Hello,

On the web page, search "To unsubscribe from R-help, get a password reminder, or change your subscription options enter your subscription email address:"

Pascal


Le 13/12/2012 13:21, Elizabeth Fuller Bettini a écrit :
I apologize if my "scream" went out to the whole list serve, I just
intended to email the moderator.  I have emailed a few times, and am
still on the list. I tried the link as well, but perhaps I am doing
something wrong.

On Wed, Dec 12, 2012 at 11:18 PM, Pascal Oettli <kri...@ymail.com
<mailto:kri...@ymail.com>> wrote:

    Hello,

    First, no need to scream.
    Second, David Winsemius already responded to you, last Dec.,9 (topic
    was "[R] Mean-Centering Question"). Here is a hint:
    https://stat.ethz.ch/mailman/__listinfo/r-help
    <https://stat.ethz.ch/mailman/listinfo/r-help> (bottom of the page)

    Pascal

    Le 13/12/2012 13:01, Elizabeth Fuller Bettini a écrit :

        PLEASE REMOVE ME FROM THIS LIST SERVE IMMEDIATELY!!!!!!

        On Wed, Dec 12, 2012 at 6:41 PM, dada <pa...@nottingham.ac.uk
        <mailto:pa...@nottingham.ac.uk>> wrote:

            Hi
            I would like to do neural netowrk analysis on my data. It
            look like this:

            drug    param1  param2  param3  param4  param5  class
            A       111     15      125     40      0.5     1
            B       347     13      280     55      3       2
            C       335     9       119     89      -40     1
            D       477     37      75      2       0       1
            E       863     24      180     10      5       2
            F       737     28      150     15      6       2
            G       390     63      167     12      0       3
            H       209     93      200     48      45      3
            I       376     72      201     45      -60     3
            J       262     16      205     49      25      3
            K       273     39      267     53      11      1
            L       192     33      164     19      15      2
            M       282     2       213     86      30      1
            N       111     11      198     68      -21     1
            O       387     20      143     12      16      2
            P       674     15      78      -20     -17     2
            R       734     54      140     24      7       2
            S       272     46      159     57      28      2
            T       245     37      90      6       31      2

            I have entered the code below:

                nn <- neuralnet(

            + class~param1+param2+param3+__param4+param5+param5,
            + data=mydata, hidden=2, err.fct="ce",
            + linear.output=FALSE)

            However the error appeared:
            Error in model.frame.default(formula.__reverse, data) :
                object is not a matrix

            I changed the data frame to matrix:
            mydata.mat=as.matrix(mydata)

            but still the same error appears...

            How can I fix this ? I would be very grateful for your help  !



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