Rank: 431 based on 275 downloads (last 30 days) and 5 files submitted
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Josiah Renfree

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Company/University
SWFSC
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32.871082, -117.25232

Personal Profile:

I'm an acoustic engineer living in San Diego, CA. I work at the Southwest Fisheries Science Center, which is a part of NOAA, developing methods and techniques using sound to identify and enumerate fish populations.


 

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Files Posted by Josiah Renfree View all
Updated   File Tags Downloads
(last 30 days)
Comments Rating
13 Nov 2014 Historical Stock Data downloader Used to retrieve historical stock data for a user-specified date range Author: Josiah Renfree finance, analysis, quote prices, modeling, historical stock data, open price 169 40
  • 4.83333
4.8 | 25 ratings
26 Aug 2014 Distance calculation using Haversine formula Compute the distance between two locations using the Haversine formula Author: Josiah Renfree haversine, latitude, longitude, lat, long, distance 49 2
  • 4.0
4.0 | 2 ratings
15 Oct 2010 Historical Volatility Calculates the annualized historical volatility for a stock over the previous N trading days. Author: Josiah Renfree historical volatility, volatility, stocks, options, derivatives, finance 32 3
  • 4.0
4.0 | 1 rating
16 Apr 2008 RSI calculator Calculate the RSI for a stock over any time range for any given period Author: Josiah Renfree finance, modeling, analysis, technical indicator r... 19 3
  • 4.5
4.5 | 4 ratings
03 Apr 2007 Convert time to Windows NT format Used to convert a time vector into the time format used by Windows NT. This is the number of 100-ns Author: Josiah Renfree clock, fun, january 1, 1601, windows nt time forma... 6 2
  • 1.0
1.0 | 1 rating
Comments and Ratings by Josiah Renfree View all
Updated File Comments Rating
13 Nov 2014 Historical Stock Data Download (alternate Method) Retrieves historical stock data from Yahoo Finance by parsing html pages instead of .csv download. Author: Captain Awesome

Thanks for the info regarding the Dow Jones data. That's very odd and annoying, but it is what it is.

08 Dec 2010 Historical Stock Data downloader Used to retrieve historical stock data for a user-specified date range Author: Josiah Renfree

@Matt: Unfortunately, daily is the highest frequency that the program can obtain. I'm simply pulling data off of the Yahoo! Finance Historical Price webpage, in which you'll see that your only options are Daily, Weekly, or Monthly.

@David: As I mentioned to Matt, I pull data off of the Historical Prices section of the Yahoo! Finance page. Unfortunately, you'll notice that for the symbol JPYUSD=X, there is no Historical Prices section. I'm not sure why Yahoo doesn't include that, though, as their charts include historical data.

15 Oct 2010 Historical Volatility Calculates the annualized historical volatility for a stock over the previous N trading days. Author: Josiah Renfree

Hi David,

Thanks for pointing out the bug. I've made changes to the code now which should handle dates with days < 10.

-Josiah

15 Dec 2009 Historical Stock Data downloader Used to retrieve historical stock data for a user-specified date range Author: Josiah Renfree

To answer Gary's question, the data to account for stock splits can be found in the returned structure array under the variable AdjClose.

Comments and Ratings on Josiah Renfree's Files View all
Updated File Comment by Comments Rating
01 Oct 2014 Historical Stock Data downloader Used to retrieve historical stock data for a user-specified date range Author: Josiah Renfree Ivannnn

Thanks a lot! Well done.

27 May 2014 Historical Stock Data downloader Used to retrieve historical stock data for a user-specified date range Author: Josiah Renfree francesco

doesn't run varagin

20 Feb 2014 Historical Stock Data downloader Used to retrieve historical stock data for a user-specified date range Author: Josiah Renfree nizam

Good

09 May 2013 Distance calculation using Haversine formula Compute the distance between two locations using the Haversine formula Author: Josiah Renfree David Doria

As Jamie mentioned, deg2rad is required (which can be found here: http://www.mathworks.com/matlabcentral/fileexchange/28503). Also, it is not explicit in the doc, but the input arguments are haversine([lat1 long1], [lat2, long2]).

22 Feb 2013 Historical Stock Data downloader Used to retrieve historical stock data for a user-specified date range Author: Josiah Renfree Louise

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