IT Nursery
So I’m trying to make this program that will ask the user for input and store the values in an array / list. Then when a blank line is...
I have a pandas dataframe. I want to print the unique values of one of its columns in ascending order. This is how I am doing it: import pandas...
As I can understand documentation the following definitions are equivalent: create table foo ( id serial primary key, code integer, label text, constraint foo_uq unique (code, label)); create table...
I need to find unique rows in a numpy.array. For example: >>> a # I have array([[1, 1, 1, 0, 0, 0], [0, 1, 1, 1, 0, 0], [0,...
I would like to set up a table in PostgreSQL such that two columns together must be unique. There can be multiple values of either value, so long as...
I have a ksh script that returns a long list of values, newline separated, and I want to see only the unique/distinct values. It is possible to do this?...
This question already has answers here: Generate three different random numbers [duplicate] (2 answers) Closed 8 years ago. I know how to generate a random number within a range...
This question already has answers here: Pandas ‘count(distinct)’ equivalent (10 answers) Closed 3 years ago. I need to count unique ID values in every domain. I have data: ID,...
Assuming I have the following: var array = [ {"name":"Joe", "age":17}, {"name":"Bob", "age":17}, {"name":"Carl", "age": 35} ] What is the best way to be able to get an array...
Is there a built-in that removes duplicates from list in Python, whilst preserving order? I know that I can use a set to remove duplicates, but that destroys the...