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How to use functions method in autopy

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dfinite_symbolic.py

Source:dfinite_symbolic.py

1# coding: utf-82r"""3Database of annihilators4Database for annihilating operators, i.e. elements of certain OreAlgebras, for various discrete and differentiable5symbolic functions.6The following discrete functions are supported:7    - binomial(an+b, cn+d) where a,b,c,d are fixed rational numbers and n is the variable8    - factorial(n)9    - harmonic_number(n)10The following differentiable functions are supported:11    - Trigonometric functions: sin(x), cos(x), arcsin(x), arccos(x), arctan(x), arccsc(x), arcsec(x)12    - Hyperbolic functions: sinh(x), cosh(x), arcsinh(x), arctanh(x), arccsch(x)13    - Logarithmic functions: exp(x), log(x), dilog(x)14    - Airy functions: airy_ai(x), airy_bi(x), airy_ai_prime(x), airy_bi_prime(x)15    - Bessel functions: bessel_I(k,x), bessel_J(k,x), bessel_K(k,x), bessel_Y(k,x), spherical_bessel_J(k,x) where k is a fixed16      rational number and x is the variable17    - Error functions: erf(x), erfc(x), erfi(x)18    - Integrals: exp_integral_e(k,x), exp_integral_ei(x), sin_integral(x), cos_integral(x), sinh_integral(x), cosh_integral(x)19    - Other: sqrt(x), elliptic_ec(x), elliptic_kc(x)20    21AUTHOR:22- Clemens Hofstadler (2018-03-01)23    24"""25#############################################################################26#  Copyright (C) 2018, Clemens Hofstadler (clemens.hofstadler@liwest.at).   #27#                                                                           #28#  Distributed under the terms of the GNU General Public License (GPL)      #29#  either version 2, or (at your option) any later version                  #30#                                                                           #31#  http://www.gnu.org/licenses/                                             #32#############################################################################33from __future__ import absolute_import, division34import sage.functions.airy35import sage.functions.bessel36import sage.functions.error37import sage.functions.exp_integral38import sage.functions.hyperbolic39import sage.functions.log40import sage.functions.other41import sage.functions.special42import sage.functions.trig43from sage.rings.all import QQ44from operator import pow45def symbolic_database(A, f, inner = None, k = 0):46    r"""47    Tries to return an annihilating operator of a symbolic operator `f`, i.e. an element from a (suitable) OreAlgebra `A`48    that represents a differential/recurrence equation for the symoblic epxression ``f(x)``49    50    INPUT:51    52    - `A` -- an OreAlgebra from which the annihilating operator for `f` should come from53    54    - `f` - a symbolic operator. It is important that not the symbolic expression itself is handled to this method but only55        the operator (which can be accessed via the command ``.operator()``56            57    - ``inner`` (default ``None``) -- for differentiable functions an inner function can be handed over. Then not an operator58        for f(x) but for f(inner) is returned. However ``inner`` has to be a linear function, i.e. of the form u*x + v for59        u,v in QQ. For discrete functions ``inner`` does not have any impact.60        61    - `k` (default 0) -- a rational number that has to be handed over if the symolic operator `f` depends on two variables (such as binomial(k,n) or bessel_I(k,x) ) because only operators for univariate functions can be returned and 62        therefore one variable has to be assigned with a certain value `k`63    64    OUTPUT:65    66    An element from the OreAlgebra `A`, that represents a differential/recurrence equation which annihilates f(x) or if67     ``inner`` is not ``None`` an element from `A` which annihilates f(inner).68    69    EXAMPLES::70    