Python 3.x 如何使用matplotlib plt.imshow更改热图的y记号标签？
我正在尝试使用matplotlib plt.imshow为我的热图指定y轴的刻度位置和频率 我在下面有一个示例代码：Python 3.x 如何使用matplotlib plt.imshow更改热图的y记号标签？,python-3.x,matplotlib,heatmap,Python 3.x,Matplotlib,Heatmap,我正在尝试使用matplotlib plt.imshow为我的热图指定y轴的刻度位置和频率 我在下面有一个示例代码： fig, ax = plt.subplots(1,1) ax.imshow(dFF_snips, cmap= 'hot', interpolation = 'none', aspect = 'auto') ax.set_yticks(np.arange(0.5, len(dFF_snips),1)) ax.set_yticklabels(np.arange(1, len(dFF
fig, ax = plt.subplots(1,1)
ax.imshow(dFF_snips, cmap= 'hot', interpolation = 'none', aspect = 'auto')
ax.set_yticks(np.arange(0.5, len(dFF_snips),1))
ax.set_yticklabels(np.arange(1, len(dFF_snips),1))
dFF_snipdFF_snipprint (dFF_snips)
[array([-1.8822885 , -1.8549905 , -1.8296311 , -1.8080201 , -1.7912312 ,
-1.7804587 , -1.7767344 , -1.780715 , -1.7938154 , -1.8149264 ,
-1.8465863 , -1.8899457 , -1.9409375 , -1.9931413 , -2.0453465 ,
-2.0977397 , -2.15121 , -2.2029345 , -2.2531028 , -2.3032935 ,
-2.3565419 , -2.4161592 , -2.479967 , -2.543494 , -2.5983462 ,
-2.6451566 , -2.6862512 , -2.7176433 , -2.7372882 , -2.747169 ,
-2.750199 , -2.7498198 , -2.7493978 , -2.7578523 , -2.7844353 ,
-2.8315635 , -2.9044938 , -3.0043793 , -3.1294305 , -3.277962 ,
-3.4421551 , -3.6112301 , -3.7806895 , -3.9461625 , -4.0972414 ,
-4.2289515 , -4.3385363 , -4.424823 , -4.4883513 , -4.532503 ,
-4.5646443 , -4.58944 , -4.6088505 , -4.6220293 , -4.6342707 ,
-4.6473126 , -4.661791 , -4.6782117 , -4.696537 , -4.7196736 ,
-4.7511196 , -4.7927513 , -4.8435016 , -4.89862 , -4.9564075 ,
-5.0158553 , -5.0760636 , -5.1353955 , -5.1895895 , -5.238624 ,
-5.2806144 , -5.3163066 , -5.3447247 , -5.36642 , -5.3814077 ,
-5.3881364 , -5.3849244 , -5.3705726 , -5.3448462 , -5.308451 ,
-5.2625375 , -5.207037 , -5.1442537 , -5.080445 , -5.0244327 ,
-4.984356 , -4.9615374 , -4.954831 , -4.9617405 , -4.9791384 ,
-5.0037413 , -5.0323377 , -5.059078 , -5.0806446 , -5.1011295 ,
-5.122504 , -5.146725 , -5.175042 , -5.209402 , -5.255945 ,
-5.314746 , -5.379836 , -5.44777 , -5.516466 , -5.583969 ,
-5.648302 , -5.7048216 , -5.752765 , -5.7887063 , -5.811991 ,
-5.8275847 , -5.8386745 , -5.8451476 , -5.8462815 , -5.8407607 ,
-5.8266883 , -5.8025455 , -5.768773 , -5.72489 , -5.6673093 ,
-5.5983315 , -5.5259886 , -5.458761 , -5.403886 , -5.36478 ,
-5.3438416 , -5.342907 , -5.364466 , -5.404285 , -5.4572835 ,
-5.517151 , -5.5742135 , -5.621361 , -5.6528864 , -5.6692514 ,
-5.672536 , -5.6654186 , -5.6482277 , -5.6235633 , -5.599008 ,
-5.580639 , -5.5739145 , -5.5779624 , -5.589749 , -5.606258 ,
-5.624993 , -5.6418123 , -5.651057 , -5.6521254 , -5.643853 ,
