Pushing boundaries of graphics in Python

Question

I'm trying to represent information as it shown on picture 2, but result is picture 1. How can I push borders as on picture 2. `

plot = newData.copy() 
del plot['Region']; del plot['Country']; del plot['2016 Rank'] 
plot.index = range(0, 20) 
fig = plt.figure(figsize=(8,4))
plt.title('Springfield') 
plt.ylabel('CPI') 

plt.yticks(range(20,90,10)) 
plt.xticks(num.arange(5), ( '2012 Score', '2013 Score', '2014 Score', '2015 Score', '2016 Score', )) 
plt.grid(axis='both', which='major') 

for x in plot.values: 
    plt.plot(x, color='gray', linewidth=1, marker='o', markerfacecolor='gray', markersize=6) 

plt.show()

`

Please, could you add the tag of the graphic library used ? Is it _**Matplotlib**_ ? — J. Piquard, Mar 05 '17 at 14:55
Sorry, forgot. Yes, you are exactly right. import matplotlib.pyplot as plt — Airat, Mar 05 '17 at 14:58
http://stackoverflow.com/questions/14493334/add-margin-when-plots-run-against-the-edge-of-the-graph/14498142#14498142 — plasmon360, Mar 05 '17 at 15:33
@Airat, as you can see, adding the 'matplotlib' has enlarged the number of viewers and pointed to the solution. — J. Piquard, Mar 05 '17 at 16:24

score 3 · Answer 1 · edited May 23 '17 at 10:29

Here basically the inverse of this answer applies:

In matplotlib 2.x there is an automatic margin set at the edges, which ensures the data to be nicely fitting within the axis spines. By default it is set to 0.05 in units of axis span. This margin is not present by default in matplotlib versions prior to 2.x. However the command to set the margins is present also in previous versions:

plt.margins(x=0.04, y=0.06)

or

ax.margins(x=0.04, y=0.06)

depending on the context. Setting a single value for both axis directions is equally possible:

ax.margins(0.05)

Also see the documentation.

In case you want to set the margin in the whole script, you can use

plt.rcParams['axes.xmargin'] = 0.05
plt.rcParams['axes.ymargin'] = 0.05

at the beginning of your script (same for y of course). If you want set the margin entirely and forever, you might want to change the according line in the matplotlib rc file.

Alternatively to changing the margins, use plt.xlim(..) or ax.set_xlim(..) to manually set the limits of the axes such that there is no white space left.

Pushing boundaries of graphics in Python

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