Error using datenum (line 201) DATENUM failed.
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Help me!
I have this error, and I don't know why.
Error using datenum (line 201)
DATENUM failed.
Caused by:
Error using dtstr2dtnummx
Failed to convert from text to date number.
My script is this:
[ndata, text, alldata]=xlsread('positive_read_Copia.xlsx'); % inside there are data (dd/mm/yyyy hh:mm:ss) and coordinates
date=date.';
tmp=char(date);
tmp_date=datenum(tmp,'dd/mm/yyyy HH:MM');
DateVector = datevec(tmp_date);
Date_minute=(tmp_date-tmp_date(1))*24*60; % Time, in minutes compared to the 1st georeferenced tweet
clear tmp;
2 Kommentare
Cris LaPierre
am 18 Nov. 2021
Please share your spreadsheet. You can attach it using the paperclip icon.
Antworten (1)
Stephen23
am 18 Nov. 2021
Bearbeitet: Stephen23
am 18 Nov. 2021
Do not use outdated, discouraged, deprecated DATENUM (or for that matter DATEVEC or DATESTR).
Import your data using READTABLE, which automatically identifies the dates and imports them as DATETIME objects:
T = readtable('positive_read_Copia.xlsx')
D = T.tweet_created_at - T.tweet_created_at(1)
M = minutes(D)
4 Kommentare
Sean de Wolski
am 18 Nov. 2021
You'll also want to look at https://www.mathworks.com/help/releases/R2021b/stats/dbscan.html and either geobubble or geoplot https://www.mathworks.com/help/releases/R2021b/matlab/ref/geoplot.html.
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