-5.627396 , -5.6036816 , -5.5739474 , -5.54002 , -5.5041423 ,
-5.471208 , -5.445212 , -5.4309144 , -5.4306445 , -5.4438753 ,
-5.4677343 , -5.498519 , -5.5353036 , -5.57779 , -5.6167226 ,
-5.6415677 , -5.652169 , -5.6503644 , -5.6396747 , -5.62374 ,
-5.6030574 , -5.5774198 , -5.5563984 , -5.5467024 , -5.5476923 ,
-5.5576925 , -5.575279 , -5.602696 , -5.63887 , -5.679612 ,
-5.717645 , -5.750725 , -5.7775197 , -5.797683 , -5.8123 ,
-5.8214726 , -5.8264694 , -5.82957 , -5.8367686 , -5.8501425 ,
-5.8717527 , -5.904425 , -5.9460497 , -5.994463 , -6.043525 ,
-6.0860786 , -6.113253 , -6.117045 , -6.0944533 , -6.0426073 ,
-5.9613705 , -5.853579 , -5.723713 , -5.577989 , -5.425921 ,
-5.2748075 , -5.133173 , -5.0055504 , -4.893709 , -4.8013916 ,
-4.729972 , -4.6693077 , -4.613176 , -4.5573344 , -4.4992185 ,
-4.4381495 , -4.374554 , -4.305001 , -4.221483 , -4.1239524 ,
-4.0080414 , -3.8665266 , -3.6785667 , -3.435253 , -3.1269002 ,
-2.7396197 , -2.2662575 , -1.7103218 , -1.0797501 , -0.38504073,
0.35231286, 1.1085372 , 1.8604275 , 2.5868106 , 3.2650638 ,
3.88009 , 4.427451 , 4.9026966 , 5.310102 , 5.659054 ,
5.959997 , 6.22682 , 6.480126 , 6.7403393 , 7.0139074 ,
7.307172 , 7.6194806 , 7.9485364 , 8.29129 , 8.642674 ,
8.998259 , 9.352926 , 9.700551 , 10.040269 , 10.36643 ,
10.67472 , 10.964947 , 11.2369175 , 11.491209 , 11.728639 ,
11.951131 , 12.161948 , 12.36541 , 12.567936 , 12.771758 ,
12.978437 , 13.188399 , 13.404184 , 13.626745 , 13.853698 ,
14.082246 , 14.31026 , 14.528476 , 14.727809 , 14.900687 ,
15.04402 , 15.156785 , 15.238539 , 15.289807 , 15.313582 ,
15.31713 , 15.304714 , 15.280266 , 15.253396 , 15.230518 ,
15.2263775 , 15.250487 , 15.304828 , 15.393541 , 15.515712 ,
15.665333 , 15.832893 , 16.00457 , 16.16947 , 16.310741 ,
16.4211 , 16.498234 , 16.541042 , 16.551107 , 16.532488 ,
16.48923 , 16.435703 , 16.389143 , 16.365812 , 16.367193 ,
16.396809 , 16.45823 , 16.546036 , 16.654066 , 16.765757 ,
16.868177 , 16.948336 , 17.008982 , 17.0496 , 17.063437 ,
17.050173 , 17.011639 , 16.94833 , 16.86501 , 16.769604 ,
16.666597 , 16.55239 , 16.431707 , 16.311302 , 16.192154 ,
16.071764 , 15.948116 , 15.819756 , 15.679544 , 15.523486 ,
15.347094 , 15.156804 , 14.95653 , 14.751297 , 14.546366 ,
14.34639 , 14.158085 , 13.986786 , 13.839194 , 13.715297 ,
13.609531 , 13.519229 , 13.4388895 , 13.362569 , 13.286026 ,
13.202943 , 13.1025715 , 12.980316 , 12.842534 , 12.69255 ,
12.53745 , 12.386539 , 12.245493 , 12.122852 , 12.022797 ,
11.948581 , 11.900274 , 11.871156 , 11.856454 , 11.848497 ,
11.840949 , 11.829887 , 11.810318 , 11.782139 , 11.745777 ,
11.701197 , 11.652182 , 11.606136 , 11.566988 , 11.545708 ,
