Re: Using cell2csv

[richard]

On Tue, Jun 11, 2013 at 03:08:11PM +1000, Terry Duell wrote:
> Hello All,
> I'm running into a few difficulties figuring how best to use
> "cell2csv" to capture results.
> I really don't have a sound grasp of cell array indexing, and that
> isn't helping.
> In my script I first generate a cell array "datavals{1}" to hold
> text describing the contents of each column of data in the csv file.
> On each run through a loop I then add my calculated values as follows...
> 
> datavals{i+1}={filename, val1, val2, val3...};
> 
> When the calculation loops are done, I am trying to write "datavals"
> to a file, with the aim of having each entry written to the file as
> a separate record, using the following...
>  for i=1:n
>       cell2csv("filename",datavals{i});
> end
> 
> but this only leaves me with the values for the last write
> operation, ie the file is being overwritten.
> It doesn't seem like "cell2csv" has an "append" switch.
> I have tried opening a file...
> 
> fp = fopen("filename","a");
> 
> and using
> 
> cell2csv(fp, datavals{i}); within my write loop, but that also ends
> up with only the last write.
> 
> Can someone please point me to a solution?
> 
A couple of questions: 
When you open the file is it possible to set the mode to append? 
Also, Have you considered the "database" application - you mention 
columns of data? Would that be more suited to your needs? 

regards

Richard A Lough