How to add interpolated item to array?-CodePudding

If I have a one dimensional (column) that has 999 item (numbers only), how can I put an interpolated number between the item 500 and 501?

a=np.array(h5py.File('/Users/Ad/Desktop//H5 Files/3D.h5', 'r')['Zone']['TOp']['data'])
output = np.column_stack((a.flatten(order="C"))
np.savetxt('merged.csv',output,delimiter=',')

CodePudding user response：

What you want to achieve is not clear, but try

numpy.insert(array, 501, value)

Note that the second argument is the index before which the new element will be inserted.

More: https://numpy.org/doc/stable/reference/generated/numpy.insert.html

CodePudding user response：

With such a short array, you could just add the value to the end and sort!
Still, you can find the index and insert it!

https://numpy.org/doc/stable/reference/generated/numpy.insert.html

Beware, you may need to change the type of your array to insert a non-integer value

>>> arr = np.arange(10)
>>> np.insert(arr, 5, 4.4) 
array([0, 1, 2, 3, 4, 4, 5, 6, 7, 8, 9])
>>> np.insert(arr.astype("float64"), 5, 4.4) 
array([0. , 1. , 2. , 3. , 4. , 4.4, 5. , 6. , 7. , 8. , 9. ])