Python in plt draw bar charts and line charts

1. Background

In some Python data visualization functions required during plt Videos histogram and line graph.

 

2. Import

import matplotlib.pyplot as plt

 

3. Histogram

array= np.array(array)

plt.hist(array, bins=50,facecolor="red", edgecolor="red" ,linewidth=5,alpha=0.7)

    plt.xlabel("")
    plt.ylabel("")
    plt.title("")

 

4. FIG polyline

plt.figure (figsize = (num_group,. 6)) 
X-= [1,2,3,4,5,6,7,8,9] 
the Y = [1,2,3,4,5,6,7, 8,9] # line graph defines X, Y coordinates 

plt.plot (X, Y, label = str (model_name)) # line chart 

for a, B in ZIP (X, Y): 
    plt.text (a, B , '% .2f'% b, ha = 'center', va = 'bottom', fontsize = 7) # values for each point 
plt.legend (loc = 2) # display each polyline label 
plt.title ( "{}". format (eval_key )) # name showing

 

5. Save

print("=> saving {}".format(image_name))
plt.savefig(image_name)