Re: [astropy-dev] plotting data from astropy.table.table.Table using matplotlib

[Aldcroft, Tom]

Hi Lee,

Maybe this example will get you over the hill to having a plot:

In [1]: data = """obsid redshift  X      Y     object
   ...: 3102  0.32      4167  4085   Q1250+568-A
   ...: 877   0.22      4378  3892   "Source 82"
   ...: """                                                                    

In [2]: from astropy.table import Table                                        

In [3]: import matplotlib.pyplot as plt                                        

In [4]: %matplotlib  # Use "%matplotlib inline" in jupyter notebook
Using matplotlib backend: MacOSX

In [5]: t = Table.read(data, format='ascii')                                    

In [6]: plt.plot(t['X'], t['redshift'])                                        
Out[6]: [<matplotlib.lines.Line2D at 0x7fe97954dc10>]

Best,

Tom

On Mon, Mar 22, 2021 at 12:10 PM Lee Atkinson <lee.r.a...@gmail.com> wrote:

Hello,

I've stumbled upon and have started using astropy due to it being seemingly the only py module that supports reading from a tab formatted ascii file. 

After using ascii.read() to grab the data I want, I now run into the problem that I cant seem to figure out: how to plot the data (even with this information page https://docs.astropy.org/en/stable/visualization/matplotlib_integration.html).

My data table is pretty much analogous to the redshift table on this information page https://docs.astropy.org/en/stable/io/ascii/index.html?highlight=astropy.io.ascii (if that helps with context)

Help!

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