Why am I getting this matplotlib error for plotting a categorical variable?

Question

I feel stupid but I cannot seem to fix this error or find any solution online. Why do I keep getting the following error no matter how I try to plot it using matplotlib?

For instance even the following code gives me the same error -

names = list(fig1['day'])
values = list(fig1['count'])
fig, axs = plt.subplots(figsize=(25, 10))
axs.bar(names, values, color='plum')

matplotlib.category: Using categorical units to plot a list of strings that are all parsable as floats or dates. If these strings should be plotted as numbers, cast to the appropriate data type before plotting.

UPDATE: I found the solution - https://discourse.matplotlib.org/t/why-am-i-getting-this-matplotlib-error-for-plotting-a-categorical-variable/21758/2

Answer 1

Actually the right solution is this, because is more generic, applies not only to calendar objects:

fig, ax = plt.subplots()

names = ['Monday', 'Tuesday', 'Wednesday']
# you may try with: 
# names = ['1111', '2222', '3333']

# This variable is a range (numerical values) and we pass it for number of ticks on X axis:
rln = range(len(names))

values = [230, 112, 12]
ax.bar(rln, values)

# Finally, we are setting ticks labels on X axis:
plt.xticks(rln, names)
plt.show()