CODEWITHSUNDEEP
pandasmatplotlib
Fifo
Fifo

Reputation: 55

Multiple Axes and Plots

sorry if the post, is not that good. It's the first one for me on Stack Overflow. I have Datasets in the following structure:

     Revolution1   Position1   Temperature1   Revolution2   Position2   Temperature2
        1/min        mm            C            1/min         m            C
        datas....

I plot these against the time. Now I want for every different unit a new y axis. So i looked in the matplotlib example and wrote something like this. X ist the X-Values and d is the pandas dataframe:

fig,host=plt.subplots()
fig.subplots_adjust(right=0.75)
par1 = host.twinx()
par2 = host.twinx()

uni_units = np.unique(units[1:])
par2.spines["right"].set_position(("axes", 1.2))

make_patch_spines_invisible(par2)
# Second, show the right spine.
par2.spines["right"].set_visible(True)
for i,v in enumerate(header[1:]):
    if d.loc[0,v] == uni_units[0]: 
        y=d.loc[an:en,v].values
        host.plot(x,y,label=v)
    if d.loc[0,v] == uni_units[1]:
      (v,ct_yax[1]))
        y=d.loc[an:en,v].values
        par1.plot(x,y,label=v)
    if d.loc[0,v] == uni_units[2]: 

        y=d.loc[an:en,v].values
        par2.plot(x,y,label=v)

see the plot i get here...

EDIT: Okay i really missed to ask the question (maybe i was nervous, because it was the first time posting here):

I actually wanted to ask why it does not work, since i only saw 2 plots. But by zooming in I saw it actually plots every curve...

sorry!

Upvotes: 0

Views: 66

Answers (1)

Cedric Zoppolo
Cedric Zoppolo

Reputation: 4743

If I understand correctly what you want is to get subplots from the Dataframe.

You can achieve such using the subplots parameter within the plotfunction you have under the Dataframe object.

With below toy sample you can get a better idea on how to achieve this:

import matplotlib.pyplot as plt
import pandas as pd
df = pd.DataFrame({"y1":[1,5,3,2],"y2":[10,12,11,15]})
df.plot(subplots=True)
plt.show()

Which produces below figure: enter image description here

You may check documentation about subplots for pandas Dataframe.

Upvotes: 2

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