Hello i'm currently working on an i/o file dealing with arrays, basically I have to get the information from an input file get the sum and the average for each row and then get the sum, average, and standard deviation for each column. I got the rows down but i'm having a lot of trouble with the arrays since I barely started learning about them. Any help is appreciated
Code:#include<stdio.h> /* defines printf, scanf, fprint, fscanf, fopen, fclose*/ int main() { double n1, n2, n3,sum, mean; double *sum1, *sum2, *sum3; double *ave1, *ave2, *ave3; double *sd1, *sd2, *sd3; int count; FILE *inp, /*input data*/ *outp; /*output data*/ /* Open the input and output files. */ inp = fopen("numbers.dat", "r"); outp = fopen("result.out", "w") /* Displays the table layout */ printf(" Count #1 #2 #3 Sum Average\n"); printf(" ---- --------- -------- -------- -------- --------\n"); /* while loop scanning input file rows and printing output results */ while (fscanf(inp, "%lf %lf %lf", &n1, &n2, &n3) != EOF) { sum=n1+n2+n3; mean=sum/3; count=count+1; printf("%9.3d %9.3lf %9.3lf %9.3lf %9.3lf %9.3lf\n", count, n1, n2, n3, sum, mean); fprintf(outp, "%9.3d %9.3lf %9.3lf %9.3lf %9.3lf %9.3lf\n", count, n1, n2, n3, sum, mean); } printf(" ---- --------- -------- -------- -------- --------\n"); /* Use only the first two columns. */ for ( count = 0; count < 17; ++count ) { printf("sum1 = %9.3f, sum2 = %9.3f, sum3 = %9.3f\n", sum1[count], sum2[count], sum3[count]); } printf(" Sum\n"); fclose(inp); fclose(outp); system("pause"); return (0); }
