Qt平台插件问题Rstudio [英] Qt platform plugin issue Rstudio

问题描述

我正在尝试通过RStudio绘制海洋图.

I am trying to do a seaborn heatmap plot via RStudio.

我在R中使用reticulate包.

下面是我的代码:

library(reticulate)
use_condaenv("python36", conda = "auto", required = FALSE)
os <- import("os")
os$listdir(".")
py_available()


sns <- import('seaborn')
plt <- import('matplotlib.pyplot')
pd <- import('pandas')


dat <- AirPassengers
# convert time series to data frame
dat <- data.frame(matrix(dat, ncol=frequency(dat), dimnames=dimnames(.preformat.ts(dat)) ))
dat
sns$heatmap(r_to_py(dat), fmt = "g", cmap = "viridis")
plt$show()

但是，我收到以下错误，并且当我的R会话到达最常见的热图线时，我的R会话被中止了.我该怎么办才能解决此错误?

However, I receive the following error and my R session gets aborted when it reaches the seaborn heatmap line. What should I do to fix this error?

推荐答案

我在RStudio每日内部版本1.2.114和安装了PyTorch和matplotlib的Anaconda Python 3.7环境中遇到了相同的问题.

I had the same problem with RStudio daily build 1.2.114 and a Anaconda Python 3.7 environment where I had PyTorch and matplotlib installed.

我按照@Sheperd的说明进行了以下更改，指向您已安装matplotlib的环境；就我而言pytorch37:

I followed the instructions by @Sheperd, with the following changes, pointing to the environment where you have matplotlib installed; in my case pytorch37:

import matplotlib
import matplotlib.pyplot as plt
import numpy as np

import os
os.environ['QT_QPA_PLATFORM_PLUGIN_PATH'] = 'C:/Users/user_name/Anaconda3/envs/pytorch37/Library/plugins/platforms'

t = np.arange(0.0, 2.0, 0.01)
s = 1 + np.sin(2 * np.pi * t)

fig, ax = plt.subplots()
ax.plot(t, s)

ax.set(xlabel='time (s)', ylabel='voltage (mV)',
       title='About as simple as it gets, folks')
ax.grid()

plt.show()

现在，找到了PyQt并且 RStudio 不再崩溃.

Now, PyQt is found and RStudio doesn't crash anymore.

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