Timeseries data in Matlab

Hello.

I have data in a textfile.

There are five variables in columns.

1. Date in Years - 2015 to 2018
2. Time in Months (0 - 12)
3. Time in Days - (0 - 30 or 31 depending on length of the month)
4. Time in Hours (0 - 23)
5. 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.

[Adam Danz]

Without know much about the text file, I'd start with readtable() to read in the data from the text file.

https://www.mathworks.com/help/matlab/ref/readtable.html

Then I would use datetime() to convert your years/months/days/hours into datetime format.

https://www.mathworks.com/help/matlab/ref/datetime.html?searchHighlight=datetime&s_tid=doc_srchtitle#d117e274976

Then you can just use plot(datetimeValues, WindSpeeds) to show your data.

If you get stuck, leave a comment with your code and an explanation of where you're stuck and I'd be glad to help further.

[John D'Errico]

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]

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.