lowercase x and y are defined (same object), but only x is used. substituting to y makes more sense; minor whitespace edits

Author: haraldschilly

Chapter3_MCMC/IntroMCMC.ipynb

@@ -47,12 +47,12 @@
       "from mpl_toolkits.mplot3d import Axes3D\n",
       "\n",
       "fig = plt.figure()\n",
-      "x = y = np.linspace(0,5, 100 )\n",
+      "x = y = np.linspace(0, 5, 100 )\n",
       "X, Y = np.meshgrid(x, y)\n",
       "\n",
       "subplot(121)\n",
-      "uni_x = stats.uniform.pdf( x,loc=0, scale = 5)\n",
-      "uni_y = stats.uniform.pdf(x, loc=0, scale = 5)\n",
+      "uni_x = stats.uniform.pdf(x, loc=0, scale = 5)\n",
+      "uni_y = stats.uniform.pdf(y, loc=0, scale = 5)\n",
       "M = np.dot( uni_x[:,None], uni_y[None,:] )\n",
       "im = plt.imshow(M, interpolation='none', origin='lower',\n",
       "                cmap=cm.jet, vmax=1, vmin = -.15, extent=(0,5,0,5))\n",