调整x轴标签并防止它们在Pandas / matplotlib中被剪掉

Question

I'm trying to get a label on each x-axis point. With the current code, the labels are chopped off on the longer x-axis titles, and only every so many x axis points gets a label.

How do I make the image canvas bigger to not cutoff the x-axis labels?

How do I force each point to be labeled on the x-axis?

import pandas as pd
import matplotlib.pyplot as plt
import sys

def plotcsv(csvpath):
    pdata = pd.read_csv(csvpath)
    pdata = pdata.set_index('Build') #Adds build column for names of x axis points

    try: # sometimes there's an extra column if there were extra commas in the csv
        pdata = pdata.drop(pdata.columns[4], axis = 1)
    except:
        pass

    p = pdata.plot(title="Power vs Build", rot=-10)
    p.set_ylabel("W")
    # print(pdata.index)
    # print(pdata['Build'])
    # plt.xticks(pdata.index, rotation=90) # Doesn't work
    plt.savefig(csvpath + '.png')

Answer 1

Just add plt.tight_layout() before saving the plot.

Here's matplotlib documentation on this topic.