Plot ratio of 2 timeseries data on MATLAB

Hi, I'm in the process of creating a plot of a variable Pr = Pideal/Pchange, whereas 'Pideal' are the timeseries values of ideal power output and Pchange are timeseries values of powerout subject to certain outage. Now as I do Pr = Pideal/Pchange, The MATLAB gives me an error. Here a1=zb1/z1 is the same as Pr = Pideal/Pchange.for plotting I just write plot (a1); I'm a beginner. Appreciate the help.

[Ankit]

normally it should work. Is it possible to upload your data as *.mat file?

[thoughtGarden]

Just confirmed that in general, this should work:

timeS1 = timeseries(linspace(1,2));
timeS2 = timeseries(linspace(1,5));
timeS1/timeS2

  timeseries

  Common Properties:
            Name: 'unnamed'
            Time: [100x1 double]
        TimeInfo: [1x1 tsdata.timemetadata]
            Data: [1x1x100 double]
        DataInfo: [1x1 tsdata.datametadata]

  More properties, Methods

though it is possible your timeseries are not the same length

timeS1 = timeseries(linspace(1,2));
timeS2 = timeseries(linspace(1,5,50));
timeS1/timeS2

Error using timeseries/utArithCommonTime (line 9)
Time series lengths are mismatched.

Error in timeseries/mrdivide>localmrdivide (line 58)
    [commomTimeVector,outprops,warningFlag] = utArithCommonTime(ts1,ts2);

Error in  /  (line 26)
        tsout = localmrdivide(ts1,ts2);

Answer 1

[Jesús Zambrano]

Hi Syed,

If you want to divide two vectors, use ./ command instead of / command.

This will do the division element-by-element. The two vectors should have the same size.

You can get more information by typing the following in the command window:

help ./

Best,

Jesús