Recent questions tagged column

+4 votes

1 answer

R : Compute the mean of each column of dataframe

asked Jul 6 in Programming Languages by kush (4.4k points)

+4 votes

1 answer

R : find the number of rows and columns in a dataframe

asked Jun 29 in Programming Languages by praveen (16.0k points)

+4 votes

1 answer

How to add a new column to a 2D Numpy array or matrix

asked Jun 16 in Programming Languages by pythonuser (17.9k points)

+4 votes

1 answer

MySQL: how to find the value with max length in a column

asked Aug 30, 2020 in Databases by phpuser (8.2k points)

+2 votes

1 answer

How to change the position of columns of a pandas dataframe

asked Feb 13, 2020 in Programming Languages by pythonuser (17.9k points)

+2 votes

1 answer

How to add a new column to an existing pandas dataframe

asked Feb 13, 2020 in Programming Languages by pythonuser (17.9k points)

+2 votes

1 answer

How to select multiple columns from a Pandas Dataframe

asked Dec 6, 2019 in Programming Languages by pythonuser (17.9k points)

+2 votes

1 answer

How to drop column(s) of a Pandas dataframe

asked Nov 18, 2019 in Programming Languages by pythonuser (17.9k points)

+2 votes

1 answer

Rename some of the columns of a Pandas DataFrame

asked Nov 17, 2019 in Programming Languages by pythonuser (17.9k points)

+2 votes

1 answer

Find the number of elements less than 'N' in each column of a Pandas DataFrame

asked Oct 18, 2019 in Programming Languages by pythonuser (17.9k points)

+2 votes

1 answer

How to get the datatype of all columns of a PostgreSQL table

asked Sep 13, 2019 in Databases by praveen (16.0k points)

+2 votes

1 answer

Count the occurrence of a string in the nth column of a file using awk

asked Mar 19, 2019 in Programming Languages by praveen (16.0k points)

+2 votes

1 answer

PostgreSQL : How to select value from a column of range type

asked Jun 4, 2018 in Databases by praveen (16.0k points)

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