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;
댓글 수: 2
Cris LaPierre
2021년 11월 18일
Please share your spreadsheet. You can attach it using the paperclip icon.
답변 (1개)
Stephen23
2021년 11월 18일
편집: Stephen23
2021년 11월 18일
Do not use outdated, discouraged, deprecated DATENUM (or for that matter DATEVEC or DATESTR).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)
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Sean de Wolski
2021년 11월 18일
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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