Plot time series data
9 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
first, sorry for my english
i have the data below
2022-08-27T00:00:00.019538 16065
2022-08-27T00:00:00.044538 16871
2022-08-27T00:00:00.069538 16800
2022-08-27T00:00:00.094538 16574
2022-08-27T00:00:00.119538 17022
2022-08-27T00:00:00.144538 17021
2022-08-27T00:00:00.169538 16746
2022-08-27T00:00:00.194538 16948
first column is date and time, second column is data
I want to make a timeseries plot, I've tried with
ts = timeseries(data, time)
and then i get error
Error using datenum (line 189)
DATENUM failed.
Error in timeseries/init (line 318)
[~, data, quality, I] = timeseries.utsorttime(datenum(time),...
Error in timeseries (line 343)
this = init(this,varargin{:});
Caused by:
Error using datevec (line 217)
Failed to lookup month of year.
how to make timeseries from data above? thank you
2 Kommentare
Walter Roberson
am 30 Aug. 2022
Are you sure you need timeseries()? Would it be plausible to instead use the newer timetable() ?
Antworten (2)
Star Strider
am 30 Aug. 2022
Bearbeitet: Star Strider
am 30 Aug. 2022
Try something like this —
C = {'2022-08-27T00:00:00.019538' 16065
'2022-08-27T00:00:00.044538' 16871
'2022-08-27T00:00:00.069538' 16800
'2022-08-27T00:00:00.094538' 16574
'2022-08-27T00:00:00.119538' 17022
'2022-08-27T00:00:00.144538' 17021
'2022-08-27T00:00:00.169538' 16746
'2022-08-27T00:00:00.194538' 16948};
DT = datetime(C(:,1), 'InputFormat','yyyy-MM-dd''T''HH:mm:ss.SSSSSS', 'Format','yyyy-MM-dd HH:mm:ss.SSSSSS')
T1 = table(DT, cell2mat(C(:,2)))
figure
plot(T1{:,1}, T1{:,2})
grid
xtickformat('mm:ss.SSS')
xtickangle(30)
If your data are in a file, use readtable and then do the appropriate datetime conversion as I outlined here.
.
0 Kommentare
Lei Hou
am 31 Aug. 2022
>> C = {'2022-08-27T00:00:00.019538' 16065
'2022-08-27T00:00:00.044538' 16871
'2022-08-27T00:00:00.069538' 16800
'2022-08-27T00:00:00.094538' 16574
'2022-08-27T00:00:00.119538' 17022
'2022-08-27T00:00:00.144538' 17021
'2022-08-27T00:00:00.169538' 16746
'2022-08-27T00:00:00.194538' 16948};
>> DT = datetime(C(:,1), 'InputFormat','yyyy-MM-dd''T''HH:mm:ss.SSSSSS', 'Format','yyyy-MM-dd HH:mm:ss.SSSSSS');
>> numericValue = cell2mat(C(:,2));
>> tt = timetable(numericValue,'RowTimes', DT)
tt =
8×1 timetable
Time numericValue
__________________________ ____________
2022-08-27 00:00:00.019538 16065
2022-08-27 00:00:00.044538 16871
2022-08-27 00:00:00.069538 16800
2022-08-27 00:00:00.094538 16574
2022-08-27 00:00:00.119538 17022
2022-08-27 00:00:00.144538 17021
2022-08-27 00:00:00.169538 16746
2022-08-27 00:00:00.194538 16948
>> stackedplot(tt)
0 Kommentare
Siehe auch
Kategorien
Mehr zu Time Series Events finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!