Manuals/calci/TREND

TREND(KnownYs,KnownXs,NewXs,ForceConst)


  • is the set of y values.
  • is the set of x values.
  • is the new x value.
  • is the constant value.
    • TREND() returns values along a linear trend.

Description

  • This function calculating the trend line using the given set of   and   values.
  • Trend line is the straight line which joins two or more points in the upward direction.
  • It is calculating using the equation  ,which is the simple equation for the straight line.
  • In this equation   is the independent variable,   is the dependent variable,   is the slope of the line and   is the constant which is equal to   when  .
  • In  ,   is the set of y-values to find the linear trend,   is the set of x- values to find the linear trend,   is the set of new x-values for which the function calculates corresponding new y-values and   is the constant.
  • It is either TRUE or FALSE. If ForceConst value is TRUE or omitted, then it is calculated normally.
  • If   value is FALSE, then in the equation  , and  .
  • Here   is required.  ,  and   are optional.
  • If   value is omitted, then it is assumed to be the array{1,2,3..} which is the same size of  . If   value is omitted, then it is assumed to be the same size of  .
  • If both   and   are omitted, then they are assumed to be the array {1,2,3..} which is the same size of KnownYs.
  •   function is used for polynomial curve fitting by regressing against the same variable raised to different powers.
  • When entering an array constant for an argument such as  , use commas to separate values in the same row and semicolons to separate rows.

Examples

Spreadsheet
DAYS(x) SALES(y) x1
1 1 40 10
2 2 35 11
3 3 42 12
4 4 50 13
5 5 54 14
6 6 49
7 7 51
8 8 58
9 9 60
  1. =TREND(B1:B9,A1:A9,C1:C5)
62.611111111111114,etc
  1. =TREND(B1:B9,A1:A9,C1:C5,FALSE)
82.84210546,etc

Related Videos

TREND

See Also

References