python - How can I get matplotlib to make a colorbar with a color centered on 0? -

-

I am plotting to plot a wagger of some data, and in the extreme parts of the distribution the value is about 0 also very disappointed That's where my test plot looks like this: plot of a winger distribution

In the blue "sea" waves are around 1 e-18 around one dimension, but because they fall around 0, they cross a line in the color palette.

How can I make a computation (), instead of being a conspiracy, there is a plot with zero color centered instead of zero?

I think you want something like this: 

  class set_cbar_zero (normal): "" "set_cbar_zero (midpoint = float) default: midpoint = 0. sets the center of any theater for normalized and desired value, which is set using midpoint." "Diff __int___ (self, vimine = none, vmx = none, midpoint = 0., clip = false): self. Mindpoint = midpoint normal .__ init __ (self, vmin, vmax, clip) def __call __ ( Self, original Return, numpy.ma.masked_array (numpy.interp (value, x, number, x, y = [self.vmin, self.midpoint, self.vmax], [0, 0.5, 1] ​​return numpy.ma.masked_array Y))

You can then normalize the colouration which should solve your problem, if I have understood it correctly 

  imported Import matplotlib.pylab as plt data = numpy.random.random ((30, 95)) plt.figure () plt.imshow (data, cm = "hot", ideal = set_ cbar_zero ()) plt.show ()

Comments

Post a Comment

Popular posts from this blog

import - Python ImportError: No module named wmi -

-
I followed the instructions for downloading WMI for Python When I try to run the code for C.Win32_Service (StartMode = "Auto", state = "Stopped") import wmi c = wmi.WMI (): if Raw_input ("restart% s?"% S.Caption) .upper () == "Y": s.StartService () I got the error traceback (most recent call end): file ". \", Line 1, edit: I am using Python 2.7.6 EDIT2: I am running 64-bit Windows 2008 R2, and I've downloaded WMI-1.4.9.zip (md5). I removed the content and put it in D: Python \ Tools \ Scripts I executed dragon setup.py.install I said D : \ Python \ tools \ scripts to% PATH% and when I execute the code for C.Win32_Service (StartMode = "Auto", state = "Stopped") import wmi c = Wmi.WMI (): If raw_input ("Restart% s?"% S. Caption). () == "Y": s.StartService () error me Gets traceback (most recent call final): File ". See \", line 1, & lt; Modu...
Read more

Editing Python Class in Shell and SQLAlchemy -

-
I am working on the terminal on a shell script after this tutorial SQLAlchemy tutorial. I need to type gt; & Gt; & Gt; Sqlalchemy import column, integer, string & gt; & Gt; & Gt; Class user (base): __tablename__ = 'users' id = column (integer, primary_key = true) name = column (string) absolute name = column (string) password = column (string) def __repr __ (self): return "& lt ; User (name = '% s', absolute name = '% s', password = '% s') & gt; "% (Self.name, self.fullname, self.password) After the problem I have typed the password = column (string) I hit twice and changed .... >> I then took everything back but then an error was thrown because the class already exists ... I am not completely sure how to fix it. How do I open that slip in the shell script and edit it (Add DF to DRR) The error thrown below: / user / giripeters / TFSQLLX / Lib / python2.7 / site-packages / sqlalchemy / ext / decla...
Read more

lua - HowTo create a fuel bar -

-
I would like to create a fuel bar (empty with full tank). When the user touches the screen, the fuel once Dairejh these is my code: lifeBar = display.newImage ( "fuel_bar1.png") lifeBar.anchorX = 0 lifeboats. ======================== Lifetime Y = 37 screens Group: The Insert function (called Laifbar) However, I fuel Kansmoshn (equivalent to "pressed" variable to reduce the fuel tank "true") Have used. When pressed == is true, it means that the user is touching the screen: processed (fuel) processed () if life & gt; 0 and pressed == true remains = life - life 1 Life = life =. Wide-1 remains Value.text = string.format ("% d", life) End of this This function is active as the entrance event: runtime: addEventListener ( "Antrfrem" fuel Snsadna) it is very well, but my question is: pressed variable each time 5 seconds (once = = True) How is it possible to reduce the vitality width? I tried to add it to my touch even...
Read more