unable to use functions require DLL from package

Sat, Aug 16, 2014 1:54 AM

David Winsemius <dwinsemius <at> comcast.net> writes:

loaded.

provokes the
error, nor are you providing the

interpolator

(and at the
moment I have way too many packages loaded:

(which
neither of the postings to which you

Hi David,

Let me try this again, apologies.

I'm trying to run the package posum
(http://www.maths.bath.ac.uk/~sw283/simon/posum.html),
which is an old package and therefore relies on an old version
of the package mgcv (version 0.8-7).

I'm trying to run these packages using R version 3.1.0 on
windows 8 computer( x86_64-w64-mingw32/x64 (64-bit)).

When I run the example code given in the posum package I get
an error. The code I'm trying to run is:

data<-population.data(fam="p",adult=TRUE) #simulate data
b<-posum(data,fam="p")

The second line gives an error and a warning:

Error in .C("spline_coef", method = as.integer(method),
n = n, x = as.double(x),  :
  "spline_coef" not available for .C() for package "stats"
In addition: Warning message:
In if (d < 0) stop("d can not be negative in call to
null.space.dimension().") :
  the condition has length > 1 and only the first element
will be used

The part of the posum code that this error refers to is the
following:


cm.splinefun<-function(x, y = NULL, method = "fmm",gulim=0)

# modification of base package splinefun to produce co-monotonic
#interpolant
# by Hyman Filtering. if gulim!=0 then it is taken as the upper
# limit on the gradient.
{   x <- xy.coords(x, y)
    y <- x$y
    x <- x$x
    n <- length(x)
    method <- match(method, c("periodic", "natural", "fmm"))
    if (is.na(method))
        stop("splinefun: invalid interpolation method")
    if (any(diff(x) < 0)) {
        z <- order(x)
        x <- x[z]
        y <- y[z]
    }
    if (method == 1 && y[1] != y[n]) {
        warning("first and last y values differ in spline -
using y[1] for both")
        y[n] <- y[1]
    }
    z <- .C("spline_coef", method = as.integer(method), n = n,
        x = as.double(x), y = as.double(y), b = double(n),
c = double(n), d = double(n),
        e = double(if (method == 1) n else 0), PACKAGE = "stats")

    z$y<-z$y-z$x*gulim # trick to impose upper
    z$b<-z$b-gulim     # limit on interpolator gradient

    z<-hyman.filter(z) # filter gradients for co-monotonicity

    z$y<-z$y+z$x*gulim # undo trick
    z$b<-z$b+gulim     # transformation

    z<-spl.coef.conv(z) # force other coefficients to consistency

    rm(x, y, n, method)
    function(x) {
        .C("spline_eval", z$method, length(x), x = as.double(x),
            y = double(length(x)), z$n, z$x, z$y, z$b, z$c, z$d,
            PACKAGE = "stats")$y
    }
}


And finally:

R version 3.1.0 (2014-04-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_United Kingdom.1252  LC_CTYPE=
English_United Kingdom.1252
[3] LC_MONETARY=English_United Kingdom.1252 LC_NUMERIC=C

[5] LC_TIME=English_United Kingdom.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods  base

other attached packages:
[1] posum_2.0-0 mgcv_0.8-7

loaded via a namespace (and not attached):
[1] tools_3.1.0


I hope this is a more acceptable formulation of the problem!

Best wishes,
Lotte de Vries (Master student theoretical biology)



On Sat, Aug 16, 2014 at 3:24 AM, David Winsemius <dwinsemius at comcast.net>
wrote:

On Aug 15, 2014, at 2:56 PM, Charlotte de Vries wrote:

David Winsemius <dwinsemius <at> comcast.net> writes:


On Aug 15, 2014, at 8:06 AM, Charlotte de Vries wrote:

Hey there!

I'm having problems with the same code, but I get a different error:

This is apparently yet another example demonstrating why the Posting

Guide

suggests that you include the

text of any earlier posting to which you want us to consider. At the

moment I see no posting that has this subject.

Error in .C("spline_coef", method = as.integer(method), n = n, x =
as.double(x),  :
"spline_coef" not available for .C() for package "stats"


I'm using R3.1.0 on windows 8 and I've never used R before, so I might

have

made some terrible newby error (I have programmed quite a bit before,

but in C

and Matlab).

Thank you!

Best,

David Winsemius
Alameda, CA, USA

Hi David,

Thank you for answering. The original message I replied to was this

message

(http://comments.gmane.org/gmane.comp.lang.r.general/113245):

**********************************************

Well, that explains why I don't have a copy on my machine. It's dated 6
May 18:15 2008

Hi all,

I have issues using some basic functions in R such as these ones :

pp.test is not a "basic R function". I get this:

?pp.test

No documentation for ?pp.test? in specified packages and libraries:
you could try ???pp.test?

