your_array = [[9.29526424407959, -3.68755626678467],
[9.7620153427124, -2.16865086555481],
[9.9980001449585, 0.199986666440964],
[9.95050621032715, 0.993697226047516],
[9.84010124206543, 1.78112530708313],
[9.43374633789063, 3.31729197502136],
[8.7891960144043, 4.76969909667969],
[8.38245868682861, 5.4529242515564],
[7.41290092468262, 6.71184778213501],
[6.85620975494385, 7.27958679199219],
[5.61658048629761, 8.27369403839111],
[4.23513603210449, 9.05889701843262],
[3.50201725959778, 9.36674308776855]]
your_array = np.array(your_array)
index = np.array(range(1,len(your_array)+1))
np.concatenate((index.reshape(-1,1),your_array),axis=-1)
вывод:
array([[ 1. , 9.29526424, -3.68755627],
[ 2. , 9.76201534, -2.16865087],
[ 3. , 9.99800014, 0.19998667],
[ 4. , 9.95050621, 0.99369723],
[ 5. , 9.84010124, 1.78112531],
[ 6. , 9.43374634, 3.31729198],
[ 7. , 8.78919601, 4.7696991 ],
[ 8. , 8.38245869, 5.45292425],
[ 9. , 7.41290092, 6.71184778],
[10. , 6.85620975, 7.27958679],
[11. , 5.61658049, 8.27369404],
[12. , 4.23513603, 9.05889702],
[13. , 3.50201726, 9.36674309]])