Moreno Ignazio Coco wrote:
Hi everybody,
I am struggling to save txt. or csv. large sparse matrices (1024 X 768
image size), initialized at 0.1.
image1[0:10,0:10]
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
[2,] 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
[3,] 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
[4,] 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
[5,] 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
[6,] 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
[7,] 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
[8,] 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
[9,] 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
[10,] 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
with small distributions located at different points of matrix.
If I try the same matrix but initialized at 0, it can save it.
It seems that R manages to save up around 800 X 600 decimal matrices but
for bigger sizes the output is an empty file. Does anyone know whether
there is a limit in saving such matrices and how can I work around this
problem?
Please tell us what you did exactly when you got the empty file:
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Best wishes,
Uwe Ligges
Thanks a lot,
Regards,
Moreno
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