match

R partial match in data frame

由 淺唱寂寞╮ 提交于 2020-01-04 09:04:41
问题 How can I address a partial match in a data frame? Lets say this is my df df V1 V2 V3 V4 1 ABC 1.2 4.3 A 2 CFS 2.3 1.7 A 3 dgf 1.3 4.4 A and I want to add a column V5 containing a number 111 only if the value in V1 contains a "f" in the name and a number 222 only if the value in V1 contains a "gf". Will I get problems since several values contain an "f" - or does the order I ender the commands will take care of it? I tried something like: df$V5<- ifelse(df$V1 = c("*f","*gf"),c=(111,222) ) but

react-router match query string

由 橙三吉。 提交于 2020-01-03 16:49:41
问题 https://github.com/reactjs/react-router/example I tried the example on npm start query string match to route is not working on the example. When I click the second one, It's activating wrong one http://localhost:8080/query-params/user/bob?showAge=1 and refreshing on the link above not matching any routes. Even if I have change the example code to below <Route path="user/:userID(?:showAge)" component={User} /> I tried couple of things that might work based on docs but none of them worked. Am I

Orchard之创建列表

由 佐手、 提交于 2020-01-03 10:27:09
一：首先需要确保 List Module 的开始 即： Enable 之后，左边的列表中，多了一个 List 功能菜单。 二：为 Content type 选定 Cotainable 不再赘述。 三：创建 List 四：为 List 添加 Item 注意，一定要在 List 处添加 Item，如下： 如果我们在 New 处直接添加 Item 本身，则不会出现在列表中，如下： 五：最终效果 六：自定义列表显式 现在，我们并不需要显式那么多的内容在列表中，这个时候，就需要我们改写 Placement.info 这个文件，如下： 在这里，几乎每一行都有自己的意义，现在一一指出： <Match ContentType="Event"> 这里我们的 ContentType 的 ID，不是 DispalyName <Match DisplayType="Detail"> 定义详细显式时候的内容 <Place Parts_Common_Body="Content:1"/> </Match> <Match DisplayType="Summary"> 定义概要显式时候的内容（如：列表） <Place Parts_Comments_Count="Nowhere" 不显式评论信息 Parts_Common_Metadata_Summary="Nowhere" 不显式标题和发表时间等元数据信息

Regex to find id in url

由 点点圈 提交于 2020-01-03 08:50:11
问题 I have the following URL: http://example.com/product/1/something/another-thing Although it can also be: http://test.example.com/product/1/something/another-thing or http://completelydifferentdomain.tdl/product/1/something/another-thing And I want to get the number 1 (id) from the URL using Javascript. The only thing that would always be the same is /product . But I have some other pages where there is also /product in the url just not at the start of the path. What would the regex look like?

Number of Matches Between Two Comma Separated Factors in a Data Frame

由 天大地大妈咪最大 提交于 2020-01-03 05:10:10
问题 I have a dataframe that looks something like this: Row ID1 ID2 Colors1 Colors2 1 1 2 Green, Blue Red, Orange 2 1 3 Green, Orange Orange, Red I would like to create a calculation that tells me the count of colors in common between Colors1 and Colors2. The desired result is the following: Row ID1 ID2 Colors1 Colors2 Common 1 1 2 Green, Blue, Purple Green, Purple 2 #Green, Purple 2 1 3 Green, Orange Orange, Red 1 #Orange 回答1: You can use: col1 <- strsplit(df$Colors1, ", ") col2 <- strsplit(df

Python网络爬虫与信息提取

由 妖精的绣舞 提交于 2020-01-03 04:25:13
1.Requests库入门 Requests安装 用管理员身份打开命令提示符： pip install requests 测试：打开IDLE： >>> import requests >>> r = requests.get("http://www.baidu.com") >>> r.status_code 200 >>> r.encoding = 'utf-8' #修改默认编码 >>> r.text #打印网页内容 HTTP协议 超文本传输协议,Hypertext Transfer Protocol. HTTP是一个基于“请求与响应”模式的、无状态的应用层协议。 HTTP协议采用URL作为定位网络资源的标识。 URL格式 http://host[:port][path] host:合法的Internet主机域名或IP地址 port：端口号，缺省端口为80 path：请求资源的路径 操作 方法 说明 GET 请求获取URL位置的资源 HEAD 请求获取URl位置资源的响应消息报告，即获得该资源的头部信息 POST 请求向URL位置的资源后附加新的数据 PUT 请求向URL位置存储一个资源，覆盖原URL位置的资源 PATCH 请求局部更新URL位置的资源，即改变该处资源的部分内容 DELETE 请求删除URL位置存储的资源 Requests主要方法 方法 说明 requests

爬虫系列之豆瓣图书排行

由 為{幸葍}努か 提交于 2020-01-03 04:15:18
豆瓣上有图书的排行榜，所以这次写了一个豆瓣的爬虫。 首先是分析排行榜的url 根据这个可以很容易的知道不同图书的排行榜就是在网站后面加上/tag/【类别】，所以我们首先要获得图书的类别信息。 这里可以将读书首页的热门标签给爬下来。 爬取标签内容并不难，代码如下： 1 def getLabel(url): #获得热门标签 2 html = getHTMLText(url) 3 soup = BeautifulSoup(html, 'html.parser') 4 a = soup.find_all('a') 5 label_list = [] 6 for i in a: 7 try: 8 href = i.attrs['href'] 9 match = re.search(r'/tag/.*', href) 10 if match and match[0][5]!='?': 11 label_list.append(match[0]) 12 except: 13 continue 14 return label_list 接下来是进入排行榜页面进行信息爬取， 代码如下： 1 def getBookInfo(): 2 label_list = getLabel('https://book.douban.com/') 3 label = get_label(label_list) 4

Excel Find the largest partial value in an indexed list

由 [亡魂溺海] 提交于 2020-01-03 02:54:13
问题 I am working with excel and trying to find if a portion of one cell matches anything from a list. I am attempting to extract that part of the cell as my result. The formula I am working with is: {=INDEX($A$1:$A$10,MATCH(1,COUNTIF(B1,"* "&$A$1:$A$10&"*"),0))} note: had to space out the asterisk to avoid italics A1 to A10 is the list i am referencing and anything in column B is what I am searching partail parts for in the list The problem is the formula return the most common value found in the

Regular Expression - Global Search Between 2 Whole Words

由 风流意气都作罢 提交于 2020-01-03 02:54:12
问题 I'm attempting to search for content between 2 whole words using a regular expression. For example: all the girls went to the mall in town. In the above string I want to find the content between the word all and to : (?<=all).*?(?=to)/g However, it's finding two matches since the expression is not instructed to search between whole words only: " the girls went " //between all and to " in " //between m(all) and (to)wn I had thought to add spaces in the expression, like this: (?<= all ).*?(?=

R: cbind based on match first few letters or number of a cells

由 我们两清 提交于 2020-01-02 22:38:40
问题 I have df1 like this: df1 <- data.frame(A=c("x01","x02","y03","z02","x04"), B=c("A01BB01","A02BB02","C02AA05","B04CC10","C01GX02")) A B 1 x01 A01BB01 2 x02 A02BB02 3 y03 C02AA05 4 z02 B04CC10 5 x04 C01GX02 I have df2 like this. X Y 1 a A01BB 2 b A02 3 c C02A 4 d B04 5 e C01GX df2 <- data.frame(X=c("a","b","c","d","e"), Y=c("A01BB","A02","C02A","B04","C01GX")) I want to match the first few letters/ numbers in df1$B with those in df2$Y. And then merge two dataframe based on the best match, as
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