Hi Tazkera, I think you just need to make the 'test_plots' directory. I don't think matplotlib will do that for you. -Nathan On Thu, Apr 28, 2016 at 5:38 PM, tazkera haque <h.tazkera@gmail.com> wrote:

Hi,

I am trying to create a max_dens and max_temp sweep plot in yt. I am using the following code

for n in range (0,118):

fn = flashFolder+'super3d_hdf5_plt_cnt_%04d' % n pf = yt.load(fn) # load data #print pf.current_time

c = pf.h.find_max('temp')[1] ax = 0 # take a line cut along the x axis

# cutting through the y0,z0 such that we hit the max density #ray = ds.h.ortho_ray(ax, (c[1], c[2]))

# ray with start and end point

ray = pf.h.ray([0.,0.,0.],c)

# Sort the ray values by 'x' so there are no discontinuities # in the line plot srt = np.argsort(ray['x'])

plt.subplot(211) plt.semilogy(np.array(ray['x'][srt]), np.array(ray['dens'][srt])) plt.ylabel('dens') plt.subplot(212) plt.semilogy(np.array(ray['x'][srt]), np.array(ray['temp'][srt])) plt.xlabel('x') plt.ylabel('temp')

plt.savefig("test_plots/den_temp_xsweep.png")

and getting the the following error:

IOError: [Errno 2] No such file or directory: 'test_plots/den_temp_xsweep.png'

Any suggestion on how to fix this error is highly appreciated.

THanks

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