ex-7: improve plots

ex-7/plot.py

@@ -7,8 +7,7 @@ def line(x, y, **args):
     '''line between two points x,y'''
     plot([x[0], y[0]], [x[1], y[1]], **args)
 
-plt.rcParams['font.size'] = 30
-
+rcParams['font.size'] = 12
 w = loadtxt(sys.stdin, max_rows=2)
 v = array([[0, -1], [1, 0]]) @ w
 cut = float(input())
@@ -19,17 +18,24 @@ signal, noise = data[:n].T, data[n:].T
 
 figure()
 subplot(aspect='equal')
-scatter(*signal, edgecolor='#51492d', c='#dbbb4a', label='signal')
-scatter(*noise, edgecolor='#512d3d', c='#d64d88', label='noise')
-line(-20*w, 20*w, c='xkcd:blue', label='projection')
-line(w-10*v, w+10*v, c='xkcd:red', label='cut')
+scatter(*signal, edgecolor='xkcd:charcoal',
+        c='xkcd:dark yellow', label='signal')
+scatter(*noise,  edgecolor='xkcd:charcoal',
+        c='xkcd:pale purple', label='noise')
+line(-20*w, 20*w, c='xkcd:midnight blue', label='projection')
+line(w-10*v, w+10*v, c='xkcd:scarlet', label='cut')
 xlim(-1.5, 8)
 ylim(-1.5, 8)
+legend()
+tight_layout()
 
 figure()
 sig_proj   = np.dot(w, signal)
 noise_proj = np.dot(w, noise)
-hist(sig_proj,   color='#dbbb4a')
-hist(noise_proj, color='#d64d88')
-axvline(cut, c='r')
+hist(sig_proj,   color='xkcd:dark yellow', label='signal')
+hist(noise_proj, color='xkcd:pale purple', label='noise')
+axvline(cut, c='xkcd:scarlet')
+legend()
+tight_layout()
+
 show()