PCA 返回所有 0

embeddings := mat.NewDense(1, 1536, []float64{ 0.0051681744, 0.017187592, -0.018685209, -0.01855924, -0.04725188, -0.030288232, 0.027670903, 0.0036775568, 0.011253114, 0.0064068567, -0.0016953152, 0.015801948, -0.0013007914, -0.007872981, 0.059904635, 0.050247114, -0.027516942, 0.009923455, -0.04039364, 0.050051164, -0.00042557836, 0.030232247, -0.01368849, 0.032919556, 0.017299563, 0.016795693, -0.0017548, 0.02043476, 0.04078554, -0.03770633, -0.026117302, -0.049995176, 0.024185797, -0.055257827, -0.03224773, 0.04235314, 0.06466342, 0.014724224, -0.015647987, -0.041401383, 0.022198306, 0.007341117, 0.04495647, 0.007106677, -0.024087822, 0.05240256, -0.020084849, -0.03224773, 0.01622184, 0.046412095, 0.0237799, -0.018867161, -0.005353627, 0.04397672, -0.006172417, 0.0073271208, -0.014948166, 0.072669365, -0.0054865927, -0.037678335, 0.016081875, 0.034263212, 0.0071101766, -0.004748282, -0.026677158, 0.028944576, -0.038546115, 0.023206048, -0.0051436806, 0.011903947, 0.025515456, -0.014612253, -0.01111315, 0.0038000254, 0.0006403358, -0.023262033, -0.016291821, -0.0043703793, 0.020714687, -0.004202422, 0.040253676, -0.0028360228, -0.0253475, -0.020168828, -0.048203636, 0.020658702, -0.07558062, 0.02795083, -0.01707562, 0.008299871, -0.018335298, -0.012064906, -0.022590207, -0.0070751854, -0.015885925, 0.0055530756, -0.0327516, 0.0041149445, -0.0058504995, -0.038462136, 0.047111917, -0.012036913, -0.020056857, 0.002643572, -0.031547908, 0.011134145, 0.011952935, -0.0024266276, -0.046803996, -0.021316532, -0.08532212, 0.007229146, 0.0062354007, 0.020602716, 0.001294668, 0.004223417, 0.06886234, -0.014514278, 0.021722429, -0.022646192, 0.025291514, -0.0028272748, 0.031827837, -0.056909405, 0.0036705586, -0.041009482, 0.0056370543, -0.03555088, -0.037958264, 0.0154660335, 0.02124655, -0.048567545, -0.0111761335, -0.009342604, -0.05021912, -0.007124173, -0.04585224, 0.041233424, -0.030512175, 0.04268905, -0.015410048, -0.02975637, -0.0033188988, -0.011617021, -0.02464768, -0.018321302, -0.03227572, -0.006140925, -0.024269776, 0.0187132, -0.035578877, 0.034795076, -0.06634299, 0.03401128, 0.027069058, -0.013898435, 0.02620128, -0.024451729, -0.044424605, 0.0047342856, -0.021778414, -0.057077363, -0.0049932194, 0.013464547, -0.033479415, -0.0460202, 0.03790228, 0.024353754, -0.0436688, 0.023276031, -0.013114637, -0.041009482, -0.049267363, -0.0054620993, -0.008705767, 0.042129196, 0.021232555,