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Add coordinate points to a grid
Hi, I need help. Im trying to create a grid (map of a ground) 200m x 300m and then I need to add some points in the grid. I have...
10 years 前 | 1 个回答 | 0
1
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Choose randomly rows in a matrix
Hi I have a matrix with 2 columns, the first is for 'ID', the second is for 'age'. I want to randomly pick 'n'(e.g. 2) IDs of t...
12 years 前 | 1 个回答 | 0
1
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change a vector of a matrix
Hi, I have a function function survival(Si) where Si is a matrix (mx8) Inside the function I create a vector 'status (...
12 years 前 | 2 个回答 | 0
2
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compare 2 matrix with different dimensions
Hi, assume that I have a matrix 'info' (800,3), the first column is for ID, the second column is for coordinate x and the last c...
12 years 前 | 2 个回答 | 0
