2022-05-22 sns.clustermap MemoryError: unable to allocate array data.

python做个sns.clustermap,前期计算linkage

Zy = linkage(df2, method='ward', metric='euclidean',optimal_ordering=True)

一直报错

Zy = linkage(df2, method='ward', metric='euclidean',optimal_ordering=True)
Traceback (most recent call last):
  File "", line 1, in 
    Zy = linkage(df2, method='ward', metric='euclidean',optimal_ordering=True)
  File "C:\Users\HJD\anaconda3\lib\site-packages\scipy\cluster\hierarchy.py", line 1060, in linkage
    y = distance.pdist(y, metric)
  File "C:\Users\HJD\anaconda3\lib\site-packages\scipy\spatial\distance.py", line 2023, in pdist
    dm = np.empty((m * (m - 1)) // 2, dtype=np.double)
MemoryError: Unable to allocate 5.22 GiB for an array with shape (700895520,) and data type float64

Zy = linkage(df2, method='ward', metric='euclidean')
Traceback (most recent call last):

  File "", line 1, in 
    Zy = linkage(df2, method='ward', metric='euclidean')

  File "C:\Users\HJD\anaconda3\lib\site-packages\scipy\cluster\hierarchy.py", line 1074, in linkage
    result = _hierarchy.nn_chain(y, n, method_code)

  File "_hierarchy.pyx", line 929, in scipy.cluster._hierarchy.nn_chain

  File "stringsource", line 249, in View.MemoryView.array_cwrapper

  File "stringsource", line 176, in View.MemoryView.array.__cinit__

MemoryError: unable to allocate array data.

baidu google查了一大堆，，最后还是换了一台大内存(96G)的机器解决了

真的是内存小了，数组放不下..用的16G的电脑，，不行啊