无法在“网状”中使用“熊猫”模块

Question

我尝试在R中使用keras，当我尝试调用flow_images_from_dataframe()时出现错误：

Error in flow_images_from_dataframe() : 
  Pandas (python module) must be installed in the same environment as Keras.Install it using reticulate::virtualenv_install("pandas", envname = "r-tensorflow") or reticulate::conda_install("pandas", envname = "r-tensorflow") depending on the kind of environment you are using.

我尝试了以下方法：

reticulate::py_module_available("pandas")
# FALSE.

# checking that environment is there:
reticulate::virtualenv_list()
# "r-reticulate" "r-tensorflow"

# activate the environment:
use_virtualenv('r-tensorflow')

reticulate::virtualenv_install("pandas", envname = "r-tensorflow")
# ...
# ...
# Installing collected packages: pandas
# Successfully installed pandas-1.1.5

# Trying again:
py_module_available("pandas")
# FALSE

# The issue is specific to pandas, other modules are fine:
reticulate::py_module_available('scipy')
# TRUE

Answer 1

我仍然不明白那里的问题是什么以及为什么 virtualenv_install() 没有完成这项工作，但帮助我的解决方案很简单

py_install("pandas")