Rev | Line | |
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[37] | 1 | /* compile with: cmex bino_sample.c util.o -lm |
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| 2 | */ |
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| 3 | #include "mex.h" |
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| 4 | #include "util.h" |
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| 5 | |
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| 6 | void mexFunction(int nlhs, mxArray *plhs[], |
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| 7 | int nrhs, const mxArray *prhs[]) |
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| 8 | { |
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| 9 | int rows, cols, n, i; |
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| 10 | double *p, *r; |
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| 11 | |
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| 12 | if(nrhs != 2) |
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| 13 | mexErrMsgTxt("Usage: r = bino_sample(p, n)"); |
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| 14 | |
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| 15 | /* prhs[0] is first argument. |
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| 16 | * mxGetPr returns double* (data, col-major) |
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| 17 | * mxGetM returns int (rows) |
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| 18 | * mxGetN returns int (cols) |
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| 19 | */ |
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| 20 | rows = mxGetM(prhs[0]); |
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| 21 | cols = mxGetN(prhs[0]); |
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| 22 | p = mxGetPr(prhs[0]); |
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| 23 | n = (int)*mxGetPr(prhs[1]); |
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| 24 | if(mxGetM(prhs[1]) != 1 || mxGetN(prhs[1]) != 1) |
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| 25 | mexErrMsgTxt("n must be scalar"); |
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| 26 | |
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| 27 | if(mxIsSparse(prhs[0])) |
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| 28 | mexErrMsgTxt("Cannot handle sparse matrices. Sorry."); |
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| 29 | |
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| 30 | /* plhs[0] is first output */ |
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| 31 | plhs[0] = mxCreateDoubleMatrix(rows, cols, mxREAL); |
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| 32 | r = mxGetPr(plhs[0]); |
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| 33 | for(i=0;i<rows*cols;i++) { |
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| 34 | *r++ = BinoRand(*p++, n); |
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| 35 | } |
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| 36 | } |
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| 37 | |
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