#ifndef UTILS_H
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#define UTILS_H
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#include <stdio.h>
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#include "list.h"
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void error(char *s);
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void malloc_error();
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void file_error(char *s);
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void strip(char *s);
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void strip_char(char *s, char bad);
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list *split_str(char *s, char delim);
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char *fgetl(FILE *fp);
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list *parse_csv_line(char *line);
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char *copy_string(char *s);
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int count_fields(char *line);
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double *parse_fields(char *line, int n);
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void normalize_array(double *a, int n);
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void scale_array(double *a, int n, double s);
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void translate_array(double *a, int n, double s);
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int max_index(double *a, int n);
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double constrain(double a, double max);
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double rand_normal();
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double mean_array(double *a, int n);
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double variance_array(double *a, int n);
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double **one_hot_encode(double *a, int n, int k);
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#endif
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