couple a value in a column of a cell array to a value in another column of the cell array

I have a variable, which is response_time_rh, which is a 24x1 cell variable, containing the response times.

What I want to do is, that I want to know which of these response times are <100.

Therefore I did the following:

thresshold = 100;
r_t_rh_k100 = cellfun(@(x) x,100, response_time_rh); 

This creates a logicical with ones and zeros, indicating which one is smaller than 100

Then I want to know the response time which was smaller than 100, therefore I did the following:

response_time_rh_k100 = response_time_rh(r_t_rh_k100);

This gave me the value of the cell with a reaction time <100

In addition, I have a variable called t and this t variable is a 72x40 cell. In column 24 there are other values and I need the value in column 24 that corresponds with the value of the cell with a reaction time <100 (are on the same row), so with the response_time_rh_k100. I don''t know how to do this.

I did this:

time_outc_reward_hit_k100 =  t(r_t_rh_k100, 24)

However, this did not what I want, for example if the logical was

1

0

0

0

It always selects the value in colum 24 for the first one, while I have different conditions: reward_hit and reward_toolate, which are mixed, so therefore it does not select the correct value... does this make any sense? I do not know how to select the correct one.

Can anyone help me?

Answer 1

[BhaTTa]

Hey @Joyce Dieleman, I assume that the issue you're facing is due to an alignment problem between your response_time_rh data (24x1) and your full t array (72x40). Your logical index r_t_rh_k100 is based on the 24 rows, but you're trying to apply it directly to the 72 rows, causing a mismatch.

To correctly select the corresponding t values, you need to know which rows in the original t array your response_time_rh values came from. Let's assume you have a logical array, say is_reward_hit_trial (72x1), that indicates which rows in t correspond to your response_time_rh data.