[BioC] Fail to recognize CDF-file
Jens Vilstrup Johansen
jvj@nordicbioscience.com
Fri, 15 Nov 2002 09:51:24 +0100
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Hi
I've installed R (version 1.5.1) on my windows machine and used the =
install script to install the full Bioconductor package.=20
1. I change the directory to the folder containing my CEL-files and the =
CDF-file.
2. I load the 'affy'-package: "library (affy)". OK, so far.
3. I write "Data <-ReadAffy()" and get the following error message:'
reading CDF file
Error in read.cdffile(CDFfile, compress =3D compress.cdf) :=20
The specified file does not appear to be a CDF file.
What has gone wrong?
I've attached the CDF-file for U133A that I've used, in case that is the =
reason.
I'd really appreciate your advice.
Thanks!
regards,
Jens Johansen
Nordic Bioscience A/S
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<P><FONT SIZE=3D2 FACE=3D"Arial">Hi</FONT>
</P>
<P><FONT SIZE=3D2 FACE=3D"Arial">I've installed R (version 1.5.1) on my =
windows machine and used the install script to install the full =
Bioconductor package. </FONT></P>
<P><FONT SIZE=3D2 FACE=3D"Arial">1. I change the directory to the folder =
containing my CEL-files and the CDF-file.</FONT>
</P>
<P><FONT SIZE=3D2 FACE=3D"Arial">2. I load the 'affy'-package: =
"library (affy)". OK, so far.</FONT>
</P>
<P><FONT SIZE=3D2 FACE=3D"Arial">3. I write "Data =
<-ReadAffy()" and get the following error message:'</FONT>
</P>
<P><FONT SIZE=3D2 FACE=3D"Arial">reading CDF file</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Error in read.cdffile(CDFfile, =
compress =3D compress.cdf) : </FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial"> The specified =
file does not appear to be a CDF file.</FONT>
</P>
<P><FONT SIZE=3D2 FACE=3D"Arial">What has gone wrong?</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">I've attached the CDF-file for U133A =
that I've used, in case that is the reason.</FONT>
</P>
<P><FONT SIZE=3D2 FACE=3D"Arial">I'd really appreciate your =
advice.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Thanks!</FONT>
</P>
<P><FONT SIZE=3D2 FACE=3D"Arial">regards,</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial"> Jens Johansen</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Nordic Bioscience A/S</FONT>
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