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Σ
DAT: places contents of current
Σ
DATA matrix in level 1 of the stack.
„
Σ
DAT: stores matrix in level 1 of stack into
Σ
DATA matrix.
The
Σ
PAR sub-menu
The
Σ
PAR sub-menu contains functions used to modify statistical parameters.
The parameters shown correspond to the last example of data fitting.
The parameters shown in the display are:
Xcol: indicates column of
Σ
DATA representing x (Default: 1)
Ycol: indicates column of
Σ
DATA representing y (Default: 2)
Intercept: shows intercept of most recent data fitting ((Default: 0)
Slope: shows slope of most recent data fitting (Default: 0)
Model: shows current data fit model (Default: LINFIT)
The functions listed in the soft menu keys operate as follows:
XCOL: entered as n
@XCOL
, changes Xcol to n.
YCOL: entered as n
@YCOL
, changes Ycol to n.
Σ
PAR: shows statistical parameters.
RESET: reset parameters to default values
INFO: shows statistical parameters
The MODL sub-menu within
Σ
PAR
This sub-menu contains functions that let you change the data-fitting model to
LINFIT, LOGFIT, EXPFIT, PWRFIT or BESTFIT by pressing the appropriate button.
The 1VAR sub menu
The 1VAR sub menu contains functions that are used to calculate statistics of
columns in the
Σ
DATA matrix.