11.550325 , 11.581249 , 11.63827 , 11.719916 , 11.819736 ,
11.932257 , 12.054184 , 12.182194 , 12.313297 , 12.445502 ,
12.580897 , 12.724497 , 12.875883 , 13.036144 , 13.204837 ,
13.381885 , 13.571632 , 13.775131 , 13.997929 , 14.24062 ,
14.498061 , 14.769052 , 15.05298 , 15.349015 , 15.654352 ,
15.96401 , 16.27362 , 16.577772 , 16.861462 , 17.122467 ,
17.346304 , 17.518572 , 17.634878 , 17.694998 , 17.69741 ],
dtype=float32), array([14.985913 , 15.0813265, 15.201618 , 15.339931 , 15.482807 ,
15.622314 , 15.745328 , 15.845537 , 15.918395 , 15.9597025,
15.970337 , 15.947713 , 15.892259 , 15.816352 , 15.728424 ,
15.637668 , 15.560816 , 15.501743 , 15.459493 , 15.435576 ,
15.427354 , 15.428045 , 15.4214325, 15.392995 , 15.336227 ,
15.245654 , 15.122533 , 14.969285 , 14.797668 , 14.618191 ,
14.441152 , 14.280328 , 14.139093 , 14.0161085, 13.906187 ,
13.803871 , 13.704677 , 13.60463 , 13.495758 , 13.374351 ,
13.240541 , 13.095286 , 12.940205 , 12.779708 , 12.619321 ,
12.462998 , 12.321359 , 12.195814 , 12.088715 , 12.001717 ,
11.93776 , 11.897891 , 11.875162 , 11.860579 , 11.854521 ,
11.849422 , 11.838185 , 11.81166 , 11.767702 , 11.707357 ,
11.63462 , 11.555485 , 11.47481 , 11.405646 , 11.3603325,
11.349787 , 11.386207 , 11.469798 , 11.596573 , 11.758874 ,
11.950013 , 12.1582575, 12.373628 , 12.59353 , 12.812452 ,
13.027382 , 13.238621 , 13.446201 , 13.648696 , 13.844095 ,
14.030461 , 14.206606 , 14.369981 , 14.51379 , 14.634885 ,
14.732284 , 14.803246 , 14.850707 , 14.876606 , 14.882255 ,
14.869549 , 14.843523 , 14.812805 , 14.780341 , 14.750411 ,
14.726697 , 14.708117 , 14.692233 , 14.676164 , 14.656219 ,
14.62422 , 14.574705 , 14.508799 , 14.428904 , 14.338353 ,
14.241846 , 14.147425 , 14.056105 , 13.969798 , 13.888433 ,
13.809785 , 13.7317505, 13.647875 , 13.554984 , 13.459616 ,
13.367651 , 13.285801 , 13.220657 , 13.178888 , 13.16811 ,
13.188882 , 13.240819 , 13.322815 , 13.431261 , 13.553786 ,
13.677812 , 13.796276 , 13.909011 , 14.012255 , 14.100053 ,
14.173452 , 14.236986 , 14.291727 , 14.335081 , 14.364861 ,
14.378245 , 14.3722725, 14.340262 , 14.273232 , 14.167559 ,
14.023277 , 13.839618 , 13.621736 , 13.374201 , 13.106571 ,
12.829431 , 12.557793 , 12.303619 , 12.074016 , 11.874444 ,
11.711173 , 11.5863495, 11.495105 , 11.428545 , 11.382363 ,
11.346231 , 11.316199 , 11.289666 , 11.261737 , 11.225497 ,
11.176408 , 11.108545 , 11.014187 , 10.8888645, 10.731119 ,
10.541812 , 10.3226 , 10.077124 , 9.811858 , 9.543706 ,
9.282138 , 9.026755 , 8.78138 , 8.547419 , 8.322434 ,
8.101543 , 7.8811502, 7.658479 , 7.4329863, 7.203424 ,
6.967441 , 6.726277 , 6.48304 , 6.2404237, 5.999122 ,
