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What causes the Surfer gridding error:"Insufficient data (collinear)"? Is it because all my Y values are 0?

One of the new features of Surfer 15 is the ability to grid collinear data!  If you are receiving this message using Surfer 15, try using one of the following gridding methods:
 
  • Inverse Distance
  • Nearest Neighbor
  • Moving Average
  • Data Metrics
 
Surfer 14 and below can not grid data if all of the points are collinear (all in a straight line). 

 

Either add more data points not in the line, or change one of the values by a small amount (e.g. 0.001), save the changes, and grid the data.

 

Updated December 29, 2017

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