several solutions come to mind:
(a) there may be a read() command in maxima. if not
(b) the file could be opened in lisp and read, doing something like
filedescriptor:?open("datafile");
... loop do... x1:?read(filedescriptor), y1:?read(filedescriptor)
.....
(c) change the file so that instead of
1.0 2.0 3.0
4.0 5.0 ...
you have
listofdata:
[1.0,2.0,3.0,
4.0,5.0, ...]$
or perhaps
listoflistofdata:
[[1.0 .... ],
[4.0, .... ]]$
Then load("datafile") should work.
RJF
Billinghurst, David (CRTS) wrote:
> I am trying to check results from Fortran code in maxima
>
> What I want to do is read lines of data from a file (or stdin), calculate some results, and print a mesage if a comparison fails.
>
> For example, I have files of data of the form
>
> x1 y1 z1 f1
> x2 y2 z2 f2
> ......
> xn yn zn fn
>
> where the entries are floating point numbers.
>
> I want to:
> - read the data in a line at a time
> - calculate f(xi,yi,zi)
> - compare f(xi,yi,zi) with fi
> - generate some output if the comparison fails.
>
>
> I have made some progress by transforming the file into straight line maxima code using awk, but was wondering if there was a more elegent solution.
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