11-12-2008
calculate average
I have a file which is
2
3
4
5
6
6
so i am writing program in C to calculate mean..
#include<stdio.h>
#include<string.h>
#include <math.h>
double CALL mean(int n , double x[])
main (int argc, char **argv)
{
char Buf[200],SEQ[100];
int i;
double result = 0;
FILE *fp;
fp=fopen(argv[1],"r");
while(fgets(Buf,20,fp))
{
sscanf(Buf,"%s",SEQ);
x=SEQ;
//printf("%s\n",SEQ);
}
fclose(fp);
{
for (i = 0; i < n; i++) result += x[i];
result /= n;
return result;
printf("%f", result);
}
}
But it is showing segmentation fault
any solution?
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SEQ(1) User Commands SEQ(1)
NAME
seq - print a sequence of numbers
SYNOPSIS
seq [OPTION]... LAST
seq [OPTION]... FIRST LAST
seq [OPTION]... FIRST INCREMENT LAST
DESCRIPTION
Print numbers from FIRST to LAST, in steps of INCREMENT.
Mandatory arguments to long options are mandatory for short options too.
-f, --format=FORMAT
use printf style floating-point FORMAT
-s, --separator=STRING
use STRING to separate numbers (default:
)
-w, --equal-width
equalize width by padding with leading zeroes
--help display this help and exit
--version
output version information and exit
If FIRST or INCREMENT is omitted, it defaults to 1. That is, an omitted INCREMENT defaults to 1 even when LAST is smaller than FIRST. The
sequence of numbers ends when the sum of the current number and INCREMENT would become greater than LAST. FIRST, INCREMENT, and LAST are
interpreted as floating point values. INCREMENT is usually positive if FIRST is smaller than LAST, and INCREMENT is usually negative if
FIRST is greater than LAST. FORMAT must be suitable for printing one argument of type 'double'; it defaults to %.PRECf if FIRST, INCRE-
MENT, and LAST are all fixed point decimal numbers with maximum precision PREC, and to %g otherwise.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report seq translation bugs to <http://translationproject.org/team/>
AUTHOR
Written by Ulrich Drepper.
COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
The full documentation for seq is maintained as a Texinfo manual. If the info and seq programs are properly installed at your site, the
command
info coreutils 'seq invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 SEQ(1)