Community Profile


Josiah Renfree


7 total contributions since 2007

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.
Professional Interests: signal processing, oceanography, finance, stocks, options


Contributions in
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hist_stock_data(start_date, end_date, varargin)
Used to retrieve historical stock data for a user-specified date range

2 months ago | 165 downloads |


Re: converting int to float
Here's what I do: typecast(x, 'single') If x was read in as an int8 but stored as a double, try the following: typecast(int8(...

1 year ago | 49684 views


getDepth(latitude, longitude)
Obtain seabed depth at any location using high-resolution GMRT database

1 year ago | 1 download |


Distance calculation using Haversine formula
Compute the distance between two locations using the Haversine formula

3 years ago | 24 downloads |


Historical Volatility
Calculates the annualized historical volatility for a stock over the previous N trading days.

7 years ago | 7 downloads |


RSI calculator
Calculate the RSI for a stock over any time range for any given period

9 years ago | 4 downloads |


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

10 years ago | 0 downloads |