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rui gao


Last seen: 2 years 前 |  自 2018 起处于活动状态

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统计学

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Parallelogram rule for vectors
Is there some methods to calculate the summation of these four red vectors showed below? For example, V1 = [4,3]; V2 = [-3,4]...

5 years 前 | 1 个回答 | 0

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How to delete the branches?
Maybe I can delete these segment lines in ArcGIS as the small segment lines can be identified as short length.

5 years 前 | 0

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How to delete the branches?
I have a matrix which just consist by 0 and 1, like the figure above (1 is black and 0 is white). It's kind of river, but ther...

5 years 前 | 2 个回答 | 0

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Questions about 'geotiffwrite'
Hello, any suggestions would be appreciated. I use matlab to read '*.tif' (DEM), and do some data processing. After the process...

5 years 前 | 0 个回答 | 1

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How to combine cells with a matrix?
I want to extract 6 lines from a ascii file, and add these lines into another text file which just contains a matrix, like 500*5...

6 years 前 | 1 个回答 | 0

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How to find column and row indexes of items that are +-inf or Nan ?
Hi. If I need omit these elements (inf) to calculate the variance, how to achieve it?

6 years 前 | 0