## Hollerith machine computation of least squares trend lines |

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82 steps Add the column Add the logs algebraic signs already printed arithmetic blank boxes on line code numbers coefficients collection factors cologarithms Columbia University Statistical complement of 82 COMPUTATION OF LEAST corrections correlation Counter 2 Counter describe factorial powers Fisher's description graduation process hand computation inclusive Interpolation last digit LEAST SQUARES TREND least-squares polynomial line 12 line 16 lines 21 log factorial table look lower bound mathematics neighbors of n numbers in counters order on line original string orthogonal functions orthogonal polynomials Plug-board Potato Price preceding neighbors problem progressive totals reader result RICHARD WARREN say mentally series of orthogonal set of cards seven place table shown space SQUARES TREND LINES Stieltjes Integrals Sub-Total subtract succeeding neighbors sum of squares Summary Card Punch summary punch table of log table of multiples tabulating instructions tabulating machine three six eight twenty three wiring write the preceding write the sums written