Change main plot legend label text

Question

So far I have been able to label the subplots just fine but I'm having an issue with the main one.

Here's the relevant part of my code:

data_BS_P = data[channels[0]] data_BS_R = data[channels[1]] data_BS_Y = data[channels[2]] plot_BS_P = data_BS_P.plot() #data_BS_P is a pandas dataframe axBS = plot_BS_P.gca() axBS.plot(data_BS_R, label='Roll') axBS.plot(data_BS_Y, label='Yaw') axBS.set_ylabel('Amplitude (urad)') axBS.legend(loc='upper center', bbox_to_anchor=(0.5, 1.05), ncol=3,             fancybox=True, shadow=True) ml1 = MultipleLocator(10) ml2 = MultipleLocator(3600) axBS.yaxis.set_minor_locator(ml1) axBS.xaxis.set_minor_locator(ml2) plot_BS_P.save('L1-SUS-BS_M1_DAMP_PRY_INMON.jpg') 

And this is what I have so far: Notice the lengthy label for the blue line. I'd like that to be labeled as "Pitch" instead of the file name. In which line can I do that?

Answer 1

Another way:

ax.legend(labels=mylabels) 

Answer 2

You need to gain access of the legend() object and use set_text() to change the text values, a simple example:

plt.plot(range(10), label='Some very long label') plt.plot(range(1,11), label='Short label') L=plt.legend() L.get_texts()[0].set_text('make it short') plt.savefig('temp.png') 

In your case, you are changing the first item in the legend, I am quite sure the 0 index in L.get_texts()[0] applies to your problem too.