目前,这个d3 js条形图从上到下动画.最有可能是因为d3js呈现从顶部开始的图表的方式.这可能是一个常见问题,对于那些熟悉d3js麻烦的人来说可能很容易,我怎样才能从头到尾制作这个动画？
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.bar {
fill: steelblue;
}
.bar:hover {
fill: brown;
}
.axis--x path {
display: none;
}
</style>
<svg width="1260" height="500"></svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
var svg = d3.select("svg"),
margin = {top: 20, right: 20, bottom: 30, left: 40},
width = +svg.attr("width") - margin.left - margin.right,
height = +svg.attr("height") - margin.top - margin.bottom;
var x = d3.scaleBand().rangeRound([0, width]).padding(0.4),
y = d3.scaleLinear().rangeRound([height, 0]);
var g = svg.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + …这是我通过pd.read_csv()读取的输入csv文件
ProductCode,Date,Receipt,Total
x1,07/29/15,101790,17.35
x2,07/29/15,103601,8.89
x3,07/29/15,103601,8.58
x4,07/30/15,101425,11.95
x5,07/29/15,101422,1.09
x6,07/29/15,101422,0.99
x7,07/29/15,101422,3
y7,08/05/15,100358,7.29
x8,08/05/15,100358,2.6
z3,08/05/15,100358,2.99
import pandas as pd
df = pd.read_csv('product.csv')
#I have to add some columns to the data:
df['Receipt_Count'] = df.groupby(['Date','Receipt'])['Receipt'].transform('count')
df['Day_of_Week'] = pd.to_datetime(df['Date']).dt.weekday_name
我的csv文件中有大约800K的行.当我运行将日期转换为weekday_name的代码行时,我需要大约2分钟.我知道我首先将我的'Date'列转换为datetime,因为它被视为来自csv的字符串,然后它被转换为它的工作日等价物.有什么办法可以缩短转换时间吗？
我对Pandas/Python很新,所以我不确定我是否错过了这里的内容.
让我们说我有这个数据框架
Date DayOfWeek Url Hits
09/01/2016 Thursday url1 3
09/01/2016 Thursday url2 5
09/01/2016 Thursday url3 4
09/02/2016 Friday url1 7
09/02/2016 Friday url3 6
09/03/2016 Saturday url2 9
09/03/2016 Saturday url1 5
09/04/2016 Sunday url2 6
09/07/2016 Wednesday url10 4
09/07/2016 Thursday url2 3
09/07/2016 Thursday url4 2
09/07/2016 Thursday url5 3
09/07/2016 Thursday url1 3
09/08/2016 Friday url1 3
09/08/2016 Friday url4 3
09/08/2016 Friday url5 2
09/08/2016 Friday url8 6
09/09/2016 Saturday url2 1
09/09/2016 Saturday url3 …我是 Thymeleaf 的新手。刚刚读过它，现在，我尝试在前端使用 Thymeleaf 显示一些文本，在后端从 Spring MVC 获取值。
文件 successPwd.html
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" lang="en">
<head>
<meta charset="UTF-8"/>
<title>Password Change</title>
</head>
<body>
<h2>Password Changed</h2>
Your password has been changed. Your account information is below.
Username: [[${account.username}]] <br/>
First Name: [[${account.firstName}]] <br/>
Last Name: [[${account.surname}]] <br/>
</body>
</html>
文件 PasswordResetController.java
@RequestMapping(value= "/user/new_password", method = RequestMethod.POST)
public String saveNewPassword(@RequestParam(value="new_password",required=false) String password, @RequestParam(value="hash") String hash, Model model)
{
//some codes to check hash
AccountInfo account = accountInfoService.getAccount(hash);
model.addAttribute("account", account);
return "/successPwd";
} …