Data Formats

When loading data into Jdaviz, you specify a format that determines how the data will be parsed and which tools can visualize it:

• 1D Spectrum Format
• 2D Spectrum Format
• 3D Spectrum Format
• Image Format
• Catalog Format
• Ramp Format

Each format has specific requirements for the data structure. The format determines which viewers and analysis tools are available for that data.

See Data Sources for information on different ways to load data.

UI Access

v0.1

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Data Menu

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Control data and subset layer order and visibility for each viewer. Toggle layer visibility, reorder layers by dragging, and manage which data appears in the viewer.

dm = jd.viewers[viewer].data_menu

Learn about API access

Learn more about Data Menu →

API Access

You can specify the data format programmatically when loading data:

ldr = jdaviz.loaders['file']
ldr.filename = 'mydata.fits'
ldr.format = '1D Spectrum'  # Specify the desired format
ldr.load()

or by passing as a keyword argument to the load function:

jdaviz.load('mydata.fits', format='1D Spectrum')