小编par*_*vij的帖子

请帮帮我,我无法安装"MASS"包.

> library(MASS)
Error in library(MASS) : there is no package called ‘MASS’

我尝试从本地安装MASS包:

> utils:::menuInstallLocal()  
package ‘MASS’ successfully unpacked and MD5 sums checked  
Warning: cannot remove prior installation of package ‘MASS’

即使我无法删除"MASS":

> remove.packages("MASS")  
Removing package from ‘C:/Program Files/R/R-3.0.1/library’  
(as ‘lib’ is unspecified)  
Error in find.package(pkgs, lib) : there is no package called ‘MASS’

还有这个选项,我无法安装包:

> options(install.lock=T)  
> utils:::menuInstallLocal()  
package ‘MASS’ successfully unpacked and MD5 sums checked  
Warning: cannot remove prior installation of package ‘MASS’  
Warning: restored ‘MASS’  
Warning …

我需要为python安装dryscrape但我得到错误,有什么问题？

C:\Users\parvij\Anaconda3\Scripts>pip install dryscrape

我懂了:

Collecting dryscrape
Collecting webkit-server>=1.0 (from dryscrape)
  Using cached webkit-server-1.0.tar.gz
Collecting xvfbwrapper (from dryscrape)
Requirement already satisfied (use --upgrade to upgrade): lxml in c:\users\parvij\anaconda3\lib\site-packages (from dryscrape)
Building wheels for collected packages: webkit-server
  Running setup.py bdist_wheel for webkit-server ... error
  Complete output from command c:\users\parvij\anaconda3\python.exe -u -c"import setuptools,tokenize;__file__='C:\\Users\\parvij\\AppData\\Local\\Temp\\pip-build-o7nlv0dz\\webkit-server\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d C:\Users\parvij\AppData\Local\Temp\tmp71w59qv6pip-wheel- --python-tag cp35:
  running bdist_wheel
  running build
  'make' is not recognized as an internal or external command,
  operable program or batch file. …

我的问题是我的 PL/SQL 开发人员不显示 UTF8 字符，而是显示为正方形。

1. 我将注册表中的所有“NLS_LANG”变量更改为“AMERICAN_AMERICA.UTF8”。
2. 我从 Windows 的控制面板中在区域和语言中添加了我的语言。
3. 在 plsql Developer 中，选中“工具>首选项>选项>启用 Unicode”。

（Windows 10 和 Oracle 11g 和 PLSQL Developer 9）。

我还错过了什么？

我正在尝试每 x 秒发送一次InlineKeyboardHandler。为此我使用了它updater.job_queue.run_repeating，但它的行为很奇怪。

除非我先与机器人进行另一次交互，否则键盘无法工作。我编写了一段简单的代码，您可以测试一下。

from telegram import Update, InlineKeyboardButton, InlineKeyboardMarkup
from telegram.ext import Updater, CommandHandler, ConversationHandler, CallbackContext, CallbackQueryHandler

user_id = '*********'
tlg_token = '******************************'
SELECTING_COMMAND=1
keyboard = [[InlineKeyboardButton('Button: Print Clicked', callback_data=1)],]
reply_markup = InlineKeyboardMarkup(keyboard)

def menu(update: Update, context: CallbackContext) -> int:
    update.message.reply_text('sent by command button:', reply_markup=reply_markup)
    return SELECTING_COMMAND

def InlineKeyboardHandler(update: Update, _: CallbackContext) -> None:
    print('clicked')
    return 1

def cancel(update: Update, context: CallbackContext) -> int:
    return ConversationHandler.END    

updater = Updater(tlg_token, use_context=True)
dispatcher = updater.dispatcher

conv_handler = …

是否有任何包在R中生成此图像？

我想看一些变量的相关性,分布和散点图.

我试图在循环中保存多个绘图，但它会将它们相互绘制。我应该怎么办？

示例代码：

import pandas as pd
import seaborn as sns
data=pd.DataFrame({'a':[1,2,3,4,5,6],'b':[0,1,1,0,1,1],'c':[0,0,0,1,1,1]})
for i in ['b','c']:
    img=sns.boxplot(data.a, groupby=data[i])
    fig = img.get_figure()
    fig.savefig(i)