o 7ήc@sdZddlmZmZmZddlZddlZddlZddl m Z ddl Z ddl m Z mZmZmZdZeddeDgZd d Zd d Ze ejjd dZeejjddZddZddZddZddZddZdS)zu Test used to verify PyWavelets Continuous Wavelet Transform computation accuracy against MathWorks Wavelet Toolbox. )divisionprint_functionabsolute_importN)assert_)uses_pymatbridgeuses_precomputedsize_setmatlab_result_dict_cwt)gausmexhmorlcgaushanfbspcmorcCsg|]}t|qS)pywtwavelist).0namerrO/tmp/pip-target-vg8gfxp4/lib/python/pywt/tests/test_matlab_compatibility_cwt.py srcCs*tdkrttddgd}|Sd}|S)z) Return the sizes to test for wavelet w. fullde)riiP)ri)rlistrange)w data_sizesrrr_get_data_sizess r!cCsDtdkrdtddtddtddf}|Sdtddf}|S)z* Return the scales to test for wavelet w. r)rnparange)rscalesrrr _get_scaless $r)c Cstd}|}tjd}d}d}|ztD]}tt dt t |}Wdn1s5wYtj |tddgkddr[|d |t|jd t|jn$|d kry|d |t|jd t|jd t|jn|d |d }||}t|d } t|| ||t|D]$} || } |d| t|D]} t| || |} t| || | ||qqqW|dS|w)Nzpymatbridge.MatlabV瞯<ignorerrr)axiswavelet-rzpsi = wavefun(wavelet,10)psidata)pytest importorskipr&random RandomStatestartwaveletswarningscatch_warnings simplefilter FutureWarningrContinuousWaveletanyarray set_variablestrbandwidth_frequencycenter_frequency fbsp_orderrun_codeasarray get_variable_check_accuracy_psir!randnr)_compute_matlab_result_check_accuracystop)Matlabmlabrstateepsilon epsilon_psir.r mlab_coderesr0Nr1r(coefsrrrtest_accuracy_pymatbridge_cwt(s>     &4      rUc Cstjd}d}d}d}tD]k}ttdtt |}tj |tj d}Wdn1s2wYt |}t ||||t |D]2}||} | tj } d} t|D]} | d7} t| || } t| || | ||t| || | ||qYqFqdS) Nr*gV瞯r+r,)dtyperr")r&r4r5r7r8r9r:r;rr<float32_load_matlab_result_psirGr!rHastyper)_load_matlab_resultrJ)rNrO epsilon32rPr.rw32r0rSr1data32 scales_countr(rTrrrtest_accuracy_precomputed_cwtLs0         r_cCs>|d|d}||}|dstdt|d}|S)z Compute the result using MATLAB. This function assumes that the Matlab variables `wavelet` and `data` have already been set externally. r(z"coefs = cwt(data, scales, wavelet)successzXMatlab failed to execute the provided code. Check that the wavelet toolbox is installed.rT)r?rD RuntimeErrorr&rErF)r1r.r(rMrQrRrTrrrrIhs  rIcCsHt|}dt||t|dg}|tvrtd|||t|}|S)" Load the precomputed result. _rTzIPrecompted Matlab result not found for wavelet: {0}, mode: {1}, size: {2})lenjoinr@r KeyErrorformat)r1r.r(rS coefs_keyrTrrrrZys rZcCs0d|dg}|tvrtd|t|}|S)rbrcr0z8Precompted Matlab psi result not found for wavelet: {0}})rer rfrg)r.psi_keyr0rrrrXsrXc Cslt|||\}}t|}||}tttt||} d||t|| f} t| |k| ddS)Nz@[RMS > EPSILON] for Scale: %s, Wavelet: %s, Length: %d, rms=%.3gmsg) rcwtr&conjrealsqrtmeanrdr) r1rr(rTr.rO coefs_pywtfreqerrrmsrkrrrrJs  rJc Cs`|jdd\}}||}tttt||}d||f}t||k|ddS)Ni)lengthz*[RMS > EPSILON] for Wavelet: %s, rms=%.3grj)wavefunflattenr&rnrorprmr) rr0r.rOpsi_pywtxrsrtrkrrrrGs rG)__doc__ __future__rrrr8numpyr&r2 numpy.testingrr pywt._pytestrrrr familiessumr7r!r)markslowrUr_rIrZrXrJrGrrrrs.    "