Mar 19, 2019 · I have a pandas dataframe, df: c1 c2 0 10 100 1 11 110 2 12 120 How do I iterate over the rows of this dataframe? For every row, I want to access its elements (values in cells) …

Apr 11, 2013 · could use df.info () so you get row count (# entries), number of non-null entries in each column, dtypes and memory usage. Good complete picture of the df. If you're looking for …

Question What are the differences between the following commands? df df -h df -l Feedback Information is greatly appreciated. Thank you.

To just get the index column names df.index.names will work for both a single Index or MultiIndex as of the most recent version of pandas. As someone who found this while trying to find the …

To focus on the need to rename of replace column names with a pre-existing list, I'll create a new sample dataframe df with initial column names and unrelated new column names.

I import a dataframe via read_csv, but for some reason can't extract the year or month from the series df['date'], trying that gives AttributeError: 'Series' object has no attribute 'year': date ...

Aug 21, 2020 · df.values returns a numpy array with the underlying data of the DataFrame, without any index or columns names. [:, 1:] is a slice of that array, that returns all rows and …

15 Ok, lets check the man pages: df - report file system disk space usage and du - estimate file space usage Those two tools were meant for different propose. While df is to show the file …

@TomAugspurger: like usual, I'm probably missing something. df, both mine and his, is a DataFrame. countries is a list. df[~df.countries.isin(countries)] produces a DataFrame, not a …

66 This answer is to iterate over selected columns as well as all columns in a DF. df.columns gives a list containing all the columns' names in the DF. Now that isn't very helpful if you want …