date to string conversion

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when using the following code s value is prited as '00000'
Help me what the problem is.. dtntm field has date and time
aa=(DD_SlantSmoothTEC(j).dtntm);
aaa=datestr(aa);
s=strcat(aaa(1:2),aaa(4:6));
fn1=sprintf('%s%s','DD-VTEC Vs UT,HYDE-IISC PRN PAIR DAY ',s);
title(fn1);
  1 Comment
Stephen23
Stephen23 on 27 Dec 2021
Do NOT use the outdated, deprecated, imprecise DATESTR, DATEVEC, or DATENUM.
The DATESTR documentation states: "While datestr returns text representing dates and times, it is recommended that you use datetime values to represent points in time, and then convert them to text using the char, cellstr, or string functions."

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Accepted Answer

Stephen23
Stephen23 on 27 Dec 2021
Edited: Stephen23 on 27 Dec 2021
Ugh, do NOT use DATESTR. This is easier without using the old, imprecise, deprecated functions:
aa = datetime('now','Format','ddMMM');
fn1 = sprintf('%s%s','DD-VTEC Vs UT,HYDE-IISC PRN PAIR DAY ',aa)
fn1 = 'DD-VTEC Vs UT,HYDE-IISC PRN PAIR DAY 27Dec'
  1 Comment
Adam Danz
Adam Danz on 27 Dec 2021
+1 yeah, don't use datestr....

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More Answers (1)

Adam Danz
Adam Danz on 27 Dec 2021
Edited: Adam Danz on 27 Dec 2021
Assuming you want the date formatted as ddmmm ( see additional format options ),
aa = datetime('now') % or aa = now() for double representation
aa = datetime
27-Dec-2021 17:45:06
s = datestr(aa,'ddmmm')
s = '27Dec'
fn1 = sprintf('%s%s','DD-VTEC Vs UT,HYDE-IISC PRN PAIR DAY ',s)
fn1 = 'DD-VTEC Vs UT,HYDE-IISC PRN PAIR DAY 27Dec'
  2 Comments
Lakshmi Chodavarapu
Lakshmi Chodavarapu on 28 Dec 2021
Able to succesfully save the files as requirded. Thanks agan for giving me a precious opportunity to learn.

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