Skip to main content

Get complete list up to the last unique value using Python and Pandas

My goal is to get the complete list up until the last unique value. Ideally, I would like methods for performing this operation Pythonically and using Pandas, but a single method solution will work great. Also, I need to preserve the ordering of the list.

Also, in my example shown below, the last unique value happens to be the largest value in the list. This is not necessarily true for my application. The last unique value in my list can take on any value; meaning, it could be the smallest, the largest, or any value in between.

Below I show the progress I have made so far.

import pandas as pd

data_dict = {"RAW": [4000076160, 5354368, 4641792, 4641792, 4289860736, 982783232, 2122384768,
                     4136386944, 5440384, 4772864, 4772864, 4289881216,                     
                     4270354816, 4293477248, 4286243840, 4286243840, 3400832, 982783232, 2122384768],
             "ADC_TYPE": [3, 7, 8, 8, 9, 10, 11,
                          3, 7, 8, 8, 9,                          
                          3, 7, 8, 8, 9, 10, 11]}

df = pd.DataFrame(data_dict)
print(df)

The returned DataFrame (i.e. df):

           RAW  ADC_TYPE
0   4000076160         3
1      5354368         7
2      4641792         8
3      4641792         8
4   4289860736         9
5    982783232        10
6   2122384768        11
7   4136386944         3
8      5440384         7
9      4772864         8
10     4772864         8
11  4289881216         9
12  4270354816         3
13  4293477248         7
14  4286243840         8
15  4286243840         8
16     3400832         9
17   982783232        10
18  2122384768        11

I can use the following piece of code, but it will not return the complete list up to the last unique value.

unique_types = df["ADC_TYPE"].unique().tolist()  # return type is python list
print(unique_types)

Which returns:

[3, 7, 8, 9, 10, 11]

My goal is to return:

[3, 7, 8, 8, 9, 10, 11]

I have searched through this forum and Google, but I have not found a solution to my problem thus far. I have found several examples that return a list of unique values, but not an example that returns the complete list up until the last unique value. Thanks!



source https://stackoverflow.com/questions/73476394/get-complete-list-up-to-the-last-unique-value-using-python-and-pandas

Comments

Popular posts from this blog

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

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 split a rinex file if I need 24 hours data

Trying to divide rinex file using the command gfzrnx but getting this error. While doing that getting this error msg 'gfzrnx' is not recognized as an internal or external command Trying to split rinex file using the command gfzrnx. also install'gfzrnx'. my doubt is I need to run this program in 'gfzrnx' or in 'cmdprompt'. I am expecting a rinex file with 24 hrs or 1 day data.I Have 48 hrs data in RINEX format. Please help me to solve this issue. source https://stackoverflow.com/questions/75385367/how-to-split-a-rinex-file-if-i-need-24-hours-data