Re: how to know number of lines from input file

[febty febriani]

thanks very much for your response. but when wrote lixe below ;

fh=fopen("$dir/data-1day-1Hz/result-${year}${month}${num}.dat","r");
y=fscanf(fh,"%lf",[N, inf]);

without any definitons of N, I met an error message that I must define N.

I tried to define N by writing N=number lines of data before fh so my script will be:

N=number
fh=fopen("$dir/data-1day-1Hz/result-${year}${month}${num}.dat","r");
y=fscanf(fh,"%lf");

but it didn't work.
any suggestions are appreciated.
Thanks very much.


best regards,
febty

2009/10/7 Søren Hauberg <address@hidden>

ons, 07 10 2009 kl. 11:56 +0900, skrev febty febriani:

> If I have command like below :
>
> fh=fopen("$dir/data-1day-1Hz/result-${year}${month}${num}.dat","r");
> y=fscanf(fh,"%lf");
>
> are there any tricks to know number of lines from the input file?

If your file only contains numbers, then you can just use the 'load'
command, which will give you a neatly formated matrix.

If you know the number of numbers in each line, then you can also do
something like

 y = fscanf (fh, "%lf", [N, Inf])

where N is the number of numbers per line.

Søren

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febty febriani
Indonesian Institute of Sciences
Research Center for Physics
Kompleks PUSPIPTEK
Serpong, Indonesia, 15314