DOUBLE calc_fuzzy(DOUBLE** dataMatrix, int data_col_n)
{
// Assume we always have one row of data in this version
// i.e., dataMatrix is a type DOUBLE[data_col_n][1]
const int data_row_n = 1;
const bool debug = false;
FIS *fis;
DOUBLE **fisMatrix, **outputMatrix;
char *fis_file;
int fis_row_n, fis_col_n;
// NOTE: We need to store this with the GUI exe somehow...
fis_file = "bin/fismain.fis";
/* obtain FIS matrix */
fisMatrix = returnFismatrix(fis_file, &fis_row_n, &fis_col_n);
/* build FIS data structure */
fis = (FIS *)fisCalloc(1, sizeof(FIS));
fisBuildFisNode(fis, fisMatrix, fis_col_n, MF_POINT_N);
/* error checking */
if (data_col_n < fis->in_n) {
PRINTF("Given FIS is a %d-input %d-output system.\n",
fis->in_n, fis->out_n);
PRINTF("Given data file does not have enough input entries.\n");
fisFreeMatrix((void **)dataMatrix, data_row_n);
fisFreeMatrix((void **)fisMatrix, fis_row_n);
fisFreeFisNode(fis);
fisError("Exiting ...");
return -1.0;
}
/* debugging */
if (debug) fisPrintData(fis);
/* create output matrix */
outputMatrix = (DOUBLE **)fisCreateMatrix(data_row_n, fis->out_n, sizeof(DOUBLE));
/* evaluate FIS on each input vector */
for (int i = 0; i < data_row_n; i++)
getFisOutput(dataMatrix[i], fis, outputMatrix[i]);
/* print output vector */
if(debug) {
for (int i = 0; i < data_row_n; i++) {
for (int j = 0; j < fis->out_n; j++)
PRINTF("%.12f ", outputMatrix[i][j]);
PRINTF("\n");
}
}
DOUBLE fuzzyVal = outputMatrix[0][0];
/* clean up memory */
fisFreeFisNode(fis);
fisFreeMatrix((void **)dataMatrix, data_row_n);
fisFreeMatrix((void **)fisMatrix, fis_row_n);
fisFreeMatrix((void **)outputMatrix, data_row_n);
return fuzzyVal;
}
void
mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
double *output, *input;
unsigned int m ,n;
int i, j, handle, data_n;
FIS *p, *fis;
char action[STR_LEN], fisName[STR_LEN];
static FIS *head = NULL, *curr_fis = NULL;
static int initialized = 0; /* for mexAtExit() */
if (initialized == 0) {
mexAtExit(fisAtExit);
initialized = 1;
}
if (nrhs != 3)
mexErrMsgTxt("Needs 3 arguments.");
if (mxGetM(HANDLE) != 1 || mxGetN(HANDLE)!= 1)
mexErrMsgTxt("The first argument must be a scalar.");
if (!mxIsChar(ACTION))
mexErrMsgTxt("The second argument must be an action string.");
mxGetString(ACTION, action, mxGetN(ACTION)+1);
handle = mxGetScalar(HANDLE);
/* Evaluate the output of the FIS with the given handle*/
/* If handle <= 0, use current FIS */
if (strcmp(action, "evaluate") == 0) {
fis = handle > 0 ? fisMatchHandle(head, handle): curr_fis;
if (curr_fis == NULL)
mexErrMsgTxt("No FIS in memory!");
/* Check the dimensions of input vector */
/* This is permissive - granted as long as enough inputs
are there. So the user can pass the original training data
directly */
m = mxGetM(DATA);
n = mxGetN(DATA);
if (!((n >= fis->in_n) || ((n == 1) && (m >= fis->in_n)))) {
mexPrintf("Input vector is of size %d by %d.\n", m, n);
mexPrintf("Number of input variables should be %d.\n", fis->in_n);
mexErrMsgTxt("Input vector has a wrong size!");
}
if ((n == 1) && (m == fis->in_n))
data_n = 1;
else
data_n = m;
/* Create a matrix for the return argument */
OUTPUT = mxCreateDoubleMatrix(data_n, fis->out_n, mxREAL);
for (i = 0; i < data_n; i++) {
/* Assign pointers to the various parameters */
output = mxGetPr(OUTPUT);
input = mxGetPr(DATA);
/* Dispatch the inputs */
for (j = 0; j < fis->in_n; j++)
fis->input[j]->value = input[j*data_n+i];
/* Compute the output */
fisEvaluate(fis);
/* Collect the output */
for (j = 0; j < fis->out_n; j++)
output[j*data_n+i] = fis->output[j]->value;
}
}
/* Load parameters (from another fismat) to FIS */
else if (strcmp(action, "load_param") == 0) {
double **fismatrix;
int m, n;
if (!mxIsNumeric(DATA))
mexErrMsgTxt("The second argument must be a numeric data.");
/* put fismatrix into proper format */
m = mxGetM(DATA);
n = mxGetN(DATA);
fismatrix = (double **)fisCreateMatrix(m, n, sizeof(double));
for (i = 0; i < m; i++)
for (j = 0; j < n; j++)
fismatrix[i][j] = mxGetPr(DATA)[j*m + i];
/* Set FIS if handle > 0, otherwise use the original curr. FIS */
fis = handle > 0 ? fisMatchHandle(head, handle): curr_fis;
fisLoadParameter(fis, fismatrix);
/* Free fismatrix */
fisFreeMatrix((void **)fismatrix, m);
}
/* Load parameters (from an array) to FIS */
else if (strcmp(action, "load_param1") == 0) {
if (!mxIsNumeric(DATA))
mexErrMsgTxt("The second argument must be a numeric data.");
/* Set FIS if handle > 0, otherwise use the original curr. FIS */
