Generate sample neo.Block



In [1]:

    
from neo import Block, Segment, AnalogSignal
from neo.test.generate_datasets import generate_one_simple_block

neo_block = generate_one_simple_block(supported_objects=[Block, Segment, AnalogSignal])
neo_block.name = 'sample dataset'

Save the whole Block to NIX



In [2]:

    
import nix
from neo2nix.block import Block as NixBlock

f = nix.File.open("/tmp/sample.h5", nix.FileMode.Overwrite)

NixBlock.write_block(f, neo_block)

f.close()

Read Block back from file



In [3]:

    
f = nix.File.open("/tmp/sample.h5", nix.FileMode.ReadWrite)

nix_block = NixBlock(f, f.blocks[0])

# Note: 
# - nix_block is attached to the file
# - all relations are lazy loaded

nix_block.name









    Out[3]:





'sample dataset'

Access data



In [5]:

    
signal = nix_block.segments[0].analogsignals[0]


from matplotlib.pyplot import figure

fig = figure(figsize=(8, 6))
ax = fig.add_subplot(111)

ax.plot(signal.times, [x for x in signal[:]])









    Out[5]:





[<matplotlib.lines.Line2D at 0x7fa459605710>]



In [6]:

    
f.close()



In [ ]: