4, Case: Analysis on Influencing Factors of second-hand house prices in Beijing
Operation requirements:
Dependent variable analysis: analysis of house price per unit areaIndependent variable analysis: 1> Distribution of independent variables 2> Analysis of the influence of independent variables on dependent variablesEstablish house price prediction model 1> Linear regression model 2> Linear model with loga ...
Posted on Mon, 29 Nov 2021 16:43:10 -0500 by d.shankar
Basic operation of string in Python
1, String
A string can be understood as an ordinary piece of text. In python, quotation marks are used to represent a string. The effects of different quotation marks will be different.
str = 'Hello World' # A pair of single quotation marks
str = "Hello World" # A pair of double quotation marks
str = 'Tom said:"I am Tom!"' # A pair of sing ...
Posted on Mon, 29 Nov 2021 14:04:46 -0500 by Liquid Fire
Is the parameter passed by python function a value or a reference?
1. Introduction
# Definition for singly-linked list.
# class ListNode:
# def __init__(self, val=0, next=None):
# self.val = val
# self.next = next
class Solution:
def mergeTwoLists(self, list1: Optional[ListNode], list2: Optional[ListNode]) -> Optional[ListNode]:
dummy = ListNode()
p = dummy
...
Posted on Mon, 29 Nov 2021 12:40:50 -0500 by BrandonE97
OneOS positioning function evaluation + development details
This article shares the official account of OneOS WeChat public. Positioning function evaluation + development details>.
In order to show you
OnePos location service capabilities
Reproduction of subway track
Took the subway for most of the day
I'm tired
You must see this video
Click this jump demo video
A small p ...
Posted on Mon, 29 Nov 2021 10:25:24 -0500 by greensweater
Modeling essays series 88 project metadata practice 6-PM2 implementation process review
explain
stay Modeling essays series 84 project metadata practice 5 Based on the design of.
If the time spent organizing the application in a brainless way is 1, the time spent this time is about 1.5. Time consumption ratio: 1.5
On the whole, the results are quite satisfactory. There are several strong experiences:
It takes more time th ...
Posted on Mon, 29 Nov 2021 08:52:04 -0500 by secret007
License plate recognition based on HyperLPR
2021SC@SDUSC
Source code download address: HyperLPR: HyperLRP is an open source, high-performance Chinese license plate recognition library based on deep learning. It is developed by Beijing Zhiyun View Technology Co., Ltd. and supports PHP, C/C + +, Python language and Windows/Mac/Linux/Android/IOS platform.
See the first analysis for detail ...
Posted on Mon, 29 Nov 2021 07:08:05 -0500 by garethj
Redis distributed lock for Python multithreading
preface
In many Internet product applications, some scenarios need to be locked, such as double 11 second kill, global incremental ID, floor generation, etc.
Most of the solutions are implemented based on DB. Redis is a single process and single thread mode. The queue mode is used to change concurrent access into serial access, and there is no ...
Posted on Mon, 29 Nov 2021 04:57:44 -0500 by geetakhurana
The national marriage rate has declined for five consecutive years. Why do young people dare not get married?
When reading the headlines yesterday, I found that the number of marriage registrations has decreased for seven consecutive years, reaching a new low in 17 years last year
I was stunned
A closer look shows that in 2020, the number of officially registered marriages totaled 8143300 pairs, a decrease of 1.13 million pairs compared with 20 ...
Posted on Mon, 29 Nov 2021 02:06:17 -0500 by hbalagh
python data type
python data type
1, Numerical type
2, Character type
3, Container data type
Numerical type
1. Integer
x = 3
print(id(x))
x = 5
print(id(x))
# id(): Returns an integer representing the address of the variable in memory
# Above two id The returned values are obviously different, indicating that the addresses of variable values are different
...
Posted on Mon, 29 Nov 2021 01:06:09 -0500 by kante
[Flower Book Notes | Torch Edition] Manual in-depth learning 201: Preparatory knowledge
2021.11.20 New pit!!!
This article includes content: 2 chapters Preparatory knowledge: 2.1 Mathematical operations, 2.2 Data preprocessing, 2.3 linear algebra
2 Preparatory knowledge
2.1 Data operations
2.1.1 Getting Started
Creating torch-type data
import torch
x = torch.arange(12)
x
tensor([ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, ...
Posted on Sun, 28 Nov 2021 21:53:59 -0500 by LMarie