def zscore_normalize_features(X): """ X (ndarray): Shape (m,n) input data, m ex...
X = zscore_normalize_features(X) model_w,model_b = run_gradient_descent_feng(X, y, iterations=1000000, alpha = 1e-1) plt.scatter(x, y, marker='x', c='r', label="Actual Value"); plt.title("Normalized x x**2, x**3 feature") plt.plot(x,X@model_w + model_b, label="P...
...mask=noArray() ) C++: void normalize(const SparseMat& src, SparseMat& dst, double alpha, int normType) Python...比如归一化到(min,max)范围内: NORM_INF: 归一化数组的(切比雪夫距离)L∞范数(绝对值的最大值) NORM_L1 : 归一化数组的(曼哈顿距离)L1-范数(和的绝对值) NORM_L2...
z[np.where(np.isnan(z))] =0.0 # Sort the points by density, so that the densest points are plotted last ifsort : idx = z.argsort() x, y, z = x[idx], y[idx], z[idx] ax.scatter( x, y, c=z, **kwargs ) ax.grid(linestyle='--',linewidth=0.5) norm = Normalize(vmin ...
(projection='3d') X,Y,Z=[],[],[] for i in Xaxis: for j in Yaxis: X.append(i) Y.append(j) Z.append(US.volfit(j, i)) norm = plt.Normalize(np.min(Z), np.max(Z)) colors = cm.jet(norm(Z)) plt.title('Fitted Implied vol surface for SPX') plt.xlabel('Strike') plt...
Z Score: cdl_z# Get all candle patterns (This is the default behaviour) df = df.ta.cdl_pattern(name="all") # Get only one pattern df = df.ta.cdl_pattern(name="doji") # Get some patterns df = df.ta.cdl_pattern(name=["doji", "inside"])Cycles...
Requires the DataFrame index to be a DatetimeIndex. See help(ta.vwap). Volume Weighted Moving Average (vwma): Fixed bug in DataFrame Extension call. See help(ta.vwma). Z Score (zscore): Changed return column name from Z_length to ZS_length. See help(ta.zscore)....
1.1 导入库 In [2]: 代码语言:javascript 复制 代码语言:javascript 复制 importpandasaspd from pyecharts.chartsimport*from pyecharts.chartsimportBar from pyecharts.chartsimportMap from pyecharts.chartsimportPie from pyecharts.chartsimportLine
LOGGER.warning(exception)continue# normalize the featurefeatures = mstats.zscore(features_file, axis=1, ddof=1) features = np.transpose(features) clusters = model.predic_clusters(features)# save resultsfile_out, _ = os.path.splitext(file) ...
示例1: test_zscore_axis ▲点赞 9▼ # 需要导入模块: from scipy import stats [as 别名]# 或者: from scipy.stats importzscore[as 别名]deftest_zscore_axis(self):# Test use of 'axis' keyword inzscore.x = np.array([[0.0,0.0,1.0,1.0], ...