Skip to main content

How to produce three new columns from one column that has unequal length in Python (pandas or Numpy)

I have a column that is a list of names, some have titles and some don't, how do I create the right columns for the right length for each row?

Names

Simon Cool
Mrs. Sarah Smart
Mr Harry Adams
Rupert Clever
Miss Jane Super

But I would like to have

Title    First Name     Last Name
         Simon          Cool
Mrs.     Sarah          Smart
Mr       Harry          Adams
         Rupert         Clever
Miss     Jane           Super

My code that does not work is:

import pandas as pd
title = []
firstname = []
lastname = []

saluations = ['Mr', 'Mr.', 'Mrs', 'Mrs.', 'Miss', 'Ms', 'Ms.', 'Dr.', 'Lord', 'Lady']


x = df.names.str.split(' ').str[0]
y = df.names.str.split(' ').str[1]
z = df.names.str.split(' ').str[-1]

if x in saluations:
    title.append(x)
    firstname.append(y)
else:
    firstname.append(x)
lastname.append(z)

I have also tried:

import pandas as pd
for a in df.names.str.split(' ').str[0]:
    for b in df.names.str.split(' ').str[1]:
        if a in saluations:
            title.append(a)
            firstname.append(b)
        else:
            firstname.append(a)
        
for c in df.names.str.split(' ').str[-1]:
    lastname.append(c)

Any help you have for me I would be very grateful and also any pointers that would make my code neater.



source https://stackoverflow.com/questions/73327740/how-to-produce-three-new-columns-from-one-column-that-has-unequal-length-in-pyth

Comments

Popular posts from this blog

Why is my reports service not connecting?

I am trying to pull some data from a Postgres database using Node.js and node-postures but I can't figure out why my service isn't connecting. my routes/index.js file: const express = require('express'); const router = express.Router(); const ordersCountController = require('../controllers/ordersCountController'); const ordersController = require('../controllers/ordersController'); const weeklyReportsController = require('../controllers/weeklyReportsController'); router.get('/orders_count', ordersCountController); router.get('/orders', ordersController); router.get('/weekly_reports', weeklyReportsController); module.exports = router; My controllers/weeklyReportsController.js file: const weeklyReportsService = require('../services/weeklyReportsService'); const weeklyReportsController = async (req, res) => { try { const data = await weeklyReportsService; res.json({data}) console...

How to show number of registered users in Laravel based on usertype?

i'm trying to display data from the database in the admin dashboard i used this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count(); echo $users; ?> and i have successfully get the correct data from the database but what if i want to display a specific data for example in this user table there is "usertype" that specify if the user is normal user or admin i want to user the same code above but to display a specific usertype i tried this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count()->WHERE usertype =admin; echo $users; ?> but it didn't work, what am i doing wrong? source https://stackoverflow.com/questions/68199726/how-to-show-number-of-registered-users-in-laravel-based-on-usertype

The number of nodes and edges I calculated manually and by a method provided by networkx library dont match

I am trying to analyse a graph using networkx library in Python. I have implemented a function that returns the nodes and edges of that graph. After that I counted the number of nodes and edges by implementing the len() function for nodes and edges, which gave me 17 for both nodes and edges. However, when I used the method graph.number_of_nodes() of networkx library it gave me 53. My code: import pandas as pd import networkx as nx import matplotlib.pyplot as plt header_list = ["a","b","w"] E =pd.read_csv("aves-barn-swallow-contact-network.edges",sep=" ",header= None,names=header_list) # print(E.head()) # prints first few rows of the csv file G = nx.from_pandas_edgelist(E,"a","b",["w"]) nx.draw(G) plt.show() class GraphAnalyse: #finding nodes and edges def nodeEdge(self,Graph): nodes = Graph.nodes() edges = Graph.edges() ...