Lnreg - Texas Instruments TI-NSPIRE Reference Manual

ln()
⇒
Value1 value
ln( )
⇒
List1 list
ln( )
Returns the natural logarithm of the argument.
For a list, returns the natural logarithms of the elements.
⇒
squareMatrix1 squareMatrix
ln( )
Returns the matrix natural logarithm of squareMatrix1. This is not
the same as calculating the natural logarithm of each element. For
information about the calculation method, refer to
squareMatrix1 must be diagonalizable. The result always contains
floating-point numbers.

LnReg

X Y Freq Category
LnReg , [, [ ] [,
Calculates the logarithmic regression. A summary of results is stored
in the stat.results variable. (See page 76.)
All the arguments must have equal dimensions except for Include.
X represents xlist.
Y represents ylist.
Freq represents frequency.
Category represents category codes.
Include represents category include list.
Output variable
stat.RegEqn
stat.a, stat.b
2
stat.r
stat.r
stat.Resid
stat.ResidTrans
stat.XReg
stat.YReg
TI-Nspire™ Reference Guide
on.
cos()
Include
, ]]
Description
·
Regression equation: a+b ln(x).
Regression coefficients: y = a+b
Coefficient of determination.
Correlation coefficient for linear model.
Residuals of the curves fit = yN(a+b
Residuals associated with linear fit of transformed data.
List of data points in the modified X List actually used in the regression based on restrictions of Freq,
Category List, and Include Categories.
List of data points in the modified Y List actually used in the regression based on restrictions of Freq,
Category List, and Include Categories.
If complex format mode is Real:
If complex format mode is Rectangular:
In Radian angle mode and Rectangular complex format:
To see the entire result, press
move the cursor.
·
ln(x).
·
ln(x)).
/u
keys
£ ¡ ¢
and then use and to
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