Dear Stephane,
Thank you very much for your help. Excuse me first to write the message in
English - I have not written message in French since 1992 and the keyboard
here is not convenient neither. Actually, we are carrying out the
so-called Constant Row Total-Multiple Correspondence Analysis (Guinand
1996, Biological Journal of the Linnean Society, vol. 58, pp173) using the
Fuzzy Correspondence Analysis program in the ADE-4 package. We use the
TextToBin-BlocTo1Categ option to make a binary category file, and the
input text file has only one column. We need to prepare a few files before
we can use FuzzyVar-Read Fuzzy File to prepare the .fuz file for Fuzzy
Correspondence Analysis. With small data sets, we don't have any problem.
But when processing a large data set, truncated files were produced from
'TextToBin-BlocTo1Categ' step. ADE-4 said that the binary matrix file
(the raw data file) is too large to be read by ADEbin. The data have 26
rows, and 8 variables with 35, 16, 46, 35, 26, 70, 64 and 27
categories, respectively (319 columns in total). There should be no
problem with computer power. I'm running ADE-4 on a Windows-XPP PC (DELL
Optiplex, Pentium 4, CPU3.06GHz, RAM 1.00Gb)
Could you, and anyone else on the list, help me on this issue please?
Thank you very much..
Sincerely,
De-Xing
On Tue, 22 Apr 2003, Stephane Dray wrote:
> La réponse en anglais..
> No problem withe the size of files... probably misuse of ADE-4.
> TextToBin-BlocTo1Categ is an option only for ONE categorical variable.
> I do not really understand what is the format of your data. You must
> be more precise (give an example of -your original table). If you
> have 36 rows (species) and 8 variables (traits, I suppose). You must
> use the Categvar module and may be "Read Label File". Give more
> information if you want more help.
>
> Sincerely,
>
>
>
> >Bonjour tout le monde,
> >
> >Pouriez vous m'aider en l'issue ci-desous SVP: J'ai du mal de faire une
> >Analyse ACM sur un groupe de donnees. En effet, le programme
> >'TestToBin-BlocTo1Categ' ne travaille pas correctement. Il concerne une
> >matrice de donnees de 26x319 (26 especes, 8 variables, totalement 319
> >categories). Est-ce que les donnees sont trop grandes?
> >
> >Merci d'avance pour vos remarques.
> >
> >De-Xing
> >----
> >Dear All,
> >
> >I have been trying to carry out a MCA analysis on some population genetic
> >data, but failed with a large data set. I wonder whether this is due
> >to the data set is too large? Has anyone ever had similar problem? Your
> >help is gratefully appreciated. The data table
> >concerned has 26 rows and 319 columns, with 8 blocks each having some
> >16-70 categories. Could you please help me on this? Thank you very much.
> >(The 'TextToBin-BlocTo1Categ' progran only recognised 7 blocks, and data
> >in the related files are truncated.)
> >
> >Yours sincerely,
> >De-Xing ZHANG
> >----------------------------------
> >De-Xing Zhang
> >PO Box 70
> >Institute of Zoology
> >Chinese Academy of Sciences
> >25 Beisihuan-Xi Road
> >Beijing 100080
> >P. R. China
> >
> >Tel: (+86) 010 6261 2962
> >Fax: (+86) 010 6261 2962
> >E-mail: dxzhang@panda.ioz.ac.cn
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