fis = handle > 0 ? fisMatchHandle(head, handle): curr_fis;
fisLoadParameter1(fis, mxGetPr(DATA));
}
/* Build a new FIS node, add it to the end, and make it current */
/* Build a new FIS node, add it to the end, and make it current */
/* Name clash is not checked */
else if (strcmp(action, "build") == 0) {
double **fismatrix;
int m, n;
if (!mxIsNumeric(DATA))
mexErrMsgTxt("The second argument must be a numeric data.");
/* put fismatrix into proper format */
m = mxGetM(DATA);
n = mxGetN(DATA);
fismatrix = (double **)fisCreateMatrix(m, n, sizeof(double));
for (i = 0; i < m; i++)
for (j = 0; j < n; j++)
fismatrix[i][j] = mxGetPr(DATA)[j*m + i];
/* Create FIS node */
fis = (FIS *)calloc(1, sizeof(FIS));
fisBuildFisNode(fis, fismatrix, n);
fis->handle = fisFindMaxHandle(head) + 1;
fis->next = NULL;
/* Free fismatrix */
fisFreeMatrix((void **)fismatrix, m);
/* Create a matrix for the return argument */
OUTPUT = mxCreateDoubleMatrix(1, 1, mxREAL);
/* output[0] is equal to the handle of newly created FIS */
output = mxGetPr(OUTPUT);
if (head == NULL) {
head = fis;
} else {
/* Find p as the tail of the FIS list */
/* Also find the handle for this new node */
for (p = head; p->next != NULL; p = p->next);
p->next = fis;
}
/* curr_fis is the newly created fis */
curr_fis = fis;
output[0] = fis->handle;
}
/* Delete the current FIS, change the current FIS to head */
/* If there is a valid handle, delete the FIS with that handle */
else if (strcmp(action, "delete") == 0) {
if (head == NULL) {
mexPrintf("No FIS in memory!\n");
return;
}
/* Delete FIS with given valid handle. */
/* If given handle is unvalid, delete the curretn FIS */
fis = handle > 0 ? fisMatchHandle(head, handle): curr_fis;
if (fis == head)
head = head->next;
else {
/* find p such p->next == fis */
for (p = head; p->next != fis; p = p->next);
p->next = fis->next;
}
/* Change current FIS to head if it is deleted */
if (fis == curr_fis)
curr_fis = head;
fisFreeFisNode(fis);
}
/* Delete all data structure */
/* This is used in mexAtExit only */
else if (strcmp(action, "at_exit") == 0) {
FIS *next, *now = head;
/*
if (head != NULL)
mexPrintf("Destroying FIS data structures ...\n");
*/
while (now != NULL) {
mexPrintf("Deleting %s FIS data structure...\n", now->name);
next = now->next;
fisFreeFisNode(now);
now = next;
}
}
/* Print the FIS with given handle. DATA is not used. */
else if (strcmp(action, "print_fis_data") == 0) {
fis = fisMatchHandle(head, handle);
fisPrintData(fis);
}
/* Set current FIS by handle if handle > 0, otherwise by name */
else if (strcmp(action, "set_current") == 0) {
if (head == NULL)
mexErrMsgTxt("No FIS is in memory!\n");
if (handle <= 0) { /* by namee */
if (!mxIsChar(DATA))
mexErrMsgTxt("The third argument must be a string.");
/* Create the fisName string */
mxGetString(DATA, fisName, mxGetN(DATA)+1);
fis = fisMatchName(head, fisName);
if (fis == NULL)
mexErrMsgTxt("Cannot find an FIS with the given name!");
} else /* by handle */
fis = fisMatchHandle(head, handle);
curr_fis = fis;
}
/* Return the handle of the current FIS if DATA == [] */
/* (Return 0 if the current FIS is NULL) */
/* If DATA is not [], return handle with that name. */
else if (strcmp(action, "return_handle") == 0) {
OUTPUT = mxCreateDoubleMatrix(1, 1, mxREAL);
if (mxIsNumeric(DATA) && (mxGetM(DATA) == 0) && (mxGetN(DATA) == 0))
*(mxGetPr(OUTPUT)) = curr_fis == NULL ? 0:curr_fis->handle;
else { /* return handle with given name */
if (!mxIsChar(DATA))
mexErrMsgTxt("The third argument must be a string.");
/* Create the fisName string */
mxGetString(DATA, fisName, mxGetN(DATA)+1);
fis = fisMatchName(head, fisName);
if (fis == NULL)
mexErrMsgTxt("Cannot find an FIS with the given name!");
*(mxGetPr(OUTPUT)) = fis == NULL ? 0:fis->handle;
}
}
else if (strcmp(action, "print_name") == 0) {
/* print name of FIS with given handle */
if (head == NULL)
mexErrMsgTxt("No FIS is in memory.");
fis = handle > 0 ? fisMatchHandle(head, handle): curr_fis;
mexPrintf("%s\n", fis->name);
}
else if (strcmp(action, "list_all") == 0) {
if (head == NULL) {
mexPrintf("No FIS is in memory.\n");
return;
}
for (p = head; p != NULL; p = p->next) {
/*
mexPrintf("p = %d\t", p);
mexPrintf("p->next = %d\n", p->next);
*/
mexPrintf("\t%d\t%s\n", p->handle, p->name);
}
mexPrintf("\n");
}
/* Unrecognized action string */
else {
mexPrintf("The action string %s is not recognized!\n", action);
return;
}
}