/* nag_anova_icc (g04gac) Example Program.
 *
 * Copyright 2024 Numerical Algorithms Group.
 *
 * Mark 30.3, 2024.
 */
/* Pre-processor includes */
#include <nag.h>
#include <stdio.h>

int main(void) {
  /* Integer scalar and array declarations */
  Integer i, j, k, nrater, nsubj, t, nrep;
  Integer exit_status = 0;

  /* Nag Types */
  NagError fail;
  Nag_ICCModelType mtype;
  Nag_ICCReliabilityType rtype;
  Nag_MissingType mscore;

  /* Double scalar and array declarations */
  double alpha, clevel, df1, df2, fstat, icc, lci, pvalue, uci, smiss;
  double *score = 0;

  /* Character scalar and array declarations */
  char crtype[40], cmtype[40], cmscore[40];

  /* Initialize the error structure */
  INIT_FAIL(fail);

  printf("nag_anova_icc (g04gac) Example Program Results\n\n");

  /* Skip heading in data file */
  scanf("%*[^\n] ");

  /* Read in the problem size */
  scanf("%39s%39s%" NAG_IFMT "%" NAG_IFMT "%" NAG_IFMT "%*[^\n] ", cmtype,
        crtype, &nrep, &nsubj, &nrater);
  mtype = (Nag_ICCModelType)nag_enum_name_to_value(cmtype);
  rtype = (Nag_ICCReliabilityType)nag_enum_name_to_value(crtype);

  /* Read in the values used to identify missing scores */
  scanf("%39s%lf%*[^\n] ", cmscore, &smiss);
  mscore = (Nag_MissingType)nag_enum_name_to_value(cmscore);

  /* Allocate memory */
  if (!(score = NAG_ALLOC(nsubj * nrater * nrep, double))) {
    printf("Allocation failure\n");
    exit_status = -1;
    goto END;
  }

  /* Read in the rating data */
  for (k = 0; k < nrep; k++) {
    for (i = 0; i < nsubj; i++) {
      for (j = 0; j < nrater; j++) {
        t = j * nrep * nsubj + i * nrep + k;
        scanf("%lf", &score[t]);
      }
      scanf("%*[^\n] ");
    }
  }

  /* Read in alpha for the confidence interval */
  scanf("%lf%*[^\n] ", &alpha);

  /* Call nag_anova_icc (g04gac) to calculate the intraclass correlation */
  nag_anova_icc(mtype, rtype, nrep, nsubj, nrater, score, mscore, smiss, alpha,
                &icc, &lci, &uci, &fstat, &df1, &df2, &pvalue, &fail);
  if (fail.code != NE_NOERROR) {
    printf("Error from nag_anova_icc (g04gac).\n%s\n", fail.message);
    exit_status = -1;
    if (fail.code != NW_POTENTIAL_PROBLEM)
      goto END;
  }

  /* Display the results */
  printf("Intraclass Correlation           : %5.2f\n", icc);
  clevel = 100.0 * (1.0 - alpha);
  printf("Lower Limit for %4.1f%% CI         : %5.2f\n", clevel, lci);
  printf("Upper Limit for %4.1f%% CI         : %5.2f\n", clevel, uci);
  printf("F statistic                      : %5.2f\n", fstat);
  printf("Degrees of Freedom 1             : %5.1f\n", df1);
  printf("Degrees of Freedom 2             : %5.1f\n", df2);
  printf("p-value                          : %5.3f\n", pvalue);

END:
  NAG_FREE(score);

  return (exit_status);
}