how to replace values in a table that are missing with the previous value in matlab

To replace missing values in a table with the previous non-missing value in MATLAB, you can use the fillmissing function along with the 'previous' method.

Here is an example of how to replace missing values in a table named myTable:

main.m
% Example table with missing values
myTable = table([1; NaN; 3; NaN; NaN], [NaN; 2; NaN; NaN; 5], 'VariableNames', {'Column1', 'Column2'});

% Replace missing values with the previous non-missing value
filledTable = fillmissing(myTable, 'previous');

% Display the filled table
filledTable
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The resulting table filledTable will have the missing values replaced with the previous non-missing values in each column. Note that this method only propagates the previous non-missing value forwards and does not interpolate missing values.

The resulting filled table will be:

main.m
    Column1    Column2
    _______    _______

       1          NaN  
       1            2  
       3            2  
       3            2  
       3            5  
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This way, missing values in a table can be replaced with the previous value in MATLAB using the fillmissing function with the 'previous' method.