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$ 向量 点积 可以用R语言



x1 = [0.05540125 -0.33735585 -0.2531775 -0.43814594 -0.09458714 1.0648558 -0.5353676 -0.9636384 -0.7925104 0.09754358 -0.10920998 0.00244618 0.03180499 0.04420318 -0.1294798 0.03797745 -0.05250629 -0.5419286 -0.14957885];
y1 = [36 0 5.0000000000 2 4.0 6.57 01 04 01 01 02 06 03 07 15 08 04 1 1];

x=dot(x1,y1)


output=1/(1+exp(-x))
10890
$
8063
$
5616
$
wolframalpha非常强大
5224
$
4626
{ "template":"1",
"name":"share", "type":"small", "pic1":"3036", "pic2":"3036", "page_pic1":"3036", "page_pic2":"3036", "url":"https://www.funnyai.com/share/list_share.php", "memo":"share"
}
10976
{ "template":"1",
"name":"英语学习", "type":"small", "pic1":"2800", "pic2":"2800", "page_pic1":"2800", "page_pic2":"2800", "url":"https://www.funnyai.com/english/", "memo":"下载油猴插件配合FunnyEnglish使用效果更佳"
}
10533
{ "template":"1",
"name":"笔画查询", "type":"small", "pic1":"2781", "pic2":"2781", "page_pic1":"2781", "page_pic2":"2781", "url":"http://ask.mathfan.com/funnyai/bihua.php?w=%E6%B0%B8", "memo":"笔画查询"
}
10484
{ "template":"Q",
"name":"微信文章抓取", "type":"small", "pic1":"2770", "pic2":"2770", "page_pic1":"2770", "page_pic2":"2770", "url":"http://52.80.26.75:3000/", "memo":"微信文章抓取"
}
10196
10192
{ "template":"1",
"name":"世界美景", "type":"small", "pic1":"2559", "pic2":"2559", "page_pic1":"2558", "page_pic2":"2558", "url":"http://www.mapcrunch.com/", "memo":"世界美景"
}
9747
其他
9175
$
5952
$
7514
$
6300
$
8264
$
8628
  • 京东的白条手续费0.5%
  • 比信用卡还低
8579
$
8417
输入代码:

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7085