fit_wafer: Fit curves to a wafer

In csgillespie/voltagefit: Voltage Curve Fitting

Description

Fits curves to a wafer and returns the curve parameters and resulting cost for both forward and backwards curves. Wafers can be validated and transformed before fitting. Devices are fitted in parallel automatically.

Usage

trans_device(wafer)

validate_device(wafer)

trans_filter_device(wafer, validate = validate_device, trans = trans_device,
  verbose = TRUE)

fit_wafer(wafer, trans = trans_device, validate = validate_device,
  cost_func = area_between_curves, dev_curve = curve_piecewise,
  initparams = NULL, maxit = 1e+05, verbose = TRUE, plot = FALSE)

Arguments

wafer	Data from a single wafer
validate	(Optional) Wafer validate function
trans	(Optional) Wafer ransform function
verbose	(Optional) Print verbose output (Default: TRUE)
cost_func	(Optional) Cost function
dev_curve	(Optional) Model device voltage curve
initparams	(Optional) Inital parameter estimation
maxit	(Optional) Maxiumum number of iterations for use in optimiser (Default: 10000)
plot	(Optional) Plot all devices and fitted curves (Default: FALSE)

Value

A data.frame consisting of the fields:

id

Wafer ID

name

Each device on the wafer

cost

The value of the cost function for each device

direction

Whether the curve direction is forward or backward

X1 ... X6

The parameters characterising the curve

Examples

data(voltage, package="voltagefit")
## Not run: 
fit_wafer(wafer6138)

## End(Not run)

csgillespie/voltagefit documentation built on May 14, 2019, 12:23 p.m.