71        #discrete case72        sage: from ore_algebra import *73        sage: from ore_algebra.dfinite_symbolic import symbolic_database74        sage: A = OreAlgebra(QQ['n'],'Sn')75        sage: n = var('n')76        sage: f = harmonic_number(n).operator()77        sage: symbolic_database(A,f)78        (n + 2)*Sn^2 + (-2*n - 3)*Sn + n + 179        sage: g = binomial(5,n).operator()80        sage: symbolic_database(A,g,None,5)81        (n + 1)*Sn + n - 582        83        #differential case84        sage: B = OreAlgebra(QQ['x'],'Dx')85        sage: x = var('x')86        sage: f = sin(x).operator()87        sage: symbolic_database(B,f)88        Dx^2 + 189        sage: g = log(3*x+4).operator()90        sage: symbolic_database(B,g,3*x+4)91        (3*x + 4)*Dx^2 + 3*Dx92        sage: h = bessel_I(4,2*x+1).operator()93        sage: symbolic_database(B,h,2*x+1,4)94        (4*x^2 + 4*x + 1)*Dx^2 + (4*x + 2)*Dx - 16*x^2 - 16*x - 6895        96    """97    n = A.is_S()98    k = A(k)99    #sequences100    if n:101        Sn = A.gen()102        #factorial103        if isinstance(f,sage.functions.other.Function_factorial):104            return A(Sn - (n+1))105        #harmonic_number106        elif isinstance(f,sage.functions.log.Function_harmonic_number_generalized):107            return A( (n+2)*Sn**2 - (2*n+3)*Sn + (n+1) )108        #binomial109        elif isinstance(f,sage.functions.other.Function_binomial):110            #(k choose n) - k fixed, n variable111            if k in QQ:112                return A((n+1)*Sn - (k-n))113            #(a*n+b choose c*n+d) - a,b,c,d fixed, n variable114            else:115                k = k.constant_coefficient()116                f1 = prod(inner+i for i in range(1,inner[1]+1))117                f2 = prod(k+i for i in range(1,k[1]+1))118                f3 = prod(inner - k + i for i in range(1,inner[1]-k[1]+1))119            return A(f2*f3*Sn - f1)120        else:121            raise NotImplementedError122        123    #functions124    else:125        Dx = A.gen()126        if inner:127            x = A(inner)128            d = A(inner.derivative())129        else:130            x = A.base_ring().gen()131            d = 1 #x.derivative()132        133        #sin134        if isinstance(f,sage.functions.trig.Function_sin):135            return A(Dx**2 + d**2)136        #cos137        elif isinstance(f,sage.functions.trig.Function_cos):138            return A(Dx**2 + d**2)139        #tan140        elif isinstance(f,sage.functions.trig.Function_tan):141            raise TypeError("Tan is not D-finite")142        #arcsin143        elif isinstance(f,sage.functions.trig.Function_arcsin):144            return A((1-x**2)*Dx**2 - d*x*Dx)145        #arccos146        elif isinstance(f,sage.functions.trig.Function_arccos):147            return A((1-x**2)*Dx**2 - d*x*Dx)148        #arctan149        elif isinstance(f,sage.functions.trig.Function_arctan):150            return A((x**2+1)*Dx**2 + d*2*x*Dx)151        #sinh152        elif isinstance(f,sage.functions.hyperbolic.Function_sinh):153            return A(Dx**2 - d**2)154        #cosh155        elif isinstance(f,sage.functions.hyperbolic.Function_cosh):156            return A(Dx**2 - d**2)157        #arcsinh158        elif isinstance(f,sage.functions.hyperbolic.Function_arcsinh):159            return A((1+x**2)*Dx**2 + d*x*Dx)160        #arccosh161        elif isinstance(f,sage.functions.hyperbolic.Function_arccosh):162            raise TypeError("ArcCosh is not D-finite")163        #arctanh164        elif isinstance(f,sage.functions.hyperbolic.Function_arctanh):165            return A((1-x**2)*Dx**2 - 2*d*x*Dx)166        #exp167        elif isinstance(f,sage.functions.log.Function_exp):168            return A(Dx - d)169        #log170        elif isinstance(f,sage.functions.log.Function_log1):171            return A(x*Dx**2 + d*Dx)172        #sqrt173        elif