How to find the settling time
7 ビュー (過去 30 日間)
古いコメントを表示
Hi,
Below is my time series data, and I want to find the settling time of each variable, column1 is time, column2~4 are my variables.
Criterion is: if standard deviation >=0.05 then it is called a change, want to catch where the data change is >=0.05(Stdev) and keep stable, then it is called settling time.
For example: v2 change twice and settled at two time (5sec & 15sec), where as v1 only settled at 7sec.
My definition of change: change from 0 to a constant value. v1 changed from 0 to 1 at 7sec, and keep very stable near 1.
Time v1 v2 v3
1 0 0 0
2 0 0 0
3 0 0 0
4 0 0 0
5 0 1 1
6 0 1 1
7 1 1 1
8 0.989 1 1
9 0.979 1 1
10 0.988 1 1
11 0.999 0 0
12 1 0 0
13 1 0 0
14 1 0 0
15 1 1 0
16 1 1 0
17 1 1 0
18 1 1 0
19 1 1 1
20 1 1 1
21 1 1 1
22 1 1 1
23 1 1 1
24 1 1 1
25 1 1 1
26 1 1 1
27 1 1 1
28 1 1 1
29 1 1 1
I open to welcome if any other method to catch the settling time(s). Some variables change twice or thrice.
My desired output:
v1 7
v2 5 15
v3 5 19
0 件のコメント
回答 (1 件)
Birdman
2017 年 12 月 6 日
SetTimeV1=find(diff(v1)>0.05)+1
SetTimeV2=find(diff(v2)>0.05)+1
SetTimeV3=find(diff(v3)>0.05)+1
4 件のコメント
参考
カテゴリ
Help Center および File Exchange で Startup and Shutdown についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!