CODEWITHSUNDEEP
pythonmatplotlibvisual-studio-code
Luguecos
Luguecos

Reputation: 341

How to solve " 'PathCollection' object has no attribute 'yaxis' " error?

I'm a MSc Student and I used to make graphs and plots with commercial packages like OriginPro, Excel and Matlab. Although these softwares provide a great user experience, there are some major disadvantages as they are specific OS dependent and, in general, very expensive.

Hence, I started to learn Python using matplotlib library with VS Code, however I'm having some problems with some library functions and statements that seems to be standard from matplotlib and numPy, but it doesnt work.

For example, I'm making some templates for scatter plots and I can't control minor ticks because it doesn't recognize the statements xaxix and yaxix:

Sample of the code:

import numpy as np
import matplotlib.pyplot as plt
from matplotlib.ticker import MultipleLocator, AutoMinorLocator

.
.
.

fig = plt.figure(figsize=(x_pixels/my_dpi, y_pixels/my_dpi), dpi=my_dpi)
ax = plt.scatter(x*format_x, y*format_y, s = size, alpha = transparency, color = color, label = legend_text)

.
.
.

# Major Ticks
plt.tick_params(axis = 'both', which = 'major', length = majorT_length, direction = majorT_direction, color = majorT_color, labelsize = label_size, top = 'on', right = 'on')

# Minor Ticks
plt.minorticks_on()
plt.tick_params(axis='both', which='minor', length = minorT_length, direction = minorT_direction, color = minorT_color, top = 'on', right = 'on')
ax.yaxis.set_minor_locator(AutoMinorLocator(2))
ax.xaxis.set_minor_locator(AutoMinorLocator(2))

# Figure Layout
plt.tight_layout()
plt.savefig(output_file, dpi=my_dpi, bbox_inches=borders)

plt.show()

and the Terminal show this error:

enter image description here

  File "c:/Users/luagu/Desktop/Python Matplotlib Training/Scatter_Template.py", line 128, in <module>
    ax.yaxis.set_minor_locator(AutoMinorLocator(2))
AttributeError: 'PathCollection' object has no attribute 'yaxis'

What I'm doing wrong?

Thanks in advance!

Upvotes: 2

Views: 22026

Answers (1)

Guimoute
Guimoute

Reputation: 4629

You wrote ax = plt.scatter but your ax here is an artist returned by the scatter method, not an Axes object. What you want to do is: 

plt.scatter(...)
...
ax = plt.gca()
ax.yaxis.set_minor_locator(AutoMinorLocator(2))
ax.xaxis.set_minor_locator(AutoMinorLocator(2))

Upvotes: 6

Related Questions