{"id":7802,"date":"2021-07-02T14:29:04","date_gmt":"2021-07-02T18:29:04","guid":{"rendered":"https:\/\/blogs.mathworks.com\/community\/?p=7802"},"modified":"2021-07-02T15:43:13","modified_gmt":"2021-07-02T19:43:13","slug":"7802","status":"publish","type":"post","link":"https:\/\/blogs.mathworks.com\/community\/2021\/07\/02\/7802\/","title":{"rendered":"Update Heroes: Evergreen Contributions to the File Exchange"},"content":{"rendered":"
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File Exchange developer Randy Souza (you've heard of Souza's Law<\/a>, right?) was looking at some file updates coming through the other day, and he noticed something remarkable. Erik Johnson's arrow contribution<\/a> was being updated. We always love to see updates, but this one was special because the file was originally contributed back in 2003.<\/div>\n
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This one file may be older than many of the people who use the File Exchange! In addition to its longevity, the arrow file has a number of accolades to brag about. It was a File Exchange Pick of the Week way back in 2009<\/a>, and it was a Popular File of the Year in 2013 and 2014.<\/div>\n
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Just look at the beautiful ASCII art on that help entry! You don't see quality craftsmanship like that anymore.<\/div>\n
Erik Johnson is on the faculty of the Civil Engineering Department at the University of Southern California<\/a>, where he's been teaching for as long as arrow has been on the File Exchange. Thank you, Dr. Johnson, for keeping your little hero moving with the times.<\/div>\n

The Hall of Update Heroes<\/h2>\n
All this got me thinking: how many files can boast of that kind of legacy? I asked to Randy to pull up a list of files that were contributed in the first five years of the File Exchange (2001-2006) and that were also updated in the most recent five years (2016-2021). Here's what he found.<\/div>\n
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t = readtable(\"files.xlsx\"<\/span>)<\/span><\/div>\n
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t = 27\u00d75 table <\/span><\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/th>\nName<\/th>\nShortName<\/th>\nLink<\/th>\nFirst<\/th>\nLatest<\/th>\n<\/tr>\n<\/thead>\n
1<\/th>\n'ellipse.m'<\/td>\n'ellipse.m'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/289'<\/td>\n09-Oct-1998<\/td>\n16-Mar-2021<\/td>\n<\/tr>\n
2<\/th>\n'mixed'<\/td>\n'mixed'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/200'<\/td>\n08-Sep-2000<\/td>\n20-Nov-2020<\/td>\n<\/tr>\n
3<\/th>\n'arrow'<\/td>\n'arrow'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/278'<\/td>\n15-Jan-2003<\/td>\n13-May-2021<\/td>\n<\/tr>\n
4<\/th>\n'Calculates\u00a0inverse\u00a0Z-transform\u00a0by\u00a0long\u00a0division'<\/td>\n'Inverse\u00a0Z-transform'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/1752'<\/td>\n30-May-2002<\/td>\n11-Jul-2020<\/td>\n<\/tr>\n
5<\/th>\n'Reshape\u00a0triggered\u00a0data\u00a0acquisition\u00a0analog\u00a0input\u00a0data'<\/td>\n'Reshape\u00a0triggered\u00a0data'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/2184'<\/td>\n22-Aug-2002<\/td>\n04-Dec-2019<\/td>\n<\/tr>\n
6<\/th>\n'lombscargle.m'<\/td>\n'lombscargle.m'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/993'<\/td>\n09-Apr-2003<\/td>\n17-Jul-2020<\/td>\n<\/tr>\n
7<\/th>\n'Useful\u00a0Figure\u00a0Management\u00a0Utilities'<\/td>\n'Figure\u00a0Management\u00a0Utilities'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/3162'<\/td>\n25-Mar-2003<\/td>\n04-Dec-2019<\/td>\n<\/tr>\n
8<\/th>\n'RLS\u00a0Algorithm\u00a0Demo'<\/td>\n'RLS\u00a0Algorithm\u00a0Demo'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/1753'<\/td>\n31-Oct-2003<\/td>\n11-Jul-2020<\/td>\n<\/tr>\n
9<\/th>\n'Adaptive\u00a0Filtering'<\/td>\n'Adaptive\u00a0Filtering'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/3582'<\/td>\n13-Jun-2003<\/td>\n18-Feb-2020<\/td>\n<\/tr>\n
10<\/th>\n'Hatched\u00a0Fill\u00a0Patterns'<\/td>\n'Hatched\u00a0Fill\u00a0Patterns'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/1736'<\/td>\n28-May-2002<\/td>\n29-Dec-2018<\/td>\n<\/tr>\n
11<\/th>\n'linelabel'<\/td>\n'linelabel'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/2383'<\/td>\n06-Jun-2003<\/td>\n26-Nov-2019<\/td>\n<\/tr>\n
12<\/th>\n'Time\u00a0Series\u00a0Viewer'<\/td>\n'Time\u00a0Series\u00a0Viewer'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/4288'<\/td>\n23-Dec-2003<\/td>\n04-Dec-2019<\/td>\n<\/tr>\n
13<\/th>\n'timetick\u00a0-\u00a0legacy'<\/td>\n'timetick\u00a0-\u00a0legacy'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/4300'<\/td>\n24-Dec-2003<\/td>\n04-Dec-2019<\/td>\n<\/tr>\n
14<\/th>\n'timestr'<\/td>\n'timestr'<\/td>\n'https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/4299'<\/td>\n24-Dec-2003<\/td>\n04-Dec-2019<\/td>\n<\/tr>\n
\u22ee<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
Here's the same list with the hyperlinks in place so you can visit them more easily.<\/div>\n