linear fit for dates that do not have data

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alpedhuez
alpedhuez 2020-11-25
评论： alpedhuez 2020-11-25
Suppose I have table such as
Date Visitors
-------------------------------------
"January 1" 10
"January 2"
"January 3" 15
"January 4"
"January 5"
"January 6"
"January 7" 18
"January 8"
I want to fill a linear trend for missing data
Date Visitors
-------------------------------------
"January 1" 10
"January 2" 12.5
"January 3" 15
"January 4" 15.75
"January 5" 16.5
"January 6" 17.25
"January 7" 18
"January 8"
I saw https://www.mathworks.com/matlabcentral/answers/327828-linear-fit-to-data
but what I try to do here is to apply different fit function for different intervals: the fit function for January 1 and 3 is different from the one for January 3 to 7.
  2 个评论
Walter Roberson
Walter Roberson 2020-11-25
Filling ending up with a duplicate value is not filling with linear trend.
alpedhuez
alpedhuez 2020-11-25
编辑：alpedhuez 2020-11-25
Corrected before I saw your post.

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采纳的回答

Ameer Hamza
Ameer Hamza 2020-11-25
编辑：Ameer Hamza 2020-11-25
See fillmissing(): https://www.mathworks.com/help/matlab/ref/fillmissing.html. You can use the linear method to fill the values.

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