Error using datetime - Input data must be one numeric matrix when converting from a different date/time representation.

I have a 1443x1 double which is made up of time matlab serial numbers but when I try to use datetime to convert the serial numbers to the format HH:mm:ss.SSS I get the following error: "Input data must be one numeric matrix when converting from a different date/time representation." How do I convert the double to make this work? Thanks in advance!

Answer 1

[Cris LaPierre]

Typically you would use the 'ConvertFrom' name-value pair.

t = datetime(X,'ConvertFrom',dateType)

Select the appropriate datatype here.

[Gillian Murray]

This is what I was using: t = datetime('serialtime','ConvertFrom','datenum','Format','HH:mm:ss.SSS'); with serialtime being the 1443x1 double

[Steven Lord]

Don't pass in the char vector 'serialtime'. Pass in the variable serialtime.

x = 'abracadabra';
length('x') % the word 'x' is 1 character long

ans = 1

length(x) % the word stored in the variable named x is 11 characters long

ans = 11