Attempting to access the length of a matplotlib axis label with this code:
for label in ax.xaxis.get_ticklabels()[1::2]:
print(len(label))
However I am getting an error that the object does not have a length attribute. print(label[2]) also errors out with a similar error.
Matplotlib's text objects can't be accessed through standard indexing - what you're looking for is the get_text() attribute found in the text object documentation. E.g.
for label in ax.xaxis.get_tick_labels()[1::2]:
print(len(label.get_text()))
maplotlib text objects use a '-' that can't convert to a number? ``` In [66]: secax.get_yticklabels()[0].get_text() Out[66]: '−2.5' In [67]: type(a.get_text()) Out[67]: str In [68]: type(a.get_text()), a Out[68]: (str, Text(1, -2.5, '−2.5')) In [69]: float(a.get_text()) --------------------------------------------------------------------------- ValueError Traceback (most recent call last) <ipython-input-69-d347a578a778> in <module> ----> 1 float(a.get_text()) ValueError: could not convert string to float: '−2.5' ```
'−' used by matplotlib is a different minus character (unicode 8722) compared to the regular '-' (unicode 45). If you do float(a.replace('−', '-').get_text()), that should workThe labels you are iterating over from get_ticklabels() are matplotlib.text.Text objects. To access the actual text in that object, you can use get_text().
So, something like this should work:
for label in ax.xaxis.get_ticklabels()[1::2]:
print(len(label.get_text()))
Note that this length may include special characters (e.g. latex $ mathmode delimiters) as it is the length of the raw text string
