[SSGPLVM] add plotting class

GPy/plotting/matplot_dep/ssgplvm.py

@@ -0,0 +1,29 @@
+"""
+The module plotting results for SSGPLVM
+"""
+
+import pylab
+
+from ...models import SSGPLVM
+from img_plots import plot_2D_images
+from ...util.misc import param_to_array
+
+class SSGPLVM_plot(object):
+    def __init__(self,model, imgsize):
+        assert isinstance(model,SSGPLVM)
+        self.model = model
+        self.imgsize= imgsize
+        assert model.Y.shape[1] == imgsize[0]*imgsize[1]
+        
+    def plot_inducing(self):
+        fig1 = pylab.figure()
+        mean = self.model.posterior.mean
+        arr = mean.reshape(*(mean.shape[0],self.imgsize[1],self.imgsize[0]))
+        plot_2D_images(fig1, arr)
+        fig1.gca().set_title('The mean of inducing points')
+        
+        fig2 = pylab.figure()
+        covar = self.model.posterior.covariance
+        plot_2D_images(fig2, covar)
+        fig2.gca().set_title('The variance of inducing points')
+