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Fix regression in least_squares_fit.cpp

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Scott Lahteine 2017-05-03 19:21:44 -05:00 committed by GitHub
parent e1b85ff67b
commit 11b6a3cbb6
1 changed files with 3 additions and 4 deletions
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Marlin/least_squares_fit.cpp
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@ -69,10 +69,9 @@ int finish_incremental_LSF(struct linear_fit_data *lsf) {
lsf->x2bar = lsf->x2bar / N - sq(lsf->xbar); lsf->x2bar = lsf->x2bar / N - sq(lsf->xbar);
lsf->y2bar = lsf->y2bar / N - sq(lsf->ybar); lsf->y2bar = lsf->y2bar / N - sq(lsf->ybar);
lsf->z2bar = lsf->z2bar / N - sq(lsf->zbar); lsf->z2bar = lsf->z2bar / N - sq(lsf->zbar);
lsf->xybar = lsf->xybar / N - sq(lsf->xbar); lsf->xybar = lsf->xybar / N - lsf->xbar * lsf->ybar;
lsf->yzbar = lsf->yzbar / N - sq(lsf->ybar); lsf->yzbar = lsf->yzbar / N - lsf->ybar * lsf->zbar;
lsf->xzbar = lsf->xzbar / N - sq(lsf->xbar); lsf->xzbar = lsf->xzbar / N - lsf->xbar * lsf->zbar;
const float DD = lsf->x2bar * lsf->y2bar - sq(lsf->xybar); const float DD = lsf->x2bar * lsf->y2bar - sq(lsf->xybar);
if (fabs(DD) <= 1e-10 * (lsf->max_absx + lsf->max_absy)) if (fabs(DD) <= 1e-10 * (lsf->max_absx + lsf->max_absy))
return -1; return -1;