single precision data for griddata()

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roudan
roudan 2018 年 4 月 16 日
コメント済み: Guillaume 2019 年 9 月 20 日
Hi
when I use griddata(x,y,v, xq,yq), x,y,v,xq,yq are all single-precision data to save the memory. but there is an error saying " the input points must be a double array.
However when I checked the online manual for griddata(). it says x,y,z, can be single or double https://www.mathworks.com/help/matlab/ref/griddata.html
So I am wondering how I can use single-precision data in griddata()?
Thanks
  1 件のコメント
roudan
roudan 2018 年 4 月 16 日
Thanks Guilaumn.

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採用された回答

Guillaume
Guillaume 2018 年 4 月 16 日

Yes, it looks like an implementation bug or a documentation bug. The fault lies with scatteredInterpolant which is called by griddata. The doc says that scatteredInterpolant accepts single arrays when it clearly doesn't.

This is worthy a bug report to Mathworks.

It looks like you're out of luck, you can't use singles with griddata.

その他の回答 (2 件)

Jyotish Robin
Jyotish Robin 2018 年 4 月 18 日

scatteredInterpolant does not support single inputs. This is a documentation bug and will be corrected.


BISHNUPRIYA SAHOO
BISHNUPRIYA SAHOO 2019 年 9 月 20 日
I am also facing similar problem. Please help me to solve.
  1 件のコメント
Guillaume
Guillaume 2019 年 9 月 20 日
similar problem to what?
As explained, single data is not supported with griddata. The simple fix is to convert your data to double.

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