Taiyo Mineo / Mbed 2 deprecated WeatherPredictor

Weather casting with Machine Learning (SVM and SRNN).

Dependencies:   EthernetInterface GraphicHandler NTPClient SRNN SVM SensorModule mbed-rtos mbed

main_util.cpp@2:20ecfe6edd71, 2015-02-18 (annotated)

Committer:
yukari_hinata
Date:
Wed Feb 18 15:02:16 2015 +0000
Revision:
2:20ecfe6edd71
Child:
3:5add3759e08a

        

        
Who changed what in which revision?

        

            
                
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#include "main_util.hpp"





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void check_file_open(FILE* file_p, const char* file_name)





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{





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    if ( file_p == NULL ) {





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        fprintf( stderr, "Error : file %s open faild. \r\n", file_name );





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        exit(1);





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    }





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}





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// データ系列ファイルの行数をLEN_DATA_SEQUENCEまで切り詰める





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void truncate_data_file(void)





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{





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    FILE* dat_file_fp;





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    const char tmp_file_name[] = "/local/TMP_DAT.CSV";





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    int line;





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    char trunc_buf_str[BUF_SIZE];





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    // 最初に現在の行数を数える





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    dat_file_fp = fopen( SEQUENCE_DATA_NAME, "r");





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    check_file_open( dat_file_fp, SEQUENCE_DATA_NAME);





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    line = 0;





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    while(fgets(trunc_buf_str, BUF_SIZE, dat_file_fp) != NULL) {





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        line++;





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        // printf("line %d : %s\r\n", line, trunc_buf_str);





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    }





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    // printf("current num of line : %d \r\n", line);





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    fclose( dat_file_fp );





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    // 切り詰め開始





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    if ( line > LEN_DATA_SEQUENCE ) {





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        FILE* tmp_fp;





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        int diff_line = line - LEN_DATA_SEQUENCE;





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        dat_file_fp = fopen(SEQUENCE_DATA_NAME, "r");





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        check_file_open( dat_file_fp, SEQUENCE_DATA_NAME );





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        line = 0;





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        while(fgets(trunc_buf_str, BUF_SIZE, dat_file_fp) != NULL) {





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            line++;





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            if (line == diff_line) break;





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        }





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        // diff_line以降をテンポラリにコピー





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        tmp_fp = fopen( tmp_file_name, "w");





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        check_file_open( tmp_fp, tmp_file_name );





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        fflush( tmp_fp );





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        fflush( dat_file_fp );





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        while( fgets( trunc_buf_str, BUF_SIZE, dat_file_fp) != NULL) {





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            fputs( trunc_buf_str, tmp_fp);





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        }





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        //fclose( tmp_fp );





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        //fclose( dat_file_fp );





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        // 更新





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        tmp_fp = freopen( tmp_file_name, "r", tmp_fp);





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        check_file_open( tmp_fp, tmp_file_name );





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        dat_file_fp = freopen(SEQUENCE_DATA_NAME, "w", dat_file_fp);





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        check_file_open( dat_file_fp, SEQUENCE_DATA_NAME );





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        // 一時ファイルからコピー





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        fflush( tmp_fp );





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        fflush( dat_file_fp );





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        while( fgets( trunc_buf_str, BUF_SIZE, tmp_fp) != NULL) {





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            fputs( trunc_buf_str, dat_file_fp);





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        }





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        fclose( dat_file_fp );





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        fclose( tmp_fp );





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        // テンポラリの削除





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        remove( tmp_file_name );





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    }





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}