mapr stock

1. I want to view the changes in stock information in real time. I compared the stock API of Sina, Netease, and yahoo with a delay of 15 minutes. The returned data of Sina is in csv format, while that of Netease is in json format. Therefore, Netease's stock API is used. 2. Use the following format to query stock inform

Question Recently, \ (\ Text {lxhgww} \) became addicted to investing in stocks. After a period of observation and learning, he summed up some rules of stock quotations. Through a period of observation, \ (\ Text {lxhgww} \) predicted the trend of a stock in the future \ (T \) Day, the \ (I \) the daily stock purchase price is per share \ (ap_ I \), and the sales

1. The difference between stock and funddon't put the eggs in the same basket . Buying stocks is like putting an egg in the same basket, and once the basket has turned upside down, the whole basket of eggs is finished. Similarly, if you use your money to buy a stock or multiple stocks, once the company's share price falls, the money you buy will be lost.Put the eggs in different baskets . You take out a sum

One trick per day: three key tricks for stock exchange font: size skin: favorites 2015-06-30 11:00:03Stock market such as battlefield, there is no forever right and wrong, only to recognize the situation, adjust the thinking, homeopathy and for, is the way to win. In the choice of shares, stock exchange on how to take advantage of, targeted, can follow the following several principles:　　First, to replac

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 are in most of the transactions.Note:Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again).Thought: My brain is more stupid, the idea is more unpopular, and high efficiency.The maximum time complexity is O (n^2), the minimum

no.10--State Sea Securities in the All-in-one edition The site provides the national Sea Securities in one version of the download, the National Maritime Securities of the first edition of the software is a set of quotes, analysis, trading, information in the stock software. no.9--Wanguo the same flush Wanguo Flush is a Wanguo online securities trading software. no.8--founder Securities Spring Friends Professional Edition Founder Securities Sprin

The calculation formula of purchase quantity of single goods is generally: The best purchase quantity = Low limit ≤ (planned dosage + inventory low limit – on-hand inventory) ≤ inventory High-limit which Inventory low limit must be guaranteed, inventory high-limit in the procurement for reference only. On-hand inventory = existing physical stock + in-transit inventory Existing physical stock = Posted Invent

The recent stock market is hot, many employees outside the work of the online stock, everyone feel like to ban the stock software is a very difficult thing, because it may be using the HTTP protocol, if you want to ban the stock software unless the Internet. So many companies can only open one eye and one eye closed. C

The recent stock market is hot, many employees outside the work of the online stock, everyone feel like to ban the stock software is a very difficult thing, because it may be using the HTTP protocol, if you want to ban the stock software unless the Internet. So many companies can only open one eye and one eye closed. C

Ideas :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.code : OJ Test code runtime:111 ms1 classSolution:2 #@param prices, a list of integers3 #@return An integer4 defMaxprofit (Self, prices):5 #Non

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 are in most of the transactions.Note:Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again).Problem Solving Ideas:Since it is a two-time deal, it is divided into two areas. First, according to the idea of a transaction to cal

Before using Sina's stock data, because Sina Http/javascript lacks some data, uses the chrome own development tool to monitor the Teng Xun financial HTTP information, obtains the following method to obtain the stock data. Take Wuliangye as an example, to get the latest quotes, access the data interface: [HTML] http://qt.gtimg.cn/q=sz000858 return data: [HTML] v_sz000858= "51~ Wuliangye ~000858~27.78~27.60~

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. Transactions at the most K .Note:Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again).Credits:Special thanks to @Freezen for adding this problem and creating all test cases.Based on Dynamic PlanningMaintain II vectors:gpro:to Da

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 are in most of the transactions.Note:Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again).Code : runtime:175 ms1 classSolution:2 #@param prices, a list of integers3 #@return An integer4 defmaxprofit_with_

R get Stock dataSeveral pkg in R provide the online download of stock data Essentials, if you have to find a better, then quantmod well-deserved! For example, to download the market data in Shanghai, the code can be:library(quantmod)SSE head(SSE)possible:library(quantmod)setSymbolLookup(SSE=list(name="000001.SS", src="yahoo"))getSymbols("SSE")head(SSE)These are the essentials recommended by Jeff Ryan (Quant

Now in the hand is a securities information type of app, which involves the stock market interface, the market has chart and so on, see a lot of people on the Internet to seek this information, so I specially wrote a demo here to share with you. Here's how it works: The background map is the use of canvas first draw a rectangle, and then draw a few dotted lines, the EMA is drawn through the path, in short the drawing is very simple, I do not intro

The February 29 News reported that South Korea's only stock exchange, the Korean Exchange (KRX), will create an over-the-counter (OTC) platform using block-chain technology. The trading system developed by the Korean Exchange, which uses the underlying bitcoin and other digital currency codes, is at an early stage of development, The Korea Times reported. The exchange's representative told the media that the platform could help its OTC traders reduce

Sina's financial channel has always felt good. But because of the recent slow speed, the Web page is always open when viewing stock information. have been studying Ajax for several days, so I made a page with jquery to automatically read real-time data on Sina stock. Accustomed to using prototype, replace the script part of the code. Copy code code as follows: Of course, the page par

Problem-solving ideas: Record two states: 1, currently, there is a stock when the maximum yield Havstock = max (Havstock, Nonstock-prices[i]) 2, currently, no stock when the maximum yield nonstock = max (nonstock, hav Stock + prices[i]) State transfer formula is listed above. Class Solution {public : int Maxprofit (vector

Recently, I joined the beili stock trading group. Under the guidance of many mentors of my predecessors, I had a preliminary understanding of the stock market and successfully completed the transformation from Xiao Bai to cainiao. As the stock market fluctuates and the number of people in the group continues to increase, many proletarian people in North China hav