Python Implementation of Naive Bayesian Classification (NBC) (Discrete)

Python Implementation of Naive Bayesian Classification (NBC) Introduction to Bayesian Classification naive bayesian classification Naive Bayesian premise formula programming Reading Data from Excel Calculating the probability of event Cj occurrence Calculate the probability of each event under new conditions Forecast Oper ...

Posted by penkomitev on Mon, 06 May 2019 02:25:38 -0700

[Javaweb] poi implements importing data into database in batches by uploading excel tables

1. Import poi-related jar packages For excel, which only operates on 2003 and previous versions, only poi-XXX.jar needs to be imported. If you need to operate on 2007 and later versions, you need to import poi-XXX.jar. poi-ooxml-XXX.jar poi-ooxml-schemas-XXX.jar Maven mode 1 <dependency> 2 <groupId>org.apache.poi ...

Posted by suresh1 on Thu, 18 Apr 2019 20:12:35 -0700

Spring Learning Experience (10) -- Reconstructing mvc with annotations

We used two examples, document and Mvc, and now we use annotations to reconstruct: document: //Class document @Component("document") public interface Document { public void read(); public void write(); } //Management category @Component("documentManager") public class DocumentManager { //Applying resource to attribute assig ...

Posted by Kainproductions on Thu, 18 Apr 2019 16:57:33 -0700

Implementing Element Periodic Table by Web Pure Front-end "Sunrise Map"

I. What is a sunrise chart? Sunrise chart is a new chart added in Excel 2016. Some are similar to pie charts. The advantage of pie charts is that they can show the proportion. But pie charts can only display single-level data. Sunrise maps are used to represent the proportion of multi-level data. Sunrise maps are displayed in a hierarchical ma ...

Posted by sabbagh on Mon, 15 Apr 2019 00:45:32 -0700

Android manipulates Excel files

When operating Excel files in Android to export reports, the open source library jxl is mainly used. It was first used in java, but it can also be used in Android. Similar POI can only be used in java, not Android, because there are many dependency libraries.Using JXL needs to import jxl.jar package into Android project. JXL can complete the ba ...

Posted by steves on Sat, 13 Apr 2019 12:45:32 -0700

120 lines of code to crawl the Douban Film top250

The author recently learned to crawl, and practiced with Douban Movie. But Douban Movie has anti-crawling mechanism. After climbing 250, I will redirect and ask me to do the landing operation. So I only crawl the first 50 for related tests this time. Nonsense, let's look at the source code. This time we used requests library, Be ...

Posted by dirkadirka on Thu, 11 Apr 2019 00:09:33 -0700

Notes on Linux Practical Teaching 18: A Speech by awk of the three Linux Swordsmen

awk of the Three Swordsmen of Linux (Foundation and Advancement) Label (Space Separation): Linux Practical Teaching Notes - Chen Siqi Quick jump directory: * Chapter 1: Introduction to awk Basics * 1.1: Introduction to awk * 1.2: After awk, you can master: * 1.3: Introduction to awk environment * 1.4: awk format * 1.5: Mode Acti ...

Posted by norpel on Mon, 08 Apr 2019 12:27:32 -0700

How JS Customizes Button Export in FineReport

FineReport supports a variety of different export methods. It is very fast and convenient to use the built-in Export button of FineReport directly to output various formats. But when we integrate Web pages, we often only want to embed the report content into iframe, while the buttons on the toolbar and toolbar will be hidden, and the custom but ...

Posted by Ammar on Sun, 07 Apr 2019 15:48:32 -0700

R Language Learning Notes _Data Cleaning 1

Before importing data Clear demand Understanding data Data quality Import data Supporting multiple data sources text file read.table,read.csv,read.delim scan Excel file csv, prn format + read.csv Clipboard + read.delim xlsx extension package rodbc package Data cleaning Missing Value Processing NA,NaN,Inf,-Inf Identifying missing ...

Posted by boiy on Thu, 04 Apr 2019 09:21:31 -0700

pandas ExcelWriter customized format (customized header, rendering color, etc., non-ExcelWriter standard creation mode)

pandas ExcelWriter customized format (customized header, rendering color, etc., non-ExcelWriter standard creation mode) Excel Writer plug-in has a pit that the format that has been set can not be changed. Therefore, when converting from pandas to excel, the format must be cleared, especially the format of the header. The code is as follows: i ...

Posted by Germaris on Tue, 02 Apr 2019 00:06:29 -0700