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How do I get the row count of a Pandas DataFrame? 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 a number you can use programatically then df shape [0]
python - Renaming column names in Pandas - Stack Overflow 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
python - What is df. values [:,1:]? - Stack Overflow df values is gives us dataframe values as numpy array object df values [:, 1:] is a way of accessing required values with indexing It means all the rows and all columns except 0th index column in dataframe
Why do df and du commands show different disk usage? 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 system usage, du is to report the file space usage du works from files while df works at filesystem level, reporting what the kernel says it has available
Delete a column from a Pandas DataFrame - Stack Overflow df drop(df columns[[0]], axis=1, inplace=True) There is an optional parameter inplace so that the original data can be modified without creating a copy Popped Column selection, addition, deletion Delete column column-name: