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python - AttributeError: 'str' object has no attribute 'decode' in fitting Logistic Regression Model

I am currently trying to create a binary classification using Logistic regression. Currently I am in determining the feature ... let me know if I missed anything in my question...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Angular: Conditional class whit ngClass don't work

What is wrong with my Angular code? <ng-container matColumnDef="statusDescription"> <th mat-header-cell *matHeaderCellDef width="300 ... line by line in the list, so false at all...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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element可编辑的合并单元格表格

需求： vue+element项目下的一个功能其中，枚举值成员行显示名称为可编辑文本框用户点击表格下面添加枚举弹出录入容器，允许用户添加枚举值成员行号和显示名称，添加后数据插入到对应的枚举中枚举定义表格中，成员行999表示默认显 ... 么操作最后都要排序因为合并单元格需要根据排序来但我想的是不是太麻烦了，有没有更简单的思路，甚至不局限于表格...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Could not find com.android.tools.build:gradle:6.5

I am getting this error on windows system. Unable to sync. Already tried invalidate cache and restart. The log also ... https://services.gradle.org/distributions/gradle-6.5-bin.zip...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter的photoView插件有人用过吗，在预览多张图片时，如果地址只能future获取该如何操作

PhotoViewGalleryPageOptions _buildItem(BuildContext context, int index) { final item = (widget.bloc.state as AssetPhotoInfo).images[index ... 种方法依然无果，futureBuilder由于返回的是widget，也不适用...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Custom Grid view using FlatList in Reat Native using json data?

Actually,I want to create a grid view using the FlatList. I have a read lot of solutions they all are creating the view by the ... React.Fragment> ) : null} </View> </Card> ); };...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vue组件怎么才能销毁？

我这页面是三个组件：然后每次进去都是把所有组件里面的额数据都执行了一遍，我想改成一个对应一个的该怎么做？代码格式是这样子的，外面包的是vantUI的 popup组件，if销毁好像并不管用...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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octave - Is it possible to derive a classdef class from an old-style class?

Is it possible to derive a classdef class from an old-style class? In Octave 4.0 the ss class is defined in ... about an unknown class ss even when the control package is loaded....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vue的路由router.addRoutes添加不上？

现在的业务逻辑是这样的：权限给前端去处理，用户登录后根据用户的返回的key去匹配（就是一个数组，写死的）如果有的话说明没有权限，就是这个key找到了说明没有权限然后处理时候生成一个新的数组， ... } } 现在的问题就是router.addRoutes(store.getters.addRouters)这里硬是跳不过去，然后路由也出现了死循环怎么解？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - MongoDB: Split multi-serie in multiple columns

I have loaded a set of tweet in a MongoDB DB, and calculated the number of tweets grouped per month per User. I have a list as ... 1 15 4 User2 2 25 5 User3 1 12 6 User3 2 22...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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每次使用 docker 构建前端应用镜像，如何解决 npm 依赖库每次重新 install 导致耗费时间问题？

假设现在有一个前端的项目，需要下载 npm 依赖库才能运行每次使用 docker 去构建这个前端项目镜像时都需要在镜像里面下载依赖库，才能成功运行，这样会耗费大量的时间我知道有一种做法是先在本地去 npm ... 有深入了解过 docker，希望各位大佬能指导一下，请问如何解决每次构建镜像时，npm 依赖库都需要重新 install 问题？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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async 的语法糖函数是如何捕获异常的？——大佬间文章矛盾

async 函数的实现，就是将 Generator 函数和自动执行器，包装在一个函数里 async function fn(args){ // ... } // 等同于 function fn(args){ ... ); } run() .catch(function handleError(err) { err.message; // Oops! })...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Spring cloud stream binder - Invalid bean definition

I am using: some-eventhub.some-service-1.errors in my application's Service Activator to listen to ... factoryMethodName=null; initMethodName=null; destroyMethodName=null] bound....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to Add Legend To D3 Pie Chart

I have been trying to add a legend to this pie chart that I have created. I tried using code from getting a legend using a bar ... ) .attr("d", arc); </script> </body> </html>...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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on('click',func) 和 $(document).on('click','.smt',func)?

