Extracting specific portions of acceleromeetr signal

Dear collouges

I have an acceleration signal with period of wiggling (resulted from motion) and periods of silent. I would like to extrcat the data points that show the motion and save them in a matrix or vector. Attached is a .mat file with data of the x-axis from my accelerometer.

I appreciate if you help me with this

Thank you

Answer 1

[KSSV]

load('accx.mat') ;
tol = 0.1 ;   % can be varied 
idx = abs(accx)>tol ;

plot(accx(idx))

[MA-Winlab]

Thank you, I also used this approach to identify the portions.Now I want to extrcat the data points of each portion and put it in a colomn of a matrix. i.e., I would lieke to create a matrix that has the data points of each identified portion as colomn. For example if I have 10 splikes (portions), then I want to store them (as data points) in 10 colomns in a matrix.

Your help is appreciated

[KSSV]

iwant = accx(idx)