Fig. : From the plot courtesy RRUFF, at link, we can evidence two frequencies, here marked in a GNUPLOT rendering of the unpolarized processed data R060277. Without any constrain, the best fit given in the Fig. is providing the component (blue) with centre at lower Raman shift as being more relevant than the component (magenta) with centre at larger Raman shift. The opposite is obtained if we use a constrained approach to components' positions.