我正在尝试从vega复制粘贴示例,但收到“未定义vega”错误。
%%html
<!DOCTYPE html>
<html>
<head>
<!-- Import Vega 5 & Vega-Lite 3 (does not have to be from CDN) -->
<script src="https://cdn.jsdelivr.net/npm/vega@[5]"></script>
<script src="https://cdn.jsdelivr.net/npm/vega-lite@[5]"></script>
<!-- Import vega-embed -->
<script src="https://cdn.jsdelivr.net/npm/vega-embed@[5]"></script>
</head>
<body>
<div id="vis"></div>
<script type="text/javascript">
var spec = "https://raw.githubusercontent.com/vega/vega/master/docs/examples/bar-chart.vg.json";
vegaEmbed('#vis', spec).then(function(result) {
// Access the Vega view instance (https://vega.github.io/vega/docs/api/view/) as result.view
}).catch(console.error);
</script>
</body>
</html>
jupyterlab如何用打破这种局面的魔力对待html / js有什么特别之处?
答案 0 :(得分:1)
“头”声明在Jupyter cel中不起作用。您可以尝试使用类似方法来定义vegaEmbed:
int length = strlen(tmp);
然后,仅包含正文HTML的cel应该起作用。 (注意:请在普通的Jupyter笔记本中尝试此操作,而不是在Jupyterlab中尝试。)
更新:
这在jupyter笔记本中有效,但在JupyterLab中不起作用:
<script>
requirejs.config({
baseUrl: 'https://cdn.jsdelivr.net/npm/',
paths: {
"vega-embed": "vega-embed@5?noext",
"vega-lib": "vega-lib?@5noext",
"vega-lite": "vega-lite@4?noext",
"vega": "vega@5?noext"
}
});
requirejs(["vega", "vega-embed"], function(vega, vegaEmbed) {
console.log(vega.version);
console.log(vegaEmbed.version);
window.vegaEmbed=vegaEmbed;
window.vega = vega;});
</script>
答案 1 :(得分:1)
如果您不介意安装 altair,可以这样做:
from altair.vega import vega
import json
with open("bar-chart.vg.json") as f:
s = json.load(f)
vega(s)
这在 Jupyter Lab 中肯定有效,不确定笔记本