自学小白想问一下两者的分别 $('.stm').on('click',function(){ }); $(document).on('click','.stm',function(){ });...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Merge/add audio in video file in specific position of video with ffmpeg command

Example: I have a 10sec video and 4 sec audio file. I want to merge audio file in video from 5th sec of video to 9th ... t tried anything till now as I have no idea where to start....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Sometimes System.Net.Mail.SmtpException: The SMTP server requires a secure connection or the client was not authenticated

I use SmtpClient to send mail. However, when I run the code, sometimes it throws "System.Net.Mail.SmtpException: ... Allow less secure apps. I have disabled 2-Step Verification....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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webpack 编译时 require 能不能保留？

我在尝试写个框架，框架目录旁边是我的测试应用目录。希望在框架中动态载入应用中的 js。用了 fs 遍历 js 文件，然后 require。但是我发现，一但框架被 webpack 编译，我就没法正常使用 require 载入应用中的 js 了。何解？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reporting services - SSRS 401 unauthorized when connecting to data source

I have searched google and stack overflow before making this post, but i might have missed the answer to my issue. I have ... dont know what or where to look. Thank you in regards....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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installing UWP app on windows server 2019

i create deployment package from visual studio and copied deployable to windows server 2019. When i try to run Add- ... How do i install uwp app on windows server 2019?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Minimum value for each row in pandas dataframe

im trying to compute the minimum for each row in a pandas dataframe. I would like to add a column that calculates the minimum ... df.where(df != "NaN").min(axis=1) without success...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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SQL解析问题。

select replace("abc:a",";",""); 如上语句，在JDBC执行是会报错的，但是如果使用HUE或者navcat执行时不会报错。各位有什么办法可以处理JDBC这个问题吗...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net standard 不要学有好多的坑,并且.net 5就不存在?

今天看到有大神说 : .net standard 不要学有好多的坑,并且.NET 5就不存在目前搜寻网路上有查看到坑 : .NET Standard库引用导致的FileNotFoundException探究【.NET Standard依赖问题，吐血推荐】未能 ... CSDN博客请问大神们是否还有其他坑能分享呢? 是否真的不堪吗? 我个人用到现在挺好的...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Django filter all assigned foreing keys

Hello I would like to ask how to filter all assigned ForeignKeys of the object. My models looks like: class Person ... ): class Meta: model = VirtualProject fields = '__all__'...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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router-link 使用使用命名路由跳转为何该组件里router-view会被注释?

<router-link :to="{ name: 'user', params: { id: 'foo' }}">to user</router-link>| <router-link to="/user/foo">to user</router-link> 这是图一和图二的为啥图一里 router-view 被注释了？这是代码链接...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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类中用 property 的代码：`obj = property(lambda self: object(), ...)` 解释

注：标题因为字数限制，代码不全；请看下面正文是（问题的）完整代码一份 python 库中的源码节选：【问题源码】 class SomeBase(object): def __init__(self, ...): ... obj = ... 和 SomeBase（类）有关系吗？如果描述有什么不足的地方，可以在评论区指出，我可以再编辑补充 ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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275 views

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Moment Timezone，求哪位js恩师写一个获取不同时区的当前时间

搞了一下午了希望大神可以帮忙写个function 例：getTime('Asia/Tokyo') //2020-09-24　17:43:19 getTime('Europe/London') //2020-09-24　08:44:29 可以支持世界不同城市的查询，感谢了用...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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powerbi - Use category column and measures simultaneously as rows in matrix

Does anyone know if it's possible to use a category column and a measure, at the same time, as rows in a power bi ... 'm needing for this. Thank you all in advance for the help!...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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