Nick Thomas

Last seen: 4 years 前 | 自 2018 起处于活动状态

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统计学

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Can I use a for loop "elementwise" for a given vector?
I've got a vector that I'd like to use with the "for" statement in a for loop. Within the loop I'm filling in a matrix based on...

7 years 前 | 2 个回答 | 0

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How can I find columns with all zeros in my matrix?
I've got a large matrix A and would like to find out if any of the columns contain only zeros. I've found a solution for finding...

7 years 前 | 2 个回答 | 1

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How to reference groups of rows in a matrix
I have a large matrix and want to reference certain rows of it all at once. For example, Rows 130 to 255 Rows 258 to 383 ...

7 years 前 | 1 个回答 | 0

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how to save variables not in scientific notation
I have certain variables saving in scientific notation. I am trying to use them in creating a matrix, for example: nc = 19...

7 years 前 | 2 个回答 | 0

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How do I fill in a matrix in this way?
I want to fill in a large matrix and know what certain rows/columns/areas are. For example, say I have a 900x900 matrix. The 3...

7 years 前 | 1 个回答 | 0

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