read_arrays

sherpa.io.read_arrays(*args)[source] [edit on github]

Create a data object from arrays.

Parameters:

  • col1 (array_like) – The data columns.

  • coln (...) – The data columns.

  • dstype (optional) – The data type to create. It must be a subclass of sherpa.data.BaseData and defaults to sherpa.data.Data1D

Returns:

The data object (created by calling the dstype constructor with the filename and then the data columns from the file).

Return type:

data

Raises:

sherpa.utils.err.IOErr – Raised if no arrays are sent in.

See also

get_ascii_data, write_arrays

Examples

Create a 1D data object from the x and y arrays:

>>> dat = read_arrays(x, y)

Include a statistical error column:

>>> dat = read_arrays(x, y, dy)

Create an integrated (i.e. histogram) data set:

>>> dat = read_arrays(xlo, xhi, y, dstype=sherpa.data.Data1DInt)