Interpolation::indatg ListInterpolation::indatg

Details

This message is generated when the data is given as an array and the grid coordinates are not all real numbers.
Off[message] switches off the message; On[message] switches it on. For example: Off[Interpolation::indatg].

An error occurs because the grid coordinates are symbols rather than real numbers:

Wolfram Language code: ListInterpolation[{3, 1, 7, 9, 9, 5}, {{x1, x2, x3, x4, x5, x6}}]

This shows a valid specification of grid coordinates in ListInterpolation:

Wolfram Language code: ListInterpolation[{3, 1, 7, 9, 9, 5}, {{1, 2, 3, 7, 8, 9}}]

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