FreeBSD Bugzilla – Attachment 226758 Details for
Bug 257476
[NEW PORT] math/py-nifty7: Numerical Information Field Theory
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shar
py-nifty7.shar (text/plain), 4.46 KB, created by
Yuri Victorovich
on 2021-07-28 20:04:35 UTC
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shar
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Creator:
Yuri Victorovich
Created:
2021-07-28 20:04:35 UTC
Size:
4.46 KB
patch
obsolete
># This is a shell archive. Save it in a file, remove anything before ># this line, and then unpack it by entering "sh file". Note, it may ># create directories; files and directories will be owned by you and ># have default permissions. ># ># This archive contains: ># ># math/py-nifty7 ># math/py-nifty7/pkg-descr ># math/py-nifty7/Makefile ># math/py-nifty7/distinfo ># math/py-nifty7/example.py ># >echo c - math/py-nifty7 >mkdir -p math/py-nifty7 > /dev/null 2>&1 >echo x - math/py-nifty7/pkg-descr >sed 's/^X//' >math/py-nifty7/pkg-descr << '711c023102c7c58fd8bab0489c9949cd' >XNIFTy, "Numerical Information Field Theory", is a versatile library designed to >Xenable the development of signal inference algorithms that operate regardless of >Xthe underlying grids (spatial, spectral, temporal, ...) and their resolutions. >XIts object-oriented framework is written in Python, although it accesses >Xlibraries written in C++ and C for efficiency. >X >XWWW: https://ift.pages.mpcdf.de/nifty >711c023102c7c58fd8bab0489c9949cd >echo x - math/py-nifty7/Makefile >sed 's/^X//' >math/py-nifty7/Makefile << '5ec986f84aa65ebee4dab0ed8250ddb3' >XPORTNAME= nifty7 >XDISTVERSION= 7.2 >XCATEGORIES= math python >XMASTER_SITES= CHEESESHOP >XPKGNAMEPREFIX= ${PYTHON_PKGNAMEPREFIX} >X >XMAINTAINER= yuri@FreeBSD.org >XCOMMENT= Numerical Information Field Theory >X >XLICENSE= GPLv3 >XLICENSE_FILE= ${WRKSRC}/COPYING >X >XPY_DEPENDS= ${PYNUMPY} \ >X ${PYTHON_PKGNAMEPREFIX}scipy>0:science/py-scipy@${PY_FLAVOR} >XBUILD_DEPENDS= ${PY_DEPENDS} >XRUN_DEPENDS= ${PY_DEPENDS} >X >XUSES= python:3.6+ >XUSE_PYTHON= distutils autoplist >X >XNO_ARCH= yes >X >X.include <bsd.port.mk> >5ec986f84aa65ebee4dab0ed8250ddb3 >echo x - math/py-nifty7/distinfo >sed 's/^X//' >math/py-nifty7/distinfo << '5646c4dc451b6000fdcc42f00fe8c1e1' >XTIMESTAMP = 1627500537 >XSHA256 (nifty7-7.2.tar.gz) = c40ed1d64f2160b323af559f4aef5904138bdc1bb6d01c1362464691c1954127 >XSIZE (nifty7-7.2.tar.gz) = 183825 >5646c4dc451b6000fdcc42f00fe8c1e1 >echo x - math/py-nifty7/example.py >sed 's/^X//' >math/py-nifty7/example.py << 'f009dafa1dad638a2ff0e074eb0c1492' >X#%matplotlib inline >Ximport numpy as np >Ximport nifty7 as ift >Ximport matplotlib.pyplot as plt >Xplt.rcParams['figure.dpi'] = 100 >Xplt.style.use("seaborn-notebook") >X >Xdef Curvature(R, N, Sh): >X IC = ift.GradientNormController(iteration_limit=50000, >X tol_abs_gradnorm=0.1) >X # WienerFilterCurvature is (R.adjoint*N.inverse*R + Sh.inverse) plus some handy >X # helper methods. >X return ift.WienerFilterCurvature(R,N,Sh,iteration_controller=IC,iteration_controller_sampling=IC) >X >X >Xs_space = ift.RGSpace(N_pixels) >Xh_space = s_space.get_default_codomain() >XHT = ift.HarmonicTransformOperator(h_space, target=s_space) >X >X# Operators >XSh = ift.create_power_operator(h_space, power_spectrum=pow_spec) >XR = HT # @ ift.create_harmonic_smoothing_operator((h_space,), 0, 0.02) >X >X# Fields and data >Xsh = Sh.draw_sample_with_dtype(dtype=np.float64) >Xnoiseless_data=R(sh) >Xnoise_amplitude = np.sqrt(0.2) >XN = ift.ScalingOperator(s_space, noise_amplitude**2) >X >Xn = ift.Field.from_random(domain=s_space, random_type='normal', >X std=noise_amplitude, mean=0) >Xd = noiseless_data + n >Xj = R.adjoint_times(N.inverse_times(d)) >Xcurv = Curvature(R=R, N=N, Sh=Sh) >XD = curv.inverse >X >X# Get signal data and reconstruction data >Xs_data = HT(sh).val >Xm_data = HT(m).val >Xd_data = d.val >X >Xplt.plot(s_data, 'r', label="Signal", linewidth=2) >Xplt.plot(d_data, 'k.', label="Data") >Xplt.plot(m_data, 'k', label="Reconstruction",linewidth=2) >Xplt.title("Reconstruction") >Xplt.legend() >Xplt.show() >X >Xplt.plot(s_data - s_data, 'r', label="Signal", linewidth=2) >Xplt.plot(d_data - s_data, 'k.', label="Data") >Xplt.plot(m_data - s_data, 'k', label="Reconstruction",linewidth=2) >Xplt.axhspan(-noise_amplitude,noise_amplitude, facecolor='0.9', alpha=.5) >Xplt.title("Residuals") >Xplt.legend() >Xplt.show() >X >Xs_power_data = ift.power_analyze(sh).val >Xm_power_data = ift.power_analyze(m).val >Xplt.loglog() >Xplt.xlim(1, int(N_pixels/2)) >Xymin = min(m_power_data) >Xplt.ylim(ymin, 1) >Xxs = np.arange(1,int(N_pixels/2),.1) >Xplt.plot(xs, pow_spec(xs), label="True Power Spectrum", color='k',alpha=0.5) >Xplt.plot(s_power_data, 'r', label="Signal") >Xplt.plot(m_power_data, 'k', label="Reconstruction") >Xplt.axhline(noise_amplitude**2 / N_pixels, color="k", linestyle='--', label="Noise level", alpha=.5) >Xplt.axhspan(noise_amplitude**2 / N_pixels, ymin, facecolor='0.9', alpha=.5) >Xplt.title("Power Spectrum") >Xplt.legend() >Xplt.show() >f009dafa1dad638a2ff0e074eb0c1492 >exit >
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