Find and replace value

I am working with a time table and wanna replace values==0 or less than i.e:800 with the value of the day before. how can i do it?

[Ameer Hamza]

Can you share a small sample of your table in a mat file?

[Hamed Hedayatnia]

yes, of course

[Hamed Hedayatnia]

values in data_sum_daily.Var1 should be considered.

Answer 1

[Ameer Hamza]

Try this

load('data_sum_rad.mat');

data_sum_daily.Var1(data_sum_daily.Var1==0) = nan;
data_sum_daily.Var1 = fillmissing(data_sum_daily.Var1, 'previous');