invisible plot

Community matplotlib-users
1

I'm a newbie to matplotlib. When I try to generate a simple plot, nothing
happens. Any advice will be appreciated. Here's my code:

from numpy import *
from matplotlib import *

x= arange(0,10.,0.1)
y= x**1.5 - 0.25*x**2

pyplot.figure(figsize=(9, 6), dpi=120)
pyplot.plot(x, y)

···

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2

pyplot.show()

···

On 2009-07-15 16:58, Dr. Phillip M. Feldman wrote:

I'm a newbie to matplotlib. When I try to generate a simple plot, nothing
happens. Any advice will be appreciated. Here's my code:

from numpy import *
from matplotlib import *

x= arange(0,10.,0.1)
y= x**1.5 - 0.25*x**2

pyplot.figure(figsize=(9, 6), dpi=120)
pyplot.plot(x, y)

--
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
  that is made terrible by our own mad attempt to interpret it as though it had
  an underlying truth."
   -- Umberto Eco

3

Add this to the end of the script (after all the plotting):

pyplot.show()

Ryan

···

On Wed, Jul 15, 2009 at 4:58 PM, Dr. Phillip M. Feldman <pfeldman@…2680…0…> wrote:

I’m a newbie to matplotlib. When I try to generate a simple plot, nothing

happens. Any advice will be appreciated. Here’s my code:

from numpy import *

from matplotlib import *

x= arange(0,10.,0.1)

y= x1.5 - 0.25*x2

pyplot.figure(figsize=(9, 6), dpi=120)

pyplot.plot(x, y)

–
Ryan May
Graduate Research Assistant
School of Meteorology

University of Oklahoma

4

Dr. Phillip M. Feldman wrote:

I'm a newbie to matplotlib. When I try to generate a simple plot, nothing
happens. Any advice will be appreciated. Here's my code:

from numpy import *
from matplotlib import *

x= arange(0,10.,0.1)
y= x**1.5 - 0.25*x**2

pyplot.figure(figsize=(9, 6), dpi=120)
pyplot.plot(x, y)

pyplot.show()

Or run inside "ipython -pylab".

Eric

5

Hmm, I don't think you copied that quite right.
Anyway::

    import numpy as np
    from matplotlib import pyplot as plt

    x= np.arange(0,10.,0.1)
    y= x**1.5 - 0.25*x**2

    fig = plt.figure(figsize=(9, 6), dpi=120)
    myplot = plt.plot(x, y)

    plt.show()

Alan Isaac

···

On 7/15/2009 5:58 PM Dr. Phillip M. Feldman apparently wrote:

I'm a newbie to matplotlib. When I try to generate a simple plot, nothing
happens. Any advice will be appreciated. Here's my code:

from numpy import *
from matplotlib import *

x= arange(0,10.,0.1)
y= x**1.5 - 0.25*x**2

pyplot.figure(figsize=(9, 6), dpi=120)
pyplot.plot(x, y)

6

Hi Phillip,

Don't you need to call

pyplot.show()

at the end of the script?

Regards,
--Damon

···

On 15 Jul 2009, at 22:58, Dr. Phillip M. Feldman wrote:

I'm a newbie to matplotlib. When I try to generate a simple plot, nothing
happens. Any advice will be appreciated. Here's my code:

from numpy import *
from matplotlib import *

x= arange(0,10.,0.1)
y= x**1.5 - 0.25*x**2

pyplot.figure(figsize=(9, 6), dpi=120)
pyplot.plot(x, y)
--
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