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Diffstat (limited to 'doc/modeling-method.md')
| -rw-r--r-- | doc/modeling-method.md | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/modeling-method.md b/doc/modeling-method.md index dab120e..6357cd8 100644 --- a/doc/modeling-method.md +++ b/doc/modeling-method.md @@ -44,8 +44,12 @@ All of these are valid regression model trees. * `DFATOOL_ULS_SKIP_CODEPENDENT_CHECK=1` * `DFATOOL_REGRESSION_SAFE_FUNCTIONS=1` -## +## Least-Squares Regression +If dfatool determines that there is no need for a tree structure, or if `DFATOOL_DTREE_ENABLED=0` has beenset, it will go straight to least-squares regression. +By default, it still utilizes the RMT/ULS algorithms to find and fit a suitable function template. +If needed, `--function-override` can be used to set a function template manually. +For instance, in order to specify that NMC DPU allocation latency is a function of the number of DPUs (and nothing else), ue `--function-override 'NMC reconfiguration:latency_dpu_alloc_us:regression_arg(0) + regression_arg(1) * parameter(n_dpus)'` * CART: Regression Trees * DECART: Regression Trees with exclusively binary features/parameters |