how to create a training data set for for scikit learn

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how to create a training data set for for scikit learn
I have 5 separate datasets with each look likes the following
[[ 0 -3 -3 ... -2 3 -1]
[ -3 0 -1 ... 0 -1 -3]
[ -2 -3 -14 ... 2 1 -3]
...
[ 4 0 -1 ... -1 -1 -1]
[ -5 0 -2 ... -1 -1 0]
[ -1 -2 -1 ... -2 -1 -1]]
Each data set represents EMG signals from myo armband when I do the single pose and all 5 datasets are represents the same pose. How to combine the 5 datasets into 1 to use it as a training data set for using it in scikit learn.
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Possible duplicate of Combining NumPy arrays
– mostlyoxygen
Aug 10 at 18:54