plotting two data sets with different number of data point against one time series x axis

Question

Lia Kirtadze 2022-2-5

回答： Voss 2022-2-5

I have two data sets

first data set consists of 86 400 elements because it is taken in every seconds

second data set is the same data set but taken in every minute therefore its number is less and equals to 1440

is there any way to plot those two data sets against one x axis which contains time corresponding to first data set

thank you in advance

Answer 1

Voss 2022-2-5

% generate some random data for demonstration:

% second data:

data_1 = randn(86400,1)+(1:86400).'/40000;

% minute data:

data_2 = mean(reshape(data_1,60,[]),1).';

% pick a number between 0 and 60 to adjust how they line up:

second_offset = 30;

% plot:

figure();

plot(data_1);

hold on

plot((1:numel(data_2))*60-second_offset,data_2,'LineWidth',2);