Some problem about the rank.py in ianvs

[Yoda-wu]

i am using the incremental learning paradigm, while produce the rank table, some straght problem occus:

1. Pandas have no attribute np

2. DataFrame object have no attribute "append"

Is that cause by the different version of pandas? but i can not find any information about pd.np

[hsj576]

The first error may caused by the wrong version of pandas, you could use "pip install pandas==1.1.5" to install the correct version of pandas.