f == pow:174            return A(-2*x*Dx + d)175        #airy_ai176        elif isinstance(f,sage.functions.airy.FunctionAiryAiSimple):177            return A(Dx**2 - d**2*x)178        #airy_ai_prime179        elif isinstance(f,sage.functions.airy.FunctionAiryAiPrime):180            return A(x*Dx**2 - d*Dx - d**2*x**2)181        #airy_bi182        elif isinstance(f,sage.functions.airy.FunctionAiryBiSimple):183            return A(Dx**2 - d**2*x)184        #airy_bi_prime185        elif isinstance(f,sage.functions.airy.FunctionAiryBiPrime):186            return A(x*Dx**2 - d*Dx - (d*x)**2)187        #arccsc188        elif isinstance(f,sage.functions.trig.Function_arccsc):189            return A(x*(1-x**2)*Dx**2 - (2*x**2-1)*d*Dx)190        #arccsch191        elif isinstance(f,sage.functions.hyperbolic.Function_arccsch):192            return A(x*(x**2+1)*Dx**2 + (2*x**2+1)*d*Dx)193        #arcsec194        elif isinstance(f,sage.functions.trig.Function_arcsec):195            return A(x*(1-x**2)*Dx**2 - (2*x**2-1)*d*Dx)196        #bessel_I197        elif isinstance(f,sage.functions.bessel.Function_Bessel_I):198            return A( x**2*Dx**2 + d*x*Dx - d**2*(x**2 + k**2) )199        #bessel_J200        elif isinstance(f,sage.functions.bessel.Function_Bessel_J):201            return A( x**2*Dx**2 + d*x*Dx + d**2*(x**2 - k**2) )202        #bessel_Y203        elif isinstance(f,sage.functions.bessel.Function_Bessel_Y):204            return A( x**2*Dx**2 + d*x*Dx + d**2*(x**2 - k**2) )205        #bessel_K206        elif isinstance(f,sage.functions.bessel.Function_Bessel_K):207            return A( x**2*Dx**2 + d*x*Dx - d**2*(x**2 + k**2) )208        #sherical_bessel_Jzz209        elif isinstance(f,sage.functions.bessel.SphericalBesselJ):210            return A( x**2*Dx**2 + 2*d*x*Dx + d**2*(x**2 - k*(k+1)) )211        #erf (error function)212        elif isinstance(f,sage.functions.error.Function_erf):213            return A( Dx**2 + 2*d*x*Dx )214        #erfc (complementary error function)215        elif isinstance(f,sage.functions.error.Function_erfc):216            return A( Dx**2 + 2*d*x*Dx )217        #erfi (imaginary error function)218        elif isinstance(f,sage.functions.error.Function_erfi):219            return A( Dx**2 - 2*d*x*Dx )220        #dilog221        elif isinstance(f,sage.functions.log.Function_dilog):222            return A( x*(1-x)*Dx**3 + d*(2-3*x)*Dx**2 - d**2*Dx )223        #exp_integral_e224        elif isinstance(f,sage.functions.exp_integral.Function_exp_integral_e):225            return A( x*Dx**2 + d*(x-k+2)*Dx + d**2*(1-k) )226        #exp_integral_ei (Ei)227        elif isinstance(f, sage.functions.exp_integral.Function_exp_integral):228            return A( x*Dx**3 + 2*d*Dx**2 - d**2*x*Dx )229        #sin_integral230        elif isinstance(f,sage.functions.exp_integral.Function_sin_integral):231            return A( x*Dx**3 + 2*d*Dx**2 + d**2*x*Dx )232        #cos_integral233        elif isinstance(f,sage.functions.exp_integral.Function_cos_integral):234            return A( x*Dx**3 + 2*d*Dx**2 + d**2*x*Dx )235        #sinh_integral236        elif isinstance(f,sage.functions.exp_integral.Function_sinh_integral):237            return A ( x*Dx**3 + 2*d*Dx**2 - d**2*x*Dx )238        #cosh_integral239        elif isinstance(f,sage.functions.exp_integral.Function_sinh_integral):240            return A( x*Dx**3 + 2*d*Dx**2 - d**2*x*Dx )241        #elliptic_ec (complete elliptic integral of second kind) - problems with computing the derivative242        elif isinstance(f,sage.functions.special.EllipticEC):243            return A( (1-x)*x*Dx**2 + d*(1-x)*Dx + d**2*QQ(1./4) )244        #elliptic_kc (complete elliptic integral of first kind) - problems with computing the derivative245        elif isinstance(f,sage.functions.special.EllipticKC):246            return A( (1-x)*x*Dx**2 + d*(1-2*x)*Dx - d**2*QQ(1./4) )247        else:...

