* using log directory 'd:/Rcompile/CRANpkg/local/2.13/FlexParamCurve.Rcheck'
* using R version 2.13.2 (2011-09-30)
* using platform: i386-pc-mingw32 (32-bit)
* using session charset: ISO8859-1
* checking for file 'FlexParamCurve/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'FlexParamCurve' version '1.3'
* checking package namespace information ... OK
* checking package dependencies ... OK
* checking if this is a source package ... OK
* checking whether package 'FlexParamCurve' can be installed ... OK
* checking installed package size ... OK
* checking package directory ... OK
* checking for portable file names ... OK
* checking DESCRIPTION meta-information ... OK
* checking top-level files ... OK
* checking index information ... OK
* checking package subdirectories ... OK
* checking R files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... OK
* checking whether the package can be loaded with stated dependencies ... OK
* checking whether the package can be unloaded cleanly ... OK
* checking whether the namespace can be loaded with stated dependencies ... OK
* checking whether the namespace can be unloaded cleanly ... OK
* checking for unstated dependencies in R code ... OK
* checking S3 generic/method consistency ... OK
* checking replacement functions ... OK
* checking foreign function calls ... OK
* checking R code for possible problems ... NOTE
SSposnegRichards: no visible binding for global variable
  'pnmodelparams'
posnegRichardsInit : richards3: no visible binding for global variable
  'pnmodelparams'
posnegRichardsInit : func21: no visible binding for global variable
  'pnmodelparams'
posnegRichardsInit : richardsR: no visible binding for global variable
  'pnmodelparams'
posnegRichardsInit: no visible binding for global variable
  'pnmodelparams'
posnegRichards_eqn: no visible binding for global variable
  'pnmodelparams'
* checking Rd files ... OK
* checking Rd metadata ... OK
* checking Rd cross-references ... OK
* checking for missing documentation entries ... OK
* checking for code/documentation mismatches ... OK
* checking Rd \usage sections ... OK
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking contents of 'data' directory ... OK
* checking data for non-ASCII characters ... OK
* checking data for ASCII and uncompressed saves ... OK
* checking examples ... ERROR
Running examples in 'FlexParamCurve-Ex.R' failed
The error most likely occurred in:

> ### Name: SSposnegRichards
> ### Title: Self-Starting Positive-Negative Richards Model
> ### Aliases: SSposnegRichards
> 
> ### ** Examples
> 
>  set.seed(3) #for compatability issues
>  require(graphics)
>     # retrieve mean estimates of 8 parameters using getInitial
>     # and posneg_data object
>     data(posneg_data)
>     modpar(posneg_data$age, posneg_data$mass,verbose=TRUE)
[1] "Values from SSposnegRichards:"
         Asym             K          Infl             M         RAsym 
 4.425353e+03  6.622676e-02  2.357681e+01  4.193593e-01 -1.480429e+03 
           Rk            Ri            RM 
 1.002176e-01  1.062603e+02  1.902541e-01 
[1] "try 8 parameter curve fit in nls"
[1] "Values from SSposnegRichards:"
         Asym             K          Infl             M         RAsym 
 4.423388e+03  6.662887e-02  2.368873e+01  4.341959e-01 -1.482105e+03 
           Rk            Ri            RM 
 1.002176e-01  1.063420e+02  1.902541e-01 
[1] "8 parameter nls fit successful"
$Asym
[1] 4445.192

$K
[1] 0.06416126

$Infl
[1] 23.2432

$M
[1] 0.3591577

$RAsym
[1] -1065.771

$Rk
[1] 0.2186637

$Ri
[1] 104.1584

$RM
[1] 0.9781714

$first_y
[1] NA

$x_at_first_y
[1] NA

$last_y
[1] NA

$x_at_last_y
[1] NA

$twocomponent_age
[1] NA

$verbose
[1] TRUE

$force4par
[1] FALSE

>     getInitial(mass ~ SSposnegRichards(age, Asym, K, Infl, M, 
+         RAsym, Rk, Ri, RM, modno = 1), data = posneg_data)
[1] "Values from SSposnegRichards:"
         Asym             K          Infl             M         RAsym 
 4.459788e+03  6.279162e-02  2.292265e+01  3.176732e-01 -1.229655e+03 
           Rk            Ri            RM 
 1.776160e-01  1.058112e+02  9.353180e-01 
$Asym
[1] 4459.788

$K
[1] 0.06279162

$Infl
[1] 22.92265

$M
[1] 0.3176732

$RAsym
[1] -1229.655

$Rk
[1] 0.177616

$Ri
[1] 105.8112

$RM
[1] 0.935318

> 
>     # retrieve mean estimates and produce plot to illustrate fit for 
>     # curve with RM fixed
>     pars <- coef(nls(mass ~ SSposnegRichards(age, 
+         Asym = Asym, K = K, Infl = Infl, RAsym = RAsym, Rk = Rk, M = M,
+         	Ri = Ri, modno = 2), data = posneg_data))
[1] "Values from SSposnegRichards:"
         Asym             K          Infl             M         RAsym 
 4524.5657408     0.0482221   125.0143242     0.6569697 -1063.4016872 
           Rk            Ri 
    0.2121409   376.9088285 
Error in nlsModel(formula, mf, start, wts) : 
  singular gradient matrix at initial parameter estimates
Calls: coef -> nls -> nlsModel
Execution halted