</span><span class = "S5"><span class="S10">polyfit</span></span><span class = "S5"><span class="S0">. Keep in mind that the values for small</span></span><span class = "S5"><span class="S0"> </span></span><span style="font-family:STIXGeneral, STIXGeneral-webfont, serif; font-style: italic; font-weight: normal">k</span><span class = "S5"><span class="S0"> should be left out of the computation, as they don't represent the linear trend. </span></span></div><div class = 'CodeBlock contiguous'><div class = 'inl