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python:多分类-计算混淆矩阵confusion_matrix、precision、recall、f1-score分数

1.目标:多分类,计算混淆矩阵confusion_matrix,以及accuracy、precision、recall、f1-score分数。2.代码:1)使用sklearn计算并画出混淆矩阵(confusion_matrix);2)使用sklearn计算accuracy(accuracy_score);3)使用sklearn计算多分类的precision、recall、f1-score分数。以及计算每个类别的precision、recall、f1-score。precision:precision_scorehttps://scikit-learn.org/stable/modules/ge

解决问题:There is no tracking information for the current branch

目录一、问题二、解决方法方法一方法二方法三一、问题执行gitpull遇到如下报错提示:Thereisnotrackinginformationforthecurrentbranch.Pleasespecifywhichbranchyouwanttomergewith.具体过程如下:$gitpullremote:Enumeratingobjects:13,done.remote:Countingobjects:100%(13/13),done.remote:Compressingobjects:100%(13/13),done.remote:Total13(delta5),reused0(del

解决问题:There is no tracking information for the current branch

目录一、问题二、解决方法方法一方法二方法三一、问题执行gitpull遇到如下报错提示:Thereisnotrackinginformationforthecurrentbranch.Pleasespecifywhichbranchyouwanttomergewith.具体过程如下:$gitpullremote:Enumeratingobjects:13,done.remote:Countingobjects:100%(13/13),done.remote:Compressingobjects:100%(13/13),done.remote:Total13(delta5),reused0(del

python - 运行时错误 : There is no current event loop in thread in async + apscheduler

我有一个异步功能,需要每N分钟运行一次apscheduller。下面有一段python代码URL_LIST=['','','',]defdemo_async(urls):"""Fetchlistofwebpagesasynchronously."""loop=asyncio.get_event_loop()#eventloopfuture=asyncio.ensure_future(fetch_all(urls))#taskstodoloop.run_until_complete(future)#loopuntildoneasyncdeffetch_all(urls):tasks=[]

python - 运行时错误 : There is no current event loop in thread in async + apscheduler

我有一个异步功能,需要每N分钟运行一次apscheduller。下面有一段python代码URL_LIST=['','','',]defdemo_async(urls):"""Fetchlistofwebpagesasynchronously."""loop=asyncio.get_event_loop()#eventloopfuture=asyncio.ensure_future(fetch_all(urls))#taskstodoloop.run_until_complete(future)#loopuntildoneasyncdeffetch_all(urls):tasks=[]

python - Scikit Learn TfidfVectorizer : How to get top n terms with highest tf-idf score

我正在研究关键字提取问题。考虑非常普遍的情况fromsklearn.feature_extraction.textimportTfidfVectorizertfidf=TfidfVectorizer(tokenizer=tokenize,stop_words='english')t="""TwoTravellers,walkinginthenoondaysun,soughttheshadeofawidespreadingtreetorest.Astheylaylookingupamongthepleasantleaves,theysawthatitwasaPlaneTree."Howu

python - Scikit Learn TfidfVectorizer : How to get top n terms with highest tf-idf score

我正在研究关键字提取问题。考虑非常普遍的情况fromsklearn.feature_extraction.textimportTfidfVectorizertfidf=TfidfVectorizer(tokenizer=tokenize,stop_words='english')t="""TwoTravellers,walkinginthenoondaysun,soughttheshadeofawidespreadingtreetorest.Astheylaylookingupamongthepleasantleaves,theysawthatitwasaPlaneTree."Howu

PackagesNotFoundError: The following packages are not available from current channels的解决办法

文章目录问题描述方法一:在conda命令前加上conda-forge方法二、去Anaconda官网找到对应的软件包命令1、登录Anaconda官网(https://anaconda.org/)2、找到对应需要下载的版本(要看清支不支持你当前系统)3、在诸多下载命令中选择一条就可以了4、返回AnacondaPowershellPrompt中,输入刚刚复制的指令总结问题描述提示:是不是你也遇到了这样的问题?方法一:在conda命令前加上conda-forge示例:打开我们的anacondaPrompt,输入:condainstall-cconda-forgepyside2(这里以pyside2为例

python - Mac os x 10.8 : Fatal Python error: PyThreadState_Get: no current thread importing mapnik 上的 Homebrew + Python

我的Mac(10.8.3)上有2条python:默认版本和Homebrew软件的2.7版本。到目前为止,我可以安装模块并将它们与我的brewpython一起使用。我用brewinstallmapnik(mapnik-2.1.0)安装了mapnik,它编译正确。但是,如果我打开python并输入importmapnik,就会出现以下错误并且python退出:>>>importmapnikFatalPythonerror:PyThreadState_Get:nocurrentthreadAborttrap:6Macosx也显示错误窗口,内容如下:Process:Python[60666]P

python - Mac os x 10.8 : Fatal Python error: PyThreadState_Get: no current thread importing mapnik 上的 Homebrew + Python

我的Mac(10.8.3)上有2条python:默认版本和Homebrew软件的2.7版本。到目前为止,我可以安装模块并将它们与我的brewpython一起使用。我用brewinstallmapnik(mapnik-2.1.0)安装了mapnik,它编译正确。但是,如果我打开python并输入importmapnik,就会出现以下错误并且python退出:>>>importmapnikFatalPythonerror:PyThreadState_Get:nocurrentthreadAborttrap:6Macosx也显示错误窗口,内容如下:Process:Python[60666]P