| 77 | // ------------------------------------------------------------------------ |
| 78 | |
| 79 | AnyType utils_var_scales_transition::run (AnyType& args) |
| 80 | { |
| 81 | ScalesState<MutableArrayHandle<double> > state = args[0]; |
| 82 | MappedColumnVector x = args[1].getAs<MappedColumnVector>(); |
| 83 | |
| 84 | if (state.numRows == 0) |
| 85 | { |
| 86 | int dimension = args[2].getAs<int>(); |
| 87 | |
| 88 | state.allocate(*this, dimension); |
| 89 | state.dimension = dimension; |
| 90 | state.numRows = 0; |
| 91 | state.mean.setZero(); |
| 92 | state.std.setZero(); |
| 93 | } |
| 94 | |
| 95 | for (uint32_t i = 0; i < state.dimension; i++) |
| 96 | { |
| 97 | state.mean(i) += x(i); |
| 98 | state.std(i) += x(i) * x(i); |
| 99 | } |
| 100 | |
| 101 | state.numRows++; |
| 102 | |
| 103 | return state; |
| 104 | } |
| 105 | |
| 106 | // ------------------------------------------------------------------------ |
| 107 | |