dsp.py

Source:dsp.py

1import numpy as np2from scipy import signal 3import emd4from scipy import stats5# helper function to flatten lists6def flatten(input):7    new_list = []8    for i in input:9        for j in i:10            new_list.append(j)11    return new_list12def axes_to_list(axes_data: dict) -> list:13    """helper method to convert a dict of sensor axis graphs to a 2d array for graphing14    """15    axes_tuples = axes_data.items()16    axes_list = [axes[1].tolist() for axes in axes_tuples]17    return axes_list18# retrieve the next imf of the input signal. Use this on the prior computed imf or base signal19def get_next_imf(x, zoom=None, sd_thresh=0.1):20    proto_imf = x.copy()  # Take a copy of the input so we don't overwrite anything21    continue_sift = True  # Define a flag indicating whether we should continue sifting22    niters = 0            # An iteration counter23    if zoom is None:24        zoom = (0, x.shape[0])25    # Main loop - we don't know how many iterations we'll need so we use a ``while`` loop26    while continue_sift:27        niters += 1  # Increment the counter28        # Compute upper and lower envelopes29        upper_env = emd.utils.interp_envelope(proto_imf, mode='upper')30        lower_env = emd.utils.interp_envelope(proto_imf, mode='lower')31        # Compute average envelope32        avg_env = (upper_env+lower_env) / 233        # Should we stop sifting?34        stop, val = emd.sift.sd_stop(proto_imf-avg_env, proto_imf, sd=sd_thresh)35        # Remove envelope from proto IMF36        proto_imf = proto_imf - avg_env37        # and finally, stop if we're stopping38        if stop:39            continue_sift = False40    # Return extracted IMF41    return proto_imf42def frequency_domain_graph_y(sampling_freq, lenX):43    N = lenX44    T = 1 / sampling_freq45    freq_space = np.linspace(0.0, 1.0/(2.0*T), N//2)46    return freq_space.tolist()47def generate_features(draw_graphs, raw_data, axes, sampling_freq, **kwargs):48    # features is a 1D array, reshape so we have a matrix with one raw per axis49    raw_data = raw_data.reshape(int(len(raw_data) / len(axes)), len(axes))50    # results are the first 3 imfs and their residuals51    # storing as a dict in [imf][axis] order to match format expected by dsp server graphs52    result_functions = {'imf0' : {}, 'imf1' : {}, 'imf2' : {}, 'res0' : {}, 'res1' : {}, 'res2' : {}}53    # split out the data from all axes54    for ax in range(0, len(axes)):55        X = []56        for ix in range(0, raw_data.shape[0]):57            X.append(raw_data[ix][ax])58        # X now contains only the current axis59        fx = np.array(X)60        imf = []61        res = []62        # get first imfs and residuals63        result_functions['imf0'][axes[ax]] = get_next_imf(fx)64        result_functions['res0'][axes[ax]] = fx - result_functions['imf0'][axes[ax]]65        result_functions['imf1'][axes[ax]] = get_next_imf(result_functions['res0'][axes[ax]])66        result_functions['res1'][axes[ax]] = result_functions['res0'][axes[ax]] - result_functions['imf1'][axes[ax]]67        result_functions['imf2'][axes[ax]] = get_next_imf(result_functions['res1'][axes[ax]])68        result_functions['res2'][axes[ax]] = result_functions['res1'][axes[ax]] - result_functions['imf2'][axes[ax]]69    # compute statistical features for imfs and residuals70    # features is a fixed size 1x48 dimension list matching order of Sensorless Diagnosis dataset71    features = []72    # mean73    for ax in range(0, len(axes)):74        features.append(np.mean(result_functions['imf0'][axes[ax]]))75        features.append(np.mean(result_functions['imf1'][axes[ax]]))76        features.append(np.mean(result_functions['imf2'][axes[ax]]))77    for ax in range(0, len(axes)):78        features.append(np.mean(result_functions['res0'][axes[ax]]))79        features.append(np.mean(result_functions['res1'][axes[ax]]))80        features.append(np.mean(result_functions['res2'][axes[ax]]))81    # stddev82    for ax in range(0, len(axes)):83        