Difference between revisions of "Statistical Algorithms Importer: Linux-compiled Project FAQ"
From Gcube Wiki
(→How to use the input parameters) |
(→How to use the input parameters) |
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int main(int argc, char **argv) { | int main(int argc, char **argv) { | ||
printf("BasicStatistic"); | printf("BasicStatistic"); | ||
− | printf("Operator: %s\n",argv[1]); | + | printf("Operator: %s\n", argv[1]); |
− | printf("Maximum number of items considered: %s\n",argv[2]); | + | printf("Maximum number of items considered: %s\n", argv[2]); |
− | printf("Input file: %s\n",argv[3]); | + | printf("Input file: %s\n", argv[3]); |
FILE * finput; | FILE * finput; | ||
Line 42: | Line 42: | ||
finput = fopen(argv[3], "r"); | finput = fopen(argv[3], "r"); | ||
− | if (finput == NULL){ | + | if (finput == NULL) { |
printf("No input file found: %s\n", argv[3]); | printf("No input file found: %s\n", argv[3]); | ||
return -1; | return -1; | ||
} | } | ||
− | int limit=atoi(argv[2]); | + | int limit = atoi(argv[2]); |
− | int i=0; | + | int i = 0; |
− | int value=0; | + | int value = 0; |
− | int result=0; | + | int result = 0; |
− | while (((read = getline(&line, &len, finput)) != -1) && (i<limit||limit==-1)) { | + | while (((read = getline(&line, &len, finput)) != -1) |
− | printf("Retrieved line of length %zu and value: %s", read,line); | + | && (i < limit || limit == -1)) { |
− | value=atoi(line); | + | printf("Retrieved line of length %zu and value: %s", read, line); |
− | if(i==0){ | + | value = atoi(line); |
− | result=value; | + | if (i == 0) { |
+ | result = value; | ||
} else { | } else { | ||
− | if (strcmp(argv[1], "max") == 0) | + | if (strcmp(argv[1], "max") == 0) { |
− | + | if (value > result) { | |
− | if(value>result){ | + | result = value; |
− | result=value; | + | |
} | } | ||
} else { | } else { | ||
− | if (strcmp(argv[1], "min") == 0) | + | if (strcmp(argv[1], "min") == 0) { |
− | + | if (value < result) { | |
− | if(value<result){ | + | result = value; |
− | result=value; | + | |
} | } | ||
} else { | } else { | ||
− | if (strcmp(argv[1], "average") == 0) | + | if (strcmp(argv[1], "average") == 0) { |
− | + | result = result + value; | |
− | result= | + | |
} else { | } else { | ||
break; | break; | ||
Line 82: | Line 80: | ||
i++; | i++; | ||
} | } | ||
− | |||
− | |||
− | |||
− | |||
− | |||
+ | if (strcmp(argv[1], "average") == 0 && i > 0) { | ||
+ | result = result / i; | ||
+ | } | ||
fclose(finput); | fclose(finput); | ||
− | if (line){ | + | if (line) { |
free(line); | free(line); | ||
} | } | ||
Line 96: | Line 92: | ||
//Write result | //Write result | ||
FILE *foutput = fopen("output.txt", "w"); | FILE *foutput = fopen("output.txt", "w"); | ||
− | if (foutput == NULL) | + | if (foutput == NULL) { |
− | + | ||
printf("Error opening file!\n"); | printf("Error opening file!\n"); | ||
return -1; | return -1; | ||
Line 108: | Line 103: | ||
return 0; | return 0; | ||
} | } | ||
+ | |||
</source> | </source> | ||
Revision as of 20:02, 3 November 2017
Contents |
F.A.Q. of Statistical Algorithms Importer (SAI), here are common mistakes we have found in Linux-compiled Project.
How to use the input parameters
- For example we consider BasicStatistic algorithm that use basicstatistic linux executable file:
- DataMiner show the BasicStatistic algorithm in this way:
- Below the C++ code in sample which generates basicstatistic linux executable file:
//============================================================================ // Name : BasicStatistic.cpp // Author : Giancarlo Panichi // Version : // Copyright : GNU GENERAL PUBLIC LICENSE. Version 3.0 // Description : BasicStatistic in C++, Ansi-style //============================================================================ #include <iostream> #include <stdio.h> #include <stdlib.h> #include <string.h> using namespace std; int main(int argc, char **argv) { printf("BasicStatistic"); printf("Operator: %s\n", argv[1]); printf("Maximum number of items considered: %s\n", argv[2]); printf("Input file: %s\n", argv[3]); FILE * finput; char * line = NULL; size_t len = 0; ssize_t read; finput = fopen(argv[3], "r"); if (finput == NULL) { printf("No input file found: %s\n", argv[3]); return -1; } int limit = atoi(argv[2]); int i = 0; int value = 0; int result = 0; while (((read = getline(&line, &len, finput)) != -1) && (i < limit || limit == -1)) { printf("Retrieved line of length %zu and value: %s", read, line); value = atoi(line); if (i == 0) { result = value; } else { if (strcmp(argv[1], "max") == 0) { if (value > result) { result = value; } } else { if (strcmp(argv[1], "min") == 0) { if (value < result) { result = value; } } else { if (strcmp(argv[1], "average") == 0) { result = result + value; } else { break; } } } } i++; } if (strcmp(argv[1], "average") == 0 && i > 0) { result = result / i; } fclose(finput); if (line) { free(line); } //Write result FILE *foutput = fopen("output.txt", "w"); if (foutput == NULL) { printf("Error opening file!\n"); return -1; } fprintf(foutput, "BasicStatistic Result: \n"); fprintf(foutput, "%d\n", result); fclose(foutput); return 0; }
- test.txt:
9 20 12 23 44 65 80 100
- with basicstatistic max -1 test.txt, output.txt:
BasicStatistic Result: 100
- BasicStatistic code: