finance

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node.js streaming finance data from Yahoo or Google

UPDATE: I want to continuously receive data.Currently, this returns one data set.I think the onl开发者_JS百科y alternative is polling/setInterval techniques that achieve only the effect of streaming.[详细]

2023-02-27 07:44 分类：问答
Charting Millions of Rows

Got a quick question on Charting. Need: I need to implement charting for my client and the client dataset contains millions of rows. Data is collected about the target every 10 seconds or so, and it[详细]

2023-02-26 21:06 分类：问答
Parallelize a rolling window regression in R

I\'m running a rolling regression very similar to the following code: library(PerformanceAnalytics) library(quantmod)[详细]

2023-02-25 21:18 分类：问答
Rolling median in python

I have some stock data based on daily close va开发者_如何学编程lues.I need to be able to insert these values into a python list and get a median for the last 30 closes.Is there a python library that d[详细]

2023-02-20 14:37 分类：问答
How do programs like quicken access financial institution data?

Basically, I like the idea of managing my money and finances, but would love to build the software customized to how I manage my money. Quicken and Microsoft Money and the likes offer nice solutions,[详细]

2023-02-18 15:45 分类：问答
How to vectorize: set a value based on last time a binary vector was 1

I have another开发者_C百科 R beginner question... How can I vectorize (avoid for loop in) following code:[详细]

2023-02-18 15:39 分类：问答
Python - Finance Matplotlib related

I\'m new to python and I\'m testing the finance matploblib module. I need to get the price and date values when the ma20 = ma50[详细]

2023-02-14 02:55 分类：问答
Change value of some column in xts based on other columns values with lookback

I have the following xts object (representing long/short entries (column 1 and 2) and exit (columns 3 and 4) triggerswith \"aggregate\" signal column which should be 1 (system is long), -1 (system is[详细]

2023-02-13 14:01 分类：问答
Rank ordering xts objects representing some property of equities using R

I am trying to rank order equities (by return for example). As a result I would like to receive a table containing names of stocks in ascending/descending order (parameter to this rank order function)[详细]

2023-02-12 16:45 分类：问答
processing negative number in "accounting" format

I have dataset, which negative value is presented with a bracket around the number i.e. (10)==-10, it is in csv format, how can I process it so that R will inte开发者_如何学Crpret the (10) as -10? Tha[详细]

2023-02-12 15:42 分类：问答