features.append(np.std(result_functions['imf0'][axes[ax]]))84        features.append(np.std(result_functions['imf1'][axes[ax]]))85        features.append(np.std(result_functions['imf2'][axes[ax]]))86    for ax in range(0, len(axes)):87        features.append(np.std(result_functions['res0'][axes[ax]]))88        features.append(np.std(result_functions['res1'][axes[ax]]))89        features.append(np.std(result_functions['res2'][axes[ax]]))90    # skew91    for ax in range(0, len(axes)):92        features.append(stats.skew(result_functions['imf0'][axes[ax]]))93        features.append(stats.skew(result_functions['imf1'][axes[ax]]))94        features.append(stats.skew(result_functions['imf2'][axes[ax]]))95    for ax in range(0, len(axes)):96        features.append(stats.skew(result_functions['res0'][axes[ax]]))97        features.append(stats.skew(result_functions['res1'][axes[ax]]))98        features.append(stats.skew(result_functions['res2'][axes[ax]]))99    # kurtosis100    for ax in range(0, len(axes)):101        features.append(stats.kurtosis(result_functions['imf0'][axes[ax]]))102        features.append(stats.kurtosis(result_functions['imf1'][axes[ax]]))103        features.append(stats.kurtosis(result_functions['imf2'][axes[ax]]))104    for ax in range(0, len(axes)):105        features.append(stats.kurtosis(result_functions['res0'][axes[ax]]))106        features.append(stats.kurtosis(result_functions['res1'][axes[ax]]))107        features.append(stats.kurtosis(result_functions['res2'][axes[ax]]))108    # conditionally provide graphs109    graphs = []110    if (draw_graphs):111        graphs.append({112            'name': 'IMF0',113            'X': axes_to_list(result_functions['imf0']),114            'y': np.linspace(0.0, raw_data.shape[0] * (1 / sampling_freq) * 1000, raw_data.shape[0] + 1).tolist(),115            'suggestedYMin': min(flatten(result_functions['imf0'].values())),116            'suggestedYMax': max(flatten(result_functions['imf0'].values())),117        })118        graphs.append({119            'name': 'RES0',120            'X': axes_to_list(result_functions['res0']),121            'y': np.linspace(0.0, raw_data.shape[0] * (1 / sampling_freq) * 1000, raw_data.shape[0] + 1).tolist(),122            'suggestedYMin': min(flatten(result_functions['res0'].values())),123            'suggestedYMax': max(flatten(result_functions['res0'].values()))124        })125        graphs.append({126            'name': 'IMF1',127            'X': axes_to_list(result_functions['imf1']),128            'y': np.linspace(0.0, raw_data.shape[0] * (1 / sampling_freq) * 1000, raw_data.shape[0] + 1).tolist(),129            'suggestedYMin': min(flatten(result_functions['imf1'].values())),130            'suggestedYMax': max(flatten(result_functions['imf1'].values()))131        })132        graphs.append({133            'name': 'RES1',134            'X': axes_to_list(result_functions['res1']),135            'y': np.linspace(0.0, raw_data.shape[0] * (1 / sampling_freq) * 1000, raw_data.shape[0] + 1).tolist(),136            'suggestedYMin': min(flatten(result_functions['res1'].values())),137            'suggestedYMax': max(flatten(result_functions['res1'].values()))138        })139        graphs.append({140            'name': 'IMF2',141            'X': axes_to_list(result_functions['imf2']),142            'y': np.linspace(0.0, raw_data.shape[0] * (1 / sampling_freq) * 1000, raw_data.shape[0] + 1).tolist(),143            'suggestedYMin': min(flatten(result_functions['imf2'].values())),144            'suggestedYMax': max(flatten(result_functions['imf2'].values()))145        })146        graphs.append({147            'name': 'RES2',148            'X': axes_to_list(result_functions['res2']),149            'y': np.linspace(0.0, raw_data.shape[0] * (1 / sampling_freq) * 1000, raw_data.shape[0] + 1).tolist(),150            'suggestedYMin': min(flatten(result_functions['res2'].values())),151            'suggestedYMax': max(flatten(result_functions['res2'].values()))152        })153    return {154            'features': features,155            'graphs': graphs...

