Description Usage Arguments Value See Also Examples
This selfStart
model evaluates the Chwirut model,
for an ultrasonic response.
It has an initial
attribute that creates initial estimates of
the parameters lrc
, b0
and b1
. The model
function also returns a "gradient"
attribute.
1 | SSChwirut(input, lrc, b0, b1)
|
input |
a numeric vector of values at which to evaluate the model. |
lrc |
a numeric parameter representing the logarithm of the rate constant. |
b0 |
a numeric parameter representing the intercept in linear denominator expression. |
b1 |
a numeric parameter representing the slope in linear denominator expression. |
a numeric vector of the same length as input
. It is the value of
the expression exp(-exp(lrc)*input)/(b0+b1*input)
.
If all of the arguments lrc
, b0
and b1
are names of objects, the gradient matrix with respect to
these names is attached as an attribute named gradient
.
1 2 3 4 |
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