Finding Corresponding Data at Events

I have a matrix with data in one column and corresponding time intervals in the next column. Another matrix has event times. I am wanting to get the data from the first matrix that corresponds to the event time. I feel like this is simple, but I am having issues choosing the right way to go about this. The data is continuous so I want to make sure that I am getting a good approximation of the data when event times are between intervals.

[per isakson]

How is "the event time" related to "time intervals" ? Show smalls samples of the two matricies.

[Muhammad Usman Saleem]

please post your both matrix?

[Krispy Scripts]

In first column of matrix1 is frequency data and in the second column is regular intervals of time that correspond to the frequency data. Matrix2 is time points of events that correspond to the time from matrix1. I want to take the frequency data points from matrix1 based on the events that are happening in matrix2.

[Krispy Scripts]

The time stamps in column 2 of matrix1 and event times in matrix2 are directly related

Answer 1

[Star Strider]

There are only three rows that exactly correspond:

D1 = load('Heath Robinson Matrix1.mat');
D2 = load('Heath Robinson Matrix2.mat');

M1 = D1.Matrix1;
M2 = D2.matrix2;

[CommonTimes, ia, ib] = intersect(M1(:,2),M2);

DesiredResult = M1(ia,:)

DesiredResult =

      0.0027084     0.045775
      -0.083389      0.23977
       0.051537      0.25477

[Krispy Scripts]

I am looking to take data points from matrix1 for every event happening in matrix2. So its a continuous data set and I need the corresponding data point in matrix1 based on matrix2 time events

[Star Strider]

Those in my Answer are the only ones that exactly correspond, since that is what you stated you wanted in your Question.

If you have different criteria, you need to state them specifically in terms that are possible to code. We can’t guess what you’re thinking.

[Krispy Scripts]

My apologies, I did not ask correctly. I accepted this as an answer because you did what I asked.

Would you mind taking a look at this question again that I posted here:

http://www.mathworks.com/matlabcentral/answers/277509-finding-corresponding-data-events-for-continuous-time

My apologies again and thank you for the help you already gave.

[Star Strider]

My pleasure.

I left a Comment requesting further clarification, since it’s still not clear to me.