I have a dataset which contains multiple columns. On analysis, I found out that there were few columns which contain just a single value. There was 0 in all the rows of these columns. Does it hold any information or should I remove such columns from the dataset?
Few columns were also like that it contains 100k rows of type1 and 3-4 rows of type2. Should i also remove this columns or let them remain as such?
Note: Target column is different than the columns described.