MATLAB Answers

Help with storing values for the loop I created want to store them with where they are located on the vector

1 view (last 30 days)
Yogesh Bhambhwani
Yogesh Bhambhwani on 24 Sep 2020
Commented: madhan ravi on 28 Sep 2020
Help with storing values for the loop I created want to store them with where they are located on the vector
the vector is [4 1 6 9 2 1 8 3]
want to sort from smallest to biggest which I did, but I can not seem to figure out how to store them from where they were found on the vector.

  0 Comments

Sign in to comment.

Answers (2)

Dana
Dana on 24 Sep 2020
Edited: Dana on 24 Sep 2020
Is this what you're after?
vector = [4 1 6 9 2 1 8 3];
[sorted,sortinds] = sort(vector)
sorted =
1 1 2 3 4 6 8 9
sortinds =
2 6 5 8 1 3 7 4
Here, sortinds gives the locations of the sorted values in the original vector vector, e.g., the first element in the sorted vector is 1=vector(2), the second is 1=vector(6), the third is 2=vector(5), etc.

  5 Comments

Show 2 older comments
Yogesh Bhambhwani
Yogesh Bhambhwani on 27 Sep 2020
The loop goes over for if statements to find the smallest value in the vector then I have to create another for if statement that stores the value from the for if statement from before and repeats that.
Dana
Dana on 28 Sep 2020
Your function takes an input vector, and returns two outputs, (i) sorted and (ii) indices. As I understand it, those two outputs should be (i) sorted = the elements of vector sorted into ascending order, and (ii) indices = the locations in vector of each element in sorted.
Is that understanding correct? If so, then
[sorted,indices] = sort(vector)
does exactly what you need. There would be no need to loop on anything.
On the other hand, if I'm misunderstanding things, please try to clearly explain what the function arguments are supposed to equal. In doing so, forget for a minute about how to get those outputs (e.g., don't tell me about the algorithm you think should be used), just explain what those output should be in the end.

Sign in to comment.


madhan ravi
madhan ravi on 26 Sep 2020
Google bubblesort.

  2 Comments

Yogesh Bhambhwani
Yogesh Bhambhwani on 27 Sep 2020
I don’t need to sort them I already did that I just to store the where they found the value in the array repeatedly.
madhan ravi
madhan ravi on 28 Sep 2020
Loop iterator tells you exactly where it was found. It was your homework to use loops, so read about the algorithm.

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!