Changing the rownames of a dataframe
135319
Convert the values in a column into row names in an existing data frame
74786
How to alter a column and change the default value?
139693
Deleting DataFrame row in Pandas based on column value
52697
Apply a function to a subset of data.table columns, by column-indices instead of name
82140
How do I delete rows in a data frame?
33391
Select rows in a dataframe in r based on values in one row
45236
Append a list as a column in a dataset
58050
How to pivot a dataframe?
9880
How do I expand the output display to see more columns of a pandas DataFrame?
157682
How do I operate on a DataFrame with a Series for every column
10631
Get the row and column name of the minimum element of a matrix
79310
Transpose a single column to multiple rows
28559
How to sort a dataframe by multiple column(s)
59062
How do I label different rows or columns of a matrix using braces?
85885
Access and preserve list names in lapply function
108113
change delimiter in a csv file
102482
Transpose a data frame