mapr stock

Python Crawler crawls stock informationThe project requirement in our group is to grab stock information online and then make a visual interface. The first idea was to take advantage of Java crawling, but because Java code was a bit redundant, it decided to use Python. At the beginning of the project, there was a huge problem, because the team members have limited knowledge of Python, we decided to start by

transaction management, so when buying a stock, there was a decrease in the amount of account in the database, but the number of shares did not increase.Let's say one of the demoFirst, the entire frame structure. 　　 Entity class: Bank account Accoount.java Package Com.vrv.yinkailong.bean; Bank account public class Accoount { private Integer aid; Private String Aname; Account name private double balance; Account balance Public A

to simulate the keyboard and mouse to operate some software, such as brokerage version trading software and big intelligence. Another way is to find and change the underlying code of these software about the transaction commands. I don't know if it is actually feasible .. In this way, retail investors have to rely on technology if they don't have any funds. However, I think that the accuracy of prediction is higher than the timeliness of transactions under the T + 1 rule. It is good to spend ti

This article describes a simple stock acquisition tool, which collects the stock trend information of the same flush, and uses the php command line mode to write. Only some of the collection functions are completed, and the output data is copied to execl (or ET) for analysis, which is more convenient than any background. Next we will study it together. Let's just talk about the implementation code. The mai

In general, if you want to know the stock market, you must log on to the professional stock website and enter the company code to see the specific stock price. In fact, with the XMLHTTP Protocol, each of us can provide the stock market details query service on our personal website. This article describes how to use ASP

Let's talk about the differences between p2p financial systems and stock allocation systems. We are working on a case where the stock allocation system and p2p system are integrated. Therefore, we will analyze the functions of the p2p financial system and the functions of the stock allocation system. I. Core Process and Function Analysis of

Several days ago the optimization of the stock distribution website was issued:The following were: Record of optimization of stock distribution website (IV.) Record of optimization of stock distribution website (III.) Record of optimization of

Title DescriptionDespite their innate prudence, the cows took a beating in the home mortgage market and now is trying their hand at stocks . Happily, Bessie is prescient and knows not only today's S (2 Given The matrix of current and future stock prices on various days (1 Consider the example below of a bull (i.e., improving), the kind Bessie likes most. s=2 stocks and d=3 days. The cows has ten units of money to invest.Today ' s price| Tomorrow ' s p

Original: Wave king If you want to keep yourself undefeated, you must conduct macro analysis. let's first talk about the stock market over the years. Premier Zhu has attached importance to the stock market and proposed that state-owned enterprises should be out of stock for three years, ben Wang began to be more careful when dealing with

A short article that describes the essence of a ten thousand stock books! (Post) In fact, if you have mastered the theory of moving average, you will be able to make enough money; In fact, only one stock can be bought and sold in a year; In fact, if your funds are less than 1 million Yuan, doubling a year is not difficult; In fact, drawing a line chart of individual stocks on a daily basis will keep y

The original title link is here: https://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-cooldown/Topic:Say you has an array for which the i-th element is the price of a given-stock on day I.Design an algorithm to find the maximum profit. Many transactions as (ie, buy one and sell one share of the stock multiple times) with the FO Llowing Restrictions:

121.Say you has an array for which the i-th element is the price of a given-stock on day I.If you were-permitted-to-complete at most one transaction (ie, buy one and sell one share of the stock), design an AL Gorithm to find the maximum profit.classSolution { Public: intMaxprofit (vectorint>prices) { intn =prices.size (); if(N 1) return 0; intMini = prices[0], ans =0, I; for(i =1; I )

Here's the book. Risk is due to lack of professionalism In the stock market, we need to broaden our horizons constantly. Investment such as long-distance running, you insist on Long-term, supplemented by short-term, focus on stock selection, reduce blindness; wait patiently, spring comes back In addition to the interest ratio to the bank, but also to understand the average price-to-earning

Question: A stock price sequence, known at each point in time, to ask when to buy and sell the most profit? Time complexity O (n).Suppose the stock price is placed in an array in chronological order, assuming that the stock price rises and falls, that is, the stock price sequence is not diminishing. Buy and sell points

Recently began to play stock quantization, because want to do a complete stock backtesting, so the stock listing and delisting information is essential. Because we have to go back to the test must know a certain date of the composition of the Shanghai-Shenzhen stock, right. So we have to put the Shanghai and Shenzhen a

Title:Say you has an array for which the i-th element is the price of a given-stock on day I.design an algorithm to find the maximum profit. You could complete as many transactions as (ie, buy one and sell one share of the stock multiple times). However, engage in multiple transactions for the same time (ie, you must sell the stock before you buy again). /p> This

1. Click "" To enter the stock viewing interface 2. After entering the stock viewing interface, if you need to increase the stock, you need to click the button 3. Enter the stock query interface, enter the stock code to be added (such as 600050) (the input of the

How do I connect python to a trading software? How do I set the position of closing positions? Thank you so much! Reply content:I know what you mean, you just want to find a software or broker interface to upload trading instructions, your previous data capture and analysis may have been written by Python, so poor this trade instruction interface last step. For the stock of retail, the formal way is Warburg, Guo Xin, Societe Generale is willing to giv

Use the PHP Command Line Mode to collect stock trend information, and the php Command Line Let's just talk about the implementation code. The main function has only one class implementation (stock. class. php ): The call method in the command prompt is as follows (stock. php ): Direct use *\php.exe stock.php The stock