| Description | Uses | Classes, Interfaces, Objects and Records | Functions and Procedures | Types | Constants | Variables |
LinRegression is used to perform linear regression.
| Name | Description |
|---|---|
Class EStException |
ancestor to all SysTools exceptions |
Class EStStatError |
statistics exceptions |
record TStLinEst |
full statistics for a linear regression |
procedure LinEst(const KnownY : array of Double; const KnownX : array of Double; var LF : TStLinEst; ErrorStats : Boolean); |
procedure LinEst16(const KnownY; const KnownX; NData : Integer; var LF : TStLinEst; ErrorStats : Boolean); |
PDouble = ˆDouble; |
TDoubleArray = array[0..(stMaxBlockSize div SizeOf(Double))-1] of Double; |
PDoubleArray = ˆTDoubleArray; |
TIntArray = array[0..(StMaxBlockSize div SizeOf(Integer))-1] of Integer; |
PIntArray = ˆTIntArray; |
EStExceptionClass = class of EStException; |
stscStatBadCount = 170; |
stscStatBadParam = 171; |
stscStatBadData = 172; |
stscStatNoConverge = 173; |
StMaxBlockSize = MaxLongInt; |
procedure LinEst(const KnownY : array of Double; const KnownX : array of Double; var LF : TStLinEst; ErrorStats : Boolean); |
|
-Performs linear fit to data and returns coefficients and error statistics. KnownY is the dependent array of known data points. KnownX is the independent array of known data points. NData must be greater than 2. If ErrorStats is FALSE, only B0 and B1 are computed; the other fields of TStLinEst are set to 0.0. See declaration of TStLinEst for returned data. |
procedure LinEst16(const KnownY; const KnownX; NData : Integer; var LF : TStLinEst; ErrorStats : Boolean); |
|
-Performs linear fit to data and returns coefficients and error statistics. KnownY is the dependent array of known data points. KnownX is the independent array of known data points. NData must be greater than 2. If ErrorStats is FALSE, only B0 and B1 are computed; the other fields of TStLinEst are set to 0.0. See declaration of TStLinEst for returned data. |
PDouble = ˆDouble; |
|
.Z+ |
TDoubleArray = array[0..(stMaxBlockSize div SizeOf(Double))-1] of Double; |
PDoubleArray = ˆTDoubleArray; |
TIntArray = array[0..(StMaxBlockSize div SizeOf(Integer))-1] of Integer; |
PIntArray = ˆTIntArray; |
EStExceptionClass = class of EStException; |
stscStatBadCount = 170; |
|
unequal or bad counts of array elements |
stscStatBadParam = 171; |
|
invalid parameter |
stscStatBadData = 172; |
|
invalid data point in array |
stscStatNoConverge = 173; |
|
no convergence in numerical routine |
StMaxBlockSize = MaxLongInt; |
|
.Z+ |