You are asked to include the package name for non-base R functions.

pp.test(R) (where is a vector of returns)

Error in .C("R_approx", as.double(x), as.double(y), as.integer(nx), xout

as.double(xout),  :
 C symbol name "R_approx" not in DLL for package "base"

boxcox(reg,plotit=T)  (where reg is an lm object)

Error in .C("spline_coef", method = as.integer(method), n =

as.integer(nx),

:
 C symbol name "spline_coef" not in DLL for package "base"

Well I do have the MASS package from which that function was loaded.

I get no error with the example in the help page:

 boxcox(Days+1 ~ Eth*Sex*Age*Lrn, data = quine,
         lambda = seq(-0.05, 0.45, len = 20), plotit=TRUE)

... and you are not providing a reproducible example that provokes the
error, nor are you providing the version numbers of R or MASS.

as I do miss some symbol names.

How can I overcome this serious problem ?
***********************************

But someone else reported a very similar problem (oddly enough using the
same function spline_coef but this time from the package stats rather

than

base (http://comments.gmane.org/gmane.comp.lang.r.general/115420):

Which was in turn dated: 2 Jun 06:04 2008

************************************
Subject: Missing "spline_coef" DLL and Rob Hyndmans monotonic

interpolator

Hello R help

I have been trying to use Rob Hyndman's monotonically increasing spline
function.  But like another user or two seem have a problem with a
missing DLL (namely "spline_coef").  None of the previous help postings
seemed to have any solutions to this problem.  As per a Ripley
suggestion I have deleted all previous versions of R and reinstalled R
2.7.0 and the problem persists.

Thanks

Paul.

x <- seq(0,4,l=20)

y <- sort(rnorm(20))

plot(x,y)
lines(spline(x, y, n = 201), col = 2) # Not necessarily monotonic
lines(cm.spline(x, y, n = 201), col = 3)

I get no error after:

library(demography)

# And then running that code.

I have an almost up-to-date version of R running on a mac (and at the
moment I have way too many packages loaded:

sessionInfo()

R version 3.1.0 Patched (2014-04-21 r65431)
Platform: x86_64-apple-darwin10.8.0 (64-bit)

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] grDevices datasets  splines   graphics  utils     stats
[7] grid      methods   base

other attached packages:
 [1] demography_1.17  ftsa_3.9         rainbow_3.2
 [4] pcaPP_1.9-49     forecast_5.4     timeDate_3010.98
 [7] zoo_1.7-11       XML_3.98-1.1     RCurl_1.95-4.3
[10] bitops_1.0-6     subplex_1.1-4    MASS_7.3-31
[13] cobs_1.2-2       quantreg_5.05    gplots_2.13.0
[16] reshape2_1.2.2   ggplot2_0.9.3.1  multcomp_1.3-1
[19] TH.data_1.0-3    mvtnorm_0.9-9999 data.table_1.9.2
[22] muhaz_1.2.5      downloader_0.3   RJSONIO_1.3-0
[25] plot3D_1.0-1     rms_4.2-0        SparseM_1.03
[28] Hmisc_3.14-4     Formula_1.1-1    survival_2.37-7
[31] sos_1.3-8        brew_1.0-6       lattice_0.20-29

loaded via a namespace (and not attached):
 [1] caTools_1.16        cluster_1.15.2      colorspace_1.2-4
 [4] descr_1.0.3         dichromat_2.0-0     digest_0.6.4
 [7] fracdiff_1.4-2      gdata_2.13.3        gtable_0.1.2
[10] gtools_3.4.0        hdrcde_3.1          KernSmooth_2.23-12
[13] ks_1.9.1            labeling_0.2        latticeExtra_0.6-26
[16] Matrix_1.1-3        mgcv_1.7-29         misc3d_0.8-4
[19] munsell_0.4.2       nlme_3.1-117        nnet_7.3-8
[22] parallel_3.1.0      plyr_1.8.1          proto_0.3-10
[25] quadprog_1.5-5      RColorBrewer_1.0-5  Rcpp_0.11.1
[28] rgl_0.93.996        sandwich_2.3-0      scales_0.2.3
[31] stringr_0.6.2       tools_3.1.0         tseries_0.10-32
[34] xtable_1.7-3


So that shows you how to provide some of the needed information (which
neither of the postings to which you resonded had done.)  PLEASE read the
Posting Guide.

Error in .C("spline_coef", method = as.integer(method), n = nx, x = x,

:
       C symbol name "spline_coef" not in DLL for package "stats"

Cm.spline code from
http://www-personal.buseco.monash.edu.au/~hyndman/Rlibrary/interpcode.R
**********************************

I hope that helps, thank you :)! I've tried calling spline_coef from both
stats and base, but I get the same error for both packages. I've also

tried

the solution suggested to these people, which was to remove any other R
versions on my laptop.

Best,
Lotte

David Winsemius
Alameda, CA, USA

unable to use functions require DLL from package

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