Actualizing data generator and data print functions

Makefile

@@ -17,4 +17,4 @@ send :
 	git commit
 	git push
 
-
+rebuild : clean default

main.c

@@ -20,8 +20,9 @@ int main(int argc, char *argv[])
     print_network(net);
     destroy_network(net);*/
 
-    /*Data *data = csv_to_samples("mydata.csv", 3, ",", 70.0, "yes", 3);
-    destroy_data(data);*/
+    Data *data = csv_to_samples("mydata.csv", 3, ",", 70.0, "yes", 3);
+    print_data(data);
+    destroy_data(data);
     
     return 0;
 }

preprocessing.c

@@ -44,9 +44,17 @@ Data *init_data()
 
 void add_sample_to_data(Data *data, Sample *sample)
 {
-    data->last_sample->next_sample = sample;
-    data->last_sample = sample;
-    data->size++;
+    if(data->size == 0)
+    {
+        data->first_sample = sample;
+        data->last_sample = sample;
+        data->size++;
+    }else
+    {
+        data->last_sample->next_sample = sample;
+        data->last_sample = sample;
+        data->size++;
+    }
 }
 
 void destroy_sample(Sample *sample)
@@ -86,19 +94,60 @@ Data *csv_to_samples(char *path_to_csv, int n_features, char *features_separator
     FILE *file = fopen(path_to_csv, "r");
     char line[100], *dup;
     char *token;
-    //float val;
+    int features_count;
     if(file != NULL)
     {
         while(fgets(line, 100, file) != NULL)
         {
+            Sample *current_sample = init_sample();
+            Feature *temp_last_feature;
+            features_count = n_features;
             dup = strtok(line, "\n"); //extracting line content without '\n'
             token = strtok(dup, features_separator);
             while(token != NULL)
             {
-                printf("current token = %s\n", token);
+                if(features_count > 0) //first put features into current sample
+                {
+                    if(current_sample->first_feature == NULL)
+                    {
+                        current_sample->first_feature = init_feature( atof(token) );
+                        temp_last_feature = current_sample->first_feature;
+                    }else
+                    {
+                        temp_last_feature->next_feature = init_feature( atof(token) );
+                        temp_last_feature = temp_last_feature->next_feature;
+                    }
+                    features_count--;
+                }else //put label into current sample
+                {
+                    if(strcmp(apply_onthot_encode, "yes") == 0)
+                    {
+                        OneHotLabel *temp_last_hotlabel;
+                        int i;
+                        for(i=0 ; i<n_classes ; i++)
+                        {
+                            if(current_sample->first_hot == NULL)
+                            {
+                                current_sample->first_hot = init_onehotlabel(0.0);
+                                temp_last_hotlabel = current_sample->first_hot;
+                            }else
+                            {
+                                temp_last_hotlabel->next = init_onehotlabel(0.0);
+                                temp_last_hotlabel = temp_last_hotlabel->next;
+                            }
+                            if((float)i == atof(token) )
+                            {
+                                temp_last_hotlabel->value = 1.0;
+                            }
+                        }
+                    }else //when not applying one hot encoding, first_hot is directly equal to label
+                    {
+                        current_sample->first_hot = init_onehotlabel( atof(token) );
+                    }
+                }
                 token = strtok(NULL, features_separator);
             }
-            printf("----------------\n");
+            add_sample_to_data(data, current_sample);
         }
         fclose(file);
     }else
@@ -111,5 +160,52 @@ Data *csv_to_samples(char *path_to_csv, int n_features, char *features_separator
 
 void print_data(const Data *data)
 {
-    printf("Hello\n");
+    Sample *current_sample = data->first_sample;
+    Feature *temp_feature;
+    OneHotLabel *temp_hotlabel;
+    printf("#=============================================#\n");
+    if(current_sample != NULL)
+    {
+        int count = 1;
+        while(current_sample != NULL)
+        {
+            printf("Sample %d : ", count);
+            if(current_sample->t == TRAIN)
+            {
+                printf("TR\n");
+            }else if(current_sample->t == TEST)
+            {
+                printf("TE\n");
+            }else
+            {
+                printf("VA\n");
+            }
+            temp_feature = current_sample->first_feature;
+            while(temp_feature != NULL)
+            {
+                printf("%f ", temp_feature->value);
+                temp_feature = temp_feature->next_feature;
+            }
+            temp_hotlabel = current_sample->first_hot;
+            printf("##> ");
+            while(temp_hotlabel != NULL)
+            {
+                printf("%f ", temp_hotlabel->value);
+                temp_hotlabel = temp_hotlabel->next;
+            }
+            current_sample = current_sample->next_sample;
+            if(current_sample != NULL)
+            {
+                printf("\n#---------------------------------------------#\n");
+            }else
+            {
+                printf("\n");
+            }
+            count++;
+        }
+    }else
+    {
+        printf("Nothing to print : empty data !!!\n");
+    }
+    printf("#=============================================#\n");
 }