Timeseries data in Matlab

2 次查看（过去 30 天）

Sarah Yun 2019-11-12

评论： Sarah Yun 2019-11-12

Hello.

I have data in a textfile.

There are five variables in columns.

Date in Years - 2015 to 2018
Time in Months (0 - 12)
Time in Days - (0 - 30 or 31 depending on length of the month)
Time in Hours (0 - 23)
Wind speed recorded at every hour (0 - 23) for every day.

I want to make a timeseries plot to show the temp (on y axis) and time on x-axis for the period 2015 to 2018.

How can I do this? What functions do I need to do this?

Thank you.

John D'Errico 2019-11-12

Start by learning MATLAB. That is, read the getting started tutorials, since these are pretty basic questions.

That is, you need to read in your data. textread might be a good place to start.

Then, convert it to a single time variable. datetime might be a good idea here.

Finally, plot. A good place to start there is the function plot.

Sarah Yun 2019-11-12

Hello!

A = readtable('textfilename')
% This produces a table. 
% 4 columns of this table relate to time: year, month, day, hour
t = datetime(Y,M,D,H,MI,S)

How should I use these 4 columns in the datetime function above?

Thank you.

MATLAB Language Fundamentals Data Types Time Series

在 Help Center 和 File Exchange 中查找有关 Time Series 的更多信息

Find the treasures in MATLAB Central and discover how the community can help you!

Translated by