, ax): "Draws borders of a rhombus" X, Y = unzip2(multiple_get(self.borders,self.border_keys)) ax.plot ( X + X[:1], Y + Y[:1], color='r', zorder=1 )
def draw_axes(self, ax): "Draws axes of a rhombus" xmin, ymax, xmax, ymin = multiple_get(self.limits,self.limit_keys) ax.plot([0.,0.],[-1.,1.], color = 'b', zorder=1) ax.plot([xmin,xmax],[0.,0.], color = 'b', zorder=1)
def set_limits(self, ax, projection = '2d'): "Sets limits of a rhombus" xmin, ymax, xmax, ymin = multiple_get(self.limits,self.limit_keys) ax.set_xlim(xmin, xmax) ; ax.set_ylim(ymin, ymax)
def fill(self, size=160):
"Fill the background of a phidelta diagram"
X, Y = unzip2(multiple_get(self.borders, self.border_keys))
self.axes.fill(X + X[:1], Y + Y[:1], color='lightgrey', zorder=0)
def draw_borders(self):
"Draw borders of a phidelta diagram"
X, Y = unzip2(multiple_get(self.borders, self.border_keys))
self.axes.plot(X + X[:1], Y + Y[:1], color='r', zorder=1)
def draw_axes(self):
"Draw axes of a phidelta diagram"
xmin, ymax, xmax, ymin = multiple_get(self.limits, self.limit_keys)
self.axes.plot([0., 0.], [-1., 1.], color='b', zorder=1)
self.axes.plot([xmin, xmax], [0., 0.], color='b', zorder=1)
def set_limits(self):
"Set limits of a phidelta diagram"
xmin, ymax, xmax, ymin = multiple_get(self.limits, self.limit_keys)
self.axes.set_xlim(xmin, xmax)
self.axes.set_ylim(ymin, ymax)