Entering edit mode
Nolwenn LeMeur
▴
140
@nolwenn-lemeur-1609
Last seen 10.2 years ago
Hi Andras,
Just a quick note to let you know that I've made some progress but I
have not solved the problem yet.
The problem comes from the $DATATYPE where in FCS2.0 the data are
stored
as integer (I) and in FCS3.0 as single float precision (F).
I have also tried to read the files with prada and have the same
problem.
Nolwenn
dr. Treszl Andr?s wrote:
>Hi everyone,
>
>I am using the rflowcyt package to analyze data generated on a
FACSAria
>machine with the DiVa software. I collect data for 10 minutes after
an
>initial stimulation of the cells than I export the FCS 3.0 files to
>rflowcyt. After reading in the data I noticed that the data on
>channel "Time" do not correspond to the actual duration of the
measurement.
>Namely, when I collected data for 10 minutes (=600 sec), my time-
scale in
>rflowcyt spans to 250 "units", instead of 600. (I am calculating a
lot of
>statistics, thus the proper time-resolution would be very important.)
>However, if I try to analyze the same data with another software (e.
g.
>FlowJo), the scale is correct, thus the data needed are within the
file,
>simply I am not able to extract it. What should I do? How can I get
the
>proper time-resolution?
>
>My second question: I have never been able to read in my FCS3.0 file
from
>the DiVa software via the prada package. Does prada recognize the
DiVa-
>derived FCS3.0 files? If not, do you have an extension for it?
>
>Your help is greatly appreciated,
>
>best
>
>Andras
>
>Andras Treszl MD PhD
>First Department of Pediatrics, Semmelweis University, Budapest,
Hungary
>B?kay u. 53
>H-1083 Budapest, Hungary
>treszl at gyer1.sote.hu
>Tel.: 36/1/334-3186
>Fax.: 36/1/313-8212
>
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>