Hi Snehal,
when you want to interpolate in a 2D array you should also provide a 2D array!
- Your Z data consist of just one column! That should be a "rectangular" array instead.
- Your X/Y data are just mixed up in two columns with some text garbage in between. There should be just a vector of X and Y data each! X vector can be pressure (from 1 to 60), Y data is temperature (-20 to 300)...
Please format your data in a more regular format and create a 2D array of Z data...