build_glob.py

Source:build_glob.py

1#! /usr/bin/env python2###3#4#       build_glob.py : Build the global_functions.h and global_functions.c5#                       files which are required to implement the user6#                       interface to global variables now that thread specific7#                       data (TSD) is used to emulate global state.8#9#       See Copyright for the status of this software.10#       Gary.Pennington@sun.com11###12import os, string13class globvar:14    def __init__(self, type, name):15        self.type=type16        self.name=name17def striplinesep(line):18    while line and line[-1] in ('\r','\n'):19        line = line[:-1]20    return line21def writeline(file, line=None):22    if line:23        file.write(line)24    file.write("\n")25if __name__ == "__main__":26    globals={}27    global_data=open("global.data").readlines()28    global_code=open("globals.c").readlines()29    global_hdr=open("include/libxml/globals.h").readlines()30    global_functions_hdr=open("include/libxml/globals.h", "w+")31    global_functions_impl=open("globals.c", "w+")32    #33    # Rebuild the beginning of the file up to the34    # Automatically generated string35    # 36    for line in global_hdr:37        line = striplinesep(line)38        if line == " * Automatically generated by build_glob.py.":39	    break40	writeline(global_functions_hdr, line)41    writeline(global_functions_hdr, " * Automatically generated by build_glob.py.")42    writeline(global_functions_hdr, " * Do not modify the previous line.")43    writeline(global_functions_hdr, " */")44    writeline(global_functions_hdr)45    for line in global_code:46        line = striplinesep(line)47        if line == " * Automatically generated by build_glob.py.":48	    break49	writeline(global_functions_impl, line)50    writeline(global_functions_impl, " * Automatically generated by build_glob.py.")51    writeline(global_functions_impl, " * Do not modify the previous line.")52    writeline(global_functions_impl, " */")53    writeline(global_functions_impl)54    # Now process the data and write it to the appropriate output file55    for line in global_data:56        if line[0]=='#':57            continue58        line = striplinesep(line)59        fields = string.split(line, ",")60        # Update the header file61        writeline(global_functions_hdr)62        global_functions_hdr.write("extern "+fields[0]+" *")63        if fields[2]:64            global_functions_hdr.write("(*")65        global_functions_hdr.write("__"+fields[1]+"(void)")66        if fields[2]:67            global_functions_hdr.write(")"+fields[2])68        writeline(global_functions_hdr,";")69        writeline(global_functions_hdr, "#ifdef LIBXML_THREAD_ENABLED")70        writeline(global_functions_hdr,"#define "+fields[1]+" \\")71        writeline(global_functions_hdr,"(*(__"+fields[1]+"()))")72        writeline(global_functions_hdr,"#else")73        if fields[2]:74            writeline(global_functions_hdr,"LIBXML_DLL_IMPORT extern "+fields[0]+" "+fields[1]+fields[2]+";")75        else:76            writeline(global_functions_hdr,"LIBXML_DLL_IMPORT extern "+fields[0]+" "+fields[1]+";")77        writeline(global_functions_hdr,"#endif")78        # set/get for per-thread global defaults79        if fields[3]:80            writeline(global_functions_hdr,fields[0]+" "+fields[1][:3]+"ThrDef"+fields[1][3:]+"("+fields[0]+" v);")81        # Update the implementation file82        writeline(global_functions_impl)83#        writeline(global_functions_impl, "extern "+fields[0]+" "+fields[1]+";")84        writeline(global_functions_impl, "#undef\t"+fields[1])85        writeline(global_functions_impl, fields[0]+" *")86        if fields[2]:87            global_functions_impl.write("(*")88        global_functions_impl.write("__"+fields[1]+"(void)")89        if fields[2]:90            writeline(global_functions_impl, ")[]")91        writeline(global_functions_impl, " {")92        writeline(global_functions_impl, "    if (IS_MAIN_THREAD)")93        writeline(global_functions_impl, "\treturn (&"+fields[1]+");")94        writeline(global_functions_impl, "    else")95        writeline(global_functions_impl, "\treturn (&xmlGetGlobalState()->"+fields[1]+");")96        writeline(global_functions_impl, "}")97        # set/get for per-thread global defaults98        if fields[3]:99            writeline(global_functions_impl,fields[0]+" "+fields[1][:3]+"ThrDef"+fields[1][3:]+"("+fields[0]+" v) {")100            writeline(global_functions_impl,"    "+fields[0]+" ret;");101            writeline(global_functions_impl,"    xmlMutexLock(xmlThrDefMutex);")102            writeline(global_functions_impl,"    ret = "+fields[1][:3]+fields[1][3:]+"ThrDef;")103            writeline(global_functions_impl,"    "+fields[1][:3]+fields[1][3:]+"ThrDef = v;")104            writeline(global_functions_impl,"    xmlMutexUnlock(xmlThrDefMutex);")105            writeline(global_functions_impl,"    return ret;")106            writeline(global_functions_impl,"}")107    # Terminate the header file with appropriate boilerplate108    writeline(global_functions_hdr)109    writeline(global_functions_hdr, "#ifdef __cplusplus")110    writeline(global_functions_hdr, "}")111    writeline(global_functions_hdr, "#endif")112    writeline(global_functions_hdr)...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.