MATLAB: Moving Mean Function – How to apply

Question

Hey guys,

I want to create a moving average with window size 4 as depicted below (take last 4 entries and in the beginning the highest number of entries available).

Unfortunately I do not get along with the "movmean" function. Can anyone help me?

Val MovAvg

1 1

2 1,5

3 2

4 2,5

5 3,5

6 4,5

7 5,5

8 6,5

Answer 1

movmean(yourvector, [3, 0], 'Endpoints', 'shrink');  %3 values backward (plus current value), 0 forward. Shrink at edges (beginning only since only looking backward)