Model 4200A-SCS Parameter Analyzer Reference Manual Section 6: Clarius4200A-901-01 Rev. C / February 2017 6-253LINFITYINT Formulator functionFinds a linear equation and returns the Y intercept.UsageLINFITYINT(VX, VY, STARTPOS, ENDPOS)VX The name of any column (vector) listed under ColumnsVY The name of any column (vector) listed under ColumnsSTARTPOS The row number (index) of the first set of X and Y valuesENDPOS The row number (index) of the second set of X and Y valuesDetailsFinds a linear equation and returns the Y intercept as follows:• Finds a linear equation of the form Y = a + bX from two sets of X and Y values selected fromtwo columns (vectors), VX and VY. This equation corresponds to a line drawn through two pointson a curve that is created by plotting the values in VY against the values in VX. The two points arespecified by the arguments STARTPOS and ENDPOS.• Returns the Y intercept of the linear equation (value of a in Y = a + bX).If a VX or VY value at either STARTPOS or ENDPOS is an invalid number (that is, the value is #REF),the function will not return a valid result.To return the Y intercept of a linear regression fit for two columns (vectors), use the REGFITYINTfunction.ExampleOFFSET = LINFITYINT(GATEV, GATEI, FIRSTPOS(GATEV), LASTPOS(GATEV))Also seeREGFITYINT (on page 6-263)
