Nonlinear Regression for Agricultural Applications


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Documentation for package ‘nlraa’ version 0.53

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barley Data from a paper by Arild Vold on response of barley to nitrogen fertilizer
bell self start for a bell-shaped curve
bg4rp self start for the reparameterized Beta growth function with four parameters
bgf self start for Beta Growth Function
bgf2 self start for Beta Growth Function
bgf4 self start for Beta growth function with four parameters
bgrp self start for the reparameterized Beta growth function
blin self start for a bilinear Function
dlf self start for Declining Logistic Function
expf self start for an exponential function
expfp self start for an exponential-plateau function
lfmc Live fuel moisture content
linp self start for linear-plateau function
nlsLMList Create a list of nls objects with the option of using nlsLM in addition to nls
nlsLMList.formula Formula method for nls 'LM' list method
nrh self start for non-rectangualr hyperbola (photosynthesis)
pexpf self start for plateau-exponential function
plin self start for plateau-linear function
pquad self start for plateau-quadratic function
profd self start for profile decay function
quadp self start for quadratic-plateau function
ratio self start for a rational curve
ricker self start for Ricker Function
sm Sorghum and Maize growth in Greece
SSbell self start for a bell-shaped curve
SSbg4rp self start for the reparameterized Beta growth function with four parameters
SSbgf self start for Beta Growth Function
SSbgf4 self start for Beta growth function with four parameters
SSbgrp self start for the reparameterized Beta growth function
SSblin self start for a bilinear Function
SSdlf self start for Declining Logistic Function
SSexpf self start for an exponential function
SSexpfp self start for an exponential-plateau function
SSlinp self start for linear-plateau function
SSnrh self start for non-rectangualr hyperbola (photosynthesis)
SSpexpf self start for plateau-exponential function
SSplin self start for plateau-linear function
SSpquad self start for plateau-quadratic function
SSprofd self start for profile decay function
SSquadp self start for quadratic-plateau function
SSratio self start for a rational curve
SSricker self start for Ricker Function
swpg Simulated data based on obseved data presented in Sinclair (1986) - Fig. 1A