Robert Kern [EMAIL PROTECTED]
writes:
L*u*v* or its cylindrical-coordinate cousin L*t*theta* (or
LCH_uv). Choosing Color Palettes for Statistical Graphics is a
nice paper talking about an implementation in R (although they do
seem to misname L*t*theta* as HCL, which officially is
When sparse matrices have explicit zero values, `axes.spy` plots those
zero values. This behavior seems unintentional. For example, the
following code should have a main diagonal with markers missing in the
middle, but `spy` currently plots a full main diagonal.
#~~~
import
On Fri, Sep 26, 2008 at 12:39 PM, Tony S Yu [EMAIL PROTECTED] wrote:
+if all(nonzero == False):
+raise ValueError('spy cannot plot sparse zeros
matrix')
Is raising an exception the right choice here -- why can't we plot an
all zeros image?
JDH
On Sep 26, 2008, at 2:28 PM, John Hunter wrote:
On Fri, Sep 26, 2008 at 12:39 PM, Tony S Yu [EMAIL PROTECTED] wrote:
+if all(nonzero == False):
+raise ValueError('spy cannot plot sparse zeros
matrix')
Is raising an exception the right choice here -- why
On Sep 26, 2008, at 3:38 PM, John Hunter wrote:
On Fri, Sep 26, 2008 at 2:36 PM, Tony S Yu [EMAIL PROTECTED] wrote:
Actually, now that I think about it: you could plot a trivially
small image
and just adjust the coordinates so that they correspond to the
original
matrix shape. Is this
Tony S Yu wrote:
On Sep 26, 2008, at 2:28 PM, John Hunter wrote:
On Fri, Sep 26, 2008 at 12:39 PM, Tony S Yu [EMAIL PROTECTED] wrote:
+if all(nonzero == False):
+raise ValueError('spy cannot plot sparse zeros
matrix')
Is raising an exception the right
