Name
LINEST
Synopsis
Use
LINEST to use the least squares method to
find the best-fitting straight line
that meets the specified data values. This function returns an array
of values that describe the line and, therefore, it must be specified
as an array formula. The function uses the equation y=mx + b
for a line with one value specified for the
Known_X's
arguments, or the equation
y=m1x1 + m2x2 + ... + b
for multiple values.
To Calculate
=LINEST(Known_Y's
,Known_X's
,Const
,Stats
)
The Known_Y's
argument is required for
this function. All other arguments are optional.
-
Known_Y's
This array must contain a series of positive numbers. If the values in the array are in a single column, then the function interprets the values in each column of the
Known_X's
as a separate variable. If the values in the array are in a single row, then the function interprets the values in each row of theKnown_X's
array as a separate variable.-
Known_X's
If this argument is omitted, it is assumed to be an array of values in the range of {1,2,3,...} that is the same size as the array specified by the
Known_Y's
argument.-
Stats
Indicates a logical value of
TRUE
orFALSE
that specifies whether additional regression statistics should be returned with the array. If the value isTRUE
, the function returns additional regression statistics.
Example
Figure 15-26 compares the use of the LINEST and LOGEST functions. The LINEST function returns statistics for the specified line whereas, LOGEST returns values for an exponential ...
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