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Sign in to comment. Sign in to answer this question. Unable to complete the action because of changes made to the page. Reload the page to see its updated state. Based on your location, we recommend that you select:. Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location. Toggle Main Navigation. Suchen Answers Clear Filters. Answers Support MathWorks. Search Support Clear Filters. Support Answers MathWorks. Search MathWorks. MathWorks Answers Support. Open Mobile Search. You are now following this question You will see updates in your activity feed. You may receive emails, depending on your notification preferences. Interpolate set of values. Adrin Johnson on 6 Dec Vote 0. Edited: Adrin Johnson on 6 Dec Hi, I am quite new to MatLab. I need your help with one of my problems. I have to interpolate the data in it. So I tried the scatteredInterpolant for it. Unfortunately I am getting errors such as Error using scatteredInterpolant Input data point values must be specified in column-vector format as I couldn't understand how it is working. Please help me with the same. I need the z intensity values in the later script. Answers 1. KSSV on 6 Dec Cancel Copy to Clipboard. Thank you. I tried it. But I get the error the grid vectors must contain unique points matlab. Can you attach image of surf M,N? In reality its much bigger :. See Also.NAN from griddata for scatteredInterpolant
Sign in to comment. Sign in to answer this question. Unable to complete the action because of changes made to the page. Reload the page to see its updated state. Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select:. Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location. Toggle Main Navigation. Search Answers Clear Filters. Answers Support MathWorks. Search Support Clear Filters. Support Answers MathWorks. Search MathWorks. MathWorks Answers Support. Open Mobile Search. Trial software. You are now following this question You will see updates in your activity feed. You may receive emails, depending on your notification preferences. NAN from griddata for scatteredInterpolant. Matan Zakay on 17 Jun Vote 1.
Interpolation
Documentation Help Center. Use scatteredInterpolant to perform interpolation on a 2-D or 3-D data set of scattered data. Use griddedInterpolant to perform interpolation with gridded data. Vectors x and y specify the x,y coordinates of the sample points. The rows of P contain the xy or xyz coordinates for the values in v. Specify Method as the last input argument in any of the first three syntaxes. Pass Method and ExtrapolationMethod together as the last two input arguments in any of the first three syntaxes. Method can be: 'nearest''linear'or 'natural'. ExtrapolationMethod can be: 'nearest''linear'or 'none'. Sample points, specified as vectors of the same size as v. The sample points should be unique. However, if the sample points contain duplicates, scatteredInterpolant displays a warning and merges the duplicates into a single point. Sample points array, specified as an m -by- n matrix, where m is the number of points and n is the dimension of the space where the points reside. Each row of P contains the xy or xyz coordinates of a sample point. Linear extrapolation based on boundary gradients. Default when Method is 'linear' or 'natural'. Nearest neighbor extrapolation. This method evaluates to the value of the nearest neighbor on the boundary. Default when Method is 'nearest'. No extrapolation. Any queries outside the convex hull of Points return NaN. Sample points, specified as a matrix. The size of the matrix is m -by- 2 or m -by- 3 to represent m points in 2-D or 3-D space. Each row of Points contains the xy or xyz coordinates of a unique sample point. The rows in Points correspond to the function values in Values. Function values at sample points, specified as a vector of values associated with each point in Points. Interpolation method, specified as 'linear''nearest'or 'natural'. See Method for descriptions of these methods. Extrapolation method, specified as 'nearest''linear'or 'none'. See ExtrapolationMethod for descriptions of these methods. Use scatteredInterpolant to create the interpolantF. Then you can evaluate F at specific points using any of the following syntaxes:. Each row in Pq contains the coordinates of a query point.
TriScatteredInterp
Sign in to comment. Sign in to answer this question. Unable to complete the action because of changes made to the page. Reload the page to see its updated state. Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select:. Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location. Toggle Main Navigation. Search Answers Clear Filters. Answers Support MathWorks. Search Support Clear Filters. Support Answers MathWorks. Search MathWorks. MathWorks Answers Support. Open Mobile Search. Trial software. You are now following this question You will see updates in your activity feed. You may receive emails, depending on your notification preferences. How to use scatteredInterpolant on given data? Ibro Tutic on 8 Dec Vote 0. Commented: Walter Roberson on 10 Dec Accepted Answer: Walter Roberson. Hi all. I am not quite sure on how to use scatteredInterpolant. I tried reading up on it, but it doesn't make sense to me since I don't have a function v. I attached a csv document with some sample data not actual values, just place holders.
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