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Changes in plotting functions.

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This commit is contained in:
Ricardo Andrade 2013-02-01 17:58:21 +00:00
parent f7d2fc6ca4
commit 5e2baf1919
5 changed files with 71 additions and 31 deletions
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31
GPy/util/plot.py
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@ -70,10 +70,11 @@ def align_subplots(N,M,xlim=None, ylim=None):
else:
removeUpperTicks()
def x_frame(X,plot_limits=None,resolution=None):
def x_frame1D(X,plot_limits=None,resolution=None):
"""
Internal helper function for making plots, returns a set of input values to plot as well as lower and upper limits
"""
assert X.shape[1] ==1, "x_frame1D is defined for one-dimensional inputs"
if plot_limits is None:
xmin,xmax = X.min(0),X.max(0)
xmin, xmax = xmin-0.2*(xmax-xmin), xmax+0.2*(xmax-xmin)
@ -82,12 +83,24 @@ def x_frame(X,plot_limits=None,resolution=None):
else:
raise ValueError, "Bad limits for plotting"
if X.shape[1]==1:
Xnew = np.linspace(xmin,xmax,resolution or 200)[:,None]
elif X.shape[1]==2:
resolution = resolution or 50
xx,yy = np.mgrid[xmin[0]:xmax[0]:1j*resolution,xmin[1]:xmax[1]:1j*resolution]
Xnew = np.vstack((xx.flatten(),yy.flatten())).T
else:
raise NotImplementedError, "Cannot define a frame with more than two input dimensions"
Xnew = np.linspace(xmin,xmax,resolution or 200)[:,None]
return Xnew, xmin, xmax
def x_frame2D(X,plot_limits=None,resolution=None):
"""
Internal helper function for making plots, returns a set of input values to plot as well as lower and upper limits
"""
assert X.shape[1] ==2, "x_frame2D is defined for two-dimensional inputs"
if plot_limits is None:
xmin,xmax = X.min(0),X.max(0)
xmin, xmax = xmin-0.2*(xmax-xmin), xmax+0.2*(xmax-xmin)
elif len(plot_limits)==2:
xmin, xmax = plot_limits
else:
raise ValueError, "Bad limits for plotting"
resolution = resolution or 50
xx,yy = np.mgrid[xmin[0]:xmax[0]:1j*resolution,xmin[1]:xmax[1]:1j*resolution]
Xnew = np.vstack((xx.flatten(),yy.flatten())).T
return Xnew, xx,yy,xmin, xmax