Data interpolation from array

2020 1 17
1 个回答
更新时间：2020 1 18
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Hello,
I have 5 columns of normalised snow fall data (between 0 and 1). All 5 column are 9000 rows long.
I want to interpolate this data onto an array of 2984 rows and 6033 columns in size.
Should I use the scatteredInterpolant function to do this?
If so, please help.
Kind regards,

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回答（1 个）

Image Analyst
Image Analyst 2020-1-17
编辑：Image Analyst 2020-1-17

0 个投票

Depends. What to the columns and rows represent?
I'd probably say just use interp1() for each column one at a time.
Attach your table if you need more help.

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Sarah Yun
Sarah Yun 2020-1-17
编辑：Image Analyst 2020-1-17
The columns and rows are a DTM array.
I want to interpolate snow fall data onto the DTM array.
To show snow fall extent as a gradient across DTM extent.
Image Analyst
Image Analyst 2020-1-17
What does DTM mean? Do you want to consider the table/matrix as an image and look at the gradient within each row (going across columns)?
Sarah Yun
Sarah Yun 2020-1-17
编辑：Sarah Yun 2020-1-17
DTM means digital terrain model.
I want to interpolate the 5x9000 snowfall array onto the 2984x6033 DTM array.
What is easiest way to do it?
Thank you.
Image Analyst
Image Analyst 2020-1-18
Maybe I don't understand. If you have the snowfall in an array, why not simply use imresize()???
snowfall2 = imresize(snowfall1, [2984, 6033]);

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