%% Cell Magic标签在Jupyter笔记本电脑中不起作用? [英] %% Cell magic tag not working in Jupyter notebook?

问题描述

我是Jupyter笔记本电脑的新手，我正在尝试使用rpy2使用Python和R进行设置.我有线

I'm new to Jupyter notebook and I'm trying to set one up with Python and R, using rpy2. I have the line

%%R -i df

出现错误SyntaxError:语法无效

which gives me the error SyntaxError: invalid syntax

但是，当我只使用一个百分比时，例如

However when I use just one %, such as

%R require(ggplot2)

这很好用.如何解决此问题?我正在使用Python 2.7.

this works fine. How can I fix this issue? I am using Python 2.7.

推荐答案

%前缀用于线魔术，而%%前缀用于单元魔术.

% prefix is for a line magic, whereas %% prefix is for a cell magic.

%%R    # <-- must be the only instruction on this line
{body of cell in R code}

而:

%R {one line of R code}

我没有安装R，但是我认为您可能想在R上调用bash命令；在这种情况下，请使用!调用命令:

I don't have R installed, but I think you may have wanted to call a bash command on R; in that case, use ! to call the command:

!R -i df

例如，如果我键入!python -i，我会得到有关当前python环境的信息:

for instance, if I type !python -i, I get info about my current python environment:

Python 3.6.2 |Anaconda custom (x86_64)| (default, Jul 20 2017, 13:14:59) 
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 

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