Length of variable is much shorter during a loop?

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I have a variable 'DOYfilt' that has a sizw 1408x1 double. It contains datenums so I have a for loop to convert it to datestrings. When I enter the loop, the length of DOYfilt is only 7. What do I do so that it can go through the entire length of the variable?
for i=1:length('DOYfilt')
date=datestr(DOYfilt(i) + datenum('2012/01/01'),'mm/dd/yyyy HH:MM');
u10_date=[u10_date;date];
end
  1 Comment
Stephen23
Stephen23 on 24 Jan 2021
length('DOYfilt')
measures the length of the character vector 'DOYfilt', which has seven characters. Probably you intended to get the lenght of the variable DOYfilt like this:
length(DOYfilt)

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Answers (1)

KALYAN ACHARJYA
KALYAN ACHARJYA on 24 Jan 2021
Edited: KALYAN ACHARJYA on 24 Jan 2021
This
length(DOYfilt) % Note here
Not This
length('DOYfilt')
^........'..'

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