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Aug 30, 2017 at 6:35 comment added user83346 @user1761806 an element is a row. The notation is explained in the link at the beginning of the answer
Aug 29, 2017 at 22:17 comment added Reddspark what is x and x_i? If my X is an input of 5 columns, and 100 rows, what would x and x_i be?
Aug 29, 2017 at 19:26 comment added Reddspark "for each element of my training sample" -- is element here referring to a row or column (i.e. feature )
Apr 13, 2017 at 12:44 history edited CommunityBot
replaced http://stats.stackexchange.com/ with https://stats.stackexchange.com/
Aug 22, 2015 at 7:42 history edited user83346 CC BY-SA 3.0
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Aug 22, 2015 at 7:37 history edited user83346 CC BY-SA 3.0
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Aug 22, 2015 at 7:31 history edited user83346 CC BY-SA 3.0
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Aug 21, 2015 at 14:58 history edited user83346 CC BY-SA 3.0
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Aug 21, 2015 at 4:09 history edited user83346 CC BY-SA 3.0
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Aug 20, 2015 at 18:08 history edited user83346 CC BY-SA 3.0
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Aug 20, 2015 at 17:53 history edited user83346 CC BY-SA 3.0
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Aug 20, 2015 at 17:41 history edited user83346 CC BY-SA 3.0
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Aug 20, 2015 at 17:26 history edited user83346 CC BY-SA 3.0
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Aug 20, 2015 at 17:05 history answered user83346 CC BY-SA 3.0