5.763114 , 5.5331116, 5.308862 , 5.08791 , 4.866709 ,
4.6443095, 4.4183106, 4.1867266, 3.9511278, 3.714395 ,
3.484849 , 3.2739005, 3.0899024, 2.9358234, 2.8153837,
2.727375 , 2.6660771, 2.6191638, 2.5712247, 2.5117695,
2.4352205, 2.3356235, 2.2147193, 2.0792274, 1.9332346,
1.786934 , 1.6477907, 1.5201409, 1.4157685, 1.335785 ,
1.2748284, 1.2278844, 1.1929066, 1.1664782, 1.1425498,
1.119881 , 1.0991426, 1.0819967, 1.0758952, 1.0952543,
1.153253 , 1.2662036, 1.4550017, 1.7340628, 2.107755 ,
2.5685928, 3.1026032, 3.6955702, 4.318763 , 4.9410887,
5.533783 , 6.070261 , 6.528496 , 6.8935337, 7.161574 ,
7.333489 , 7.4176044, 7.427965 , 7.379712 , 7.2934084,
7.191278 , 7.0916743, 7.008934 , 6.9526563, 6.9229813,
6.916075 , 6.9264 , 6.9488316, 6.9789352, 7.0105314,
7.0356383, 7.0489025, 7.0510798, 7.044831 , 7.0329638,
7.020595 , 7.0151157, 7.0165215, 7.0248165, 7.042253 ,
7.071152 , 7.1211853, 7.199633 , 7.3065066, 7.4405656,
7.5979733, 7.773173 , 7.9608345, 8.157463 , 8.361792 ,
8.57324 , 8.790566 , 9.011866 , 9.235196 , 9.454955 ,
9.658838 , 9.834555 , 9.972411 , 10.064418 , 10.109178 ,
10.105817 , 10.05925 , 9.97626 , 9.865885 , 9.746819 ,
9.631683 , 9.533817 , 9.45777 , 9.404203 , 9.372148 ,
9.363664 , 9.377956 , 9.412059 , 9.457245 , 9.508495 ,
9.563546 , 9.620097 , 9.673766 , 9.71818 , 9.752294 ,
9.775398 , 9.7845125, 9.78442 , 9.776973 , 9.763239 ,
9.744236 , 9.721276 , 9.696176 , 9.674806 , 9.662116 ,
9.663079 , 9.684327 , 9.726172 , 9.786347 , 9.859422 ,
9.939408 , 10.018817 , 10.077755 , 10.101078 , 10.084569 ,
10.019482 , 9.903698 , 9.7449465, 9.552645 , 9.336995 ,
9.121732 , 8.917354 , 8.732036 , 8.578597 , 8.459781 ,
8.375313 , 8.325781 , 8.30734 , 8.313846 , 8.335098 ,
8.359409 , 8.379589 , 8.386902 , 8.377978 , 8.352097 ,
8.308868 , 8.243141 , 8.151444 , 8.034054 , 7.8960104,
7.7449217, 7.585512 , 7.421139 , 7.254254 , 7.0934505,
6.9450407, 6.811127 , 6.6935964, 6.592676 , 6.5094566,
6.4417987, 6.390399 , 6.3554926, 6.3369603, 6.3329616,
6.3431134, 6.3648477, 6.3899426, 6.416245 , 6.4398155,
6.457299 , 6.461171 , 6.4458175, 6.408045 , 6.3481317,
6.2683845, 6.1794457, 6.086313 , 5.9965906, 5.917904 ,
5.8516035, 5.8051486, 5.7863135, 5.794681 , 5.8297243,
5.8908987, 5.980261 , 6.0962725, 6.232703 , 6.386052 ,
6.5428267, 6.6911154, 6.823757 , 6.93193 , 7.0096216,
7.0513644, 7.0608153, 7.04208 , 7.004848 , 6.956893 ,
6.9008403, 6.848636 , 6.808554 , 6.785692 , 6.781085 ],
dtype=float32)]
非常感谢你 将
设置为[0,1]
或范围（len（dFF\u snips））
：
当我运行您的代码时，我会得到您想要的图像输出
fig, ax = plt.subplots()
ax.imshow(dFF_snips, cmap= 'hot', interpolation = 'none', aspect = 'auto')
ax.set_yticks([0,1])