Fit of the HARPS RV of GJ674 with one Keplerian and three sinusoids fixed to the rotational period (top right P_rot = 34.85d) and the two first harmonics (bottom left P_rot/2 = 17.425d and bottom right P_rot/3 = 11.6167d). The Keplerian fit (top left) gives the planetary parameters. Each plot is given as a function of orbital phase after removing the other three signals. Individual error bars are also plotted.