to compute to Hilbert Transform for a discrete time signal. for ex:[1 3 4 7]

[manjukamasani]

For a signal x=[1 3 4 7]

Hilbert Transform output in Matlab is 1+2i 3-1.5i 4-2i 7+1.5i

For the same signal, if i compute manually i.e by using ifft and fft. I am able to compute Hilbert transform for only odd values i.e for only 3 & 7 i.e 3-1.5i & 7+1.5i.

for even values i am getting the complex part as zero.i.e for 1 & 4.

Please help me out in finding out Hilbert Transform (complex part) for even values.