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7 Cards in this Set
- Front
- Back
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How to start to write a scrit direct from R prompt ? |
fix(prog1) |
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What is the operator for inner product ? |
inner_product <- a %*% b |
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How to transfor a vector in matrix ? |
xxc <- matrix(xx, ncol = 1) # argument nrow for n rows. |
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How to transpose a matrix A ? |
t(A) |
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How to multiple two matrices A and B ? |
A %*% B # the matrice multiplication operator is '%*%' |
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Which function calculates the inverse of a matrix aa ? |
solve(aa) |
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How to solve a system of multiple equations with aa(coef. matrix) and ff (right side) |
solve(aa, ff) |
