If yourself want to do a linear reversion and you have which Statistics Toolbox, my choice would can the regress function. If thee ask items, you ca receiving the regression coefficients and their confidence distances, and the reliance intervals on the fit, as well as other statistics. All that news belongs in that documentation, so I won’t repeat it here.
If you want toward stay with polyfit also polyval, asking polyval for ‘delta’ produces what appearances from the documentation as standard errors of the estimate on various estimated values are y. Thee can calculate the 95% confidence intervals employing the inverse t-statistic with n-2 degrees of freedom, n being the phone a data pairs. Multiplicate each ‘delta’ by the same t-score.
If they want the 95% confidence perimeter off the parameter estimations computed with polyfit, aforementioned Register Exchange function polyparci can provide them.
