ape | 易学教程

JAVA记录文件中单词的数量

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运行截图：实现代码： 1 package Ape; 2 3 import java.io.BufferedReader; 4 import java.io.File; 5 import java.io.FileNotFoundException; 6 import java.io.FileReader; 7 import java.io.IOException; 8 import java.util.regex.Matcher; 9 import java.util.regex.Pattern; 10 11 public class CountPlus1 { 12 13 public CountPlus1() { 14 // TODO Auto-generated constructor stub 15 } 16 17 public static void main(String[] args) { 18 // TODO Auto-generated method stub 19 String temp=null; 20 Pattern pattern=Pattern.compile("[^a-zA-Z]"); //匹配非字母 21 Pattern pattern1=Pattern.compile("^[a-zA-Z]{3,}"); //剔除无意义单词如：is，a,at等 22

R phylo object: how to connect node label and node number

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问题 A phylo object in R can have internal node labels ( phylo_obj$node.label ), but many R functions use node numbers instead of the node labels. Even the phylo object itself uses node numbers to describe the edges ( phylo_obj$edge ) and does not seem to have a direct mapping of internal node labels to these node numbers used for phylo_obj$edge . How do I map node labels (eg., "NodeA" or "Artiodactyla") to the node number (eg., 250 or 212)? I can't find any R functions or generally any docs on

Ajax Push Engine (APE) Vs Node.js

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I am considering few options for pushing data from server to the client for my web application in real time. I have implemented a polling based (each client sends http requests to the server after every 30 secs.) application which really doesn't scale up after 10 users are in. This app. is built using MySQL, PHP, HTML and jQuery. Kindly suggest which one would be better considering the requirements below - APE Vs node.js Should be able to handle at least 400 concurrent connections at a time Server should be able to push data to all these clients. Clients would be sending across data between