memory error

[JohnGriffiths]

Having issue reading in the HCP groupPCA data; get a memory error

f = 'HCP_S900_820_rfMRI_MSMAll_groupPCA_d4500ROW_zcorr.dconn.nii'    
dcon = np.tanh(nib.load(f).get_data()[:])

Do you have any suggestions on this?

(Looks like maybe this is what the hcp_corr repo is for; but can't quite tell if that gives same output as the above line)

Thx.

[murphyyhuang]

Old post but ...
This .dconn.nii contains the voxel-wise functional connectivity matrix. The uncompressed raw data is around 60 GB.
You need a server with memory greater than 64GB.