'FloatSolution' object has no attribute 'number_of_objectives'

[fiksdano]

There was an error when I tried to visualize the sample code:line 68, in plot
dimension = front[0][0].number_of_objectives
AttributeError: 'FloatSolution' object has no attribute 'number_of_objectives'

[ajnebro]

Please, could you indicate the file containing the error?

[mrisong]

Hi,
Facing the same issue.

Please, could you indicate the file containing the error?

---

AttributeError Traceback (most recent call last)
Cell In[3], line 4
1 from jmetal.lab.visualization import Plot
3 plot_front = Plot(title='Pareto front approximation', axis_labels=['x', 'y'])
----> 4 plot_front.plot(front, label='NSGAII-ZDT1', filename='NSGAII-ZDT1', format='png')

File ~/Documents/venve/lib/python3.12/site-packages/jmetal/lab/visualization/plotting.py:68, in Plot.plot(self, front, label, normalize, filename, format)
65 if len(front) != len(label):
66 raise Exception("Number of fronts and labels must be the same")
---> 68 dimension = front[0][0].number_of_objectives
70 if dimension == 2:
71 self.two_dim(front, label, filename, format)

AttributeError: 'FloatSolution' object has no attribute 'number_of_objectives'

[ajnebro]

The number_of_objectives of class FloatSolution was refactored as a method called number_of_objectives(). Any reference to the former should be replaced by the latter in the current version of the project in GitHub.