Delete all data points from the structure

i would like to delete all data points from the time series for which the following condition is true :

(temp < 2) & (speed < 1)

my_structure = 1 * 3 struct

the structure contains 4 fields : date, temp, speed and power

i used the following code but it didn't work:

temp_data = [my_structure.temp]
speed_data = [my_structure.speed]
for i = 1:size(my_structure, 2)
    j = 1:length(temp_data)
    to_remove = or((temp_data(j,i) < 2 ) , (speed_data(j,i) < 1))
    if to_remove(j) == 1
        to_remove(j) = []
    end
end
display(my_structure)

Answer 1

[Reshma Nerella]

Hi,

From my understanding, you want to certain datapoints in the structure satisfying either of the two conditions i.e (temp < 2) & (speed < 1).

To acheive this, you can modify your code as follows:

for i = 1:size(my_structure,2) 
    if(my_structure(i).temp < 2) % check if the temp value is 2 is that particular row of struct
        my_structure(i).temp = []; % if yes, set it to [].
    end
    if(my_structure(i).speed < 1)
        my_structure(i).speed = [];
    end
end

Hope this helps!