我想计算仪器之间的相关系数,我的数据库表如下:
$next
我设法使用以下代码将数据加载到数据帧中:
$this->app->singleton(NodeInErrorHandlerChain::class, function ($app) {
return new ModelNotFoundNode(ValidationExceptionNode(null));
});
这将生成此输出,而不是实际的相关矩阵,这是我做错了什么??:
"instrument" "openprice_bid"
"CS.D.BITCOIN.TODAY.IP" "5249.16"
"KA.D.CHNPLN.MAR.IP" "5283.36"
"CS.D.SONY.TODAY.IP" "5285.70"
"CS.D.FACEBOOK.TODAY.IP" "5295.07"
"CS.D.BRENTCRUDE.TODAY.IP" "5272.45"
"KA.D.CHNPLN.MAR.IP" "5270.39"
"CS.D.BITCOIN.TODAY.IP" "5264.01"
"CS.D.BITCOIN.TODAY.IP" "5275.67"
"CS.D.TESLA.TODAY.IP" "5270.90"
"CS.D.SONY.TODAY.IP" "5329.63"