What is a double matrix?
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Zach Hanses on 11 Dec 2021
Commented: Awais Saeed on 11 Dec 2021
I have data that I need to convert into a double matrix. How do I do that ?
Decimal point data (aka floating pointer numbers) can be represented as either single precision numbers or double precesion numbers. Single precision data takes 32bits in memory while double precision data takes 64bits. The greater the number of bits, the higher the accuracy. But you can easy tell that double precision costs you more memory. Read more here.
If it is a string, read about str2num, str2double.
If it is a single, use double.
If it is a sym class, use double.
A = magic(4) % data type is double
s = single(A) % convert double to single
d = double(s) % convert single to double
Walter Roberson on 11 Dec 2021
retime() works fine with single precision.
dates = datetime('2000-01-01') + calmonths(0:3:35).'
data = randn(size(dates), 'single')
TT = timetable(dates, data)
TT5 = retime(TT, 'yearly', 'mean')
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