/nodejs-coactive-stock-analysis-and-parser

Primary LanguageJavaScript

How to Use

  1. This was intended to be used as a script, since the instructions did not mention an API or corresponding front-end. With that in mind, data can be parsed simply by cding into this folder and running: node app.js <PARSED_FILE_PATH> for example: node app.js /Users/myusername/Desktop/datafile.dat It will then return an app named after the given file, with _analyzed.txt added to the end of it. It can be found in the same location as the given file, e.g. /Users/myusername/Desktop/datafile_analyzed.txt

    Please note that I had a couple of questions while making this -- some data was left out in the given file, so I will explain it below:

Limitations and Assumptions This file was made under several assumptions, particularly since I was unable to clarify.

First, I made the assumption that all files would be formatted identically to the given .dat file. Specifically, this would mean:

  1. Each row in the data will be styled the same, in plain text, with 6 columns, e.g.: 18-Jun-12 133.59 134.73 133.28 134.43 29353246

  2. Meaning that they should be as follows after parsing: [ '18-Jun-12', '133.59', '134.73', '133.28', '134.43', '29353246' ]

  3. The first row in the file is full of data labels, e.g., so we can ignore it for our calculations: [Date, Open, High, Low, Close, Volume]

  4. I assumed that the datasets will be given in descending order by date (most recent -> least recent), since that is how this dataset was given. All functions were created with that assumption.

  5. That this should not be an API or have a corresponding front-end, it should just be a nodejs script. Hence, it is just one single file with a shell command to run it.

  6. re: "What is the maximum profit potential per share, and what day(s) would you have had to buy low and sell high to get this maximum profit?"

  • I assumed that the maximum profit potential was referring to the greatest disparity between a single buy and sell (a single date-pair), meaning that an individual can not keep selling and buying the same share. Hence, I only provided one buy/sell date, unless multiple date-pairs had the same buy/sell disparity. If multiple pairs have the same buy and sell disparity, then the most recent date pair is given.
  • Currently there is no way to tell if the daily high is before or after the daily low, so buy dates and sell dates must be different dates until we get more information. The exception is if the low is the same as the close. The functions kept this in mind, so it will not pass every test in the real world
  1. Note that if you run this script, it will not over-write pre-existing files with the same name. Meaning that if you are modifying a file's data and retrying this script with it, that you should either modify the name of it first, or delete the old _analyzed.txt so that the correct file will download and open.