Linuxer, ex IBMer. GNU https://hmchzb19.github.io/
全部博文(297)
发布时间:2018-07-08 21:10:28
multivariate regression. (multiple regression)1. What if more than 1 variable influence the one you are interested in ?Example: predicting a price for a car based on its many attributes(body style, brand, mileage, etc.) 例如有多个因素都会影响车辆的价格,车型,品牌,公里数,车门数。#still.........【阅读全文】
发布时间:2018-07-04 18:20:13
sublime 3 支持中文是通过一个package 叫converttoutf8, 然后安装一个codec33的package.1. control+~ :输入命令 可以参考 https://packagecontrol.io/installation#st3点击(此处)折叠或打开import urllib.request,os,hashlib; h = '6f4c264a24d933ce70df5dedcf1dcaee' + 'ebe013e.........【阅读全文】
发布时间:2018-06-21 14:41:33
polynomial regressionNot all relationships are linear. Linear formula: y=mx+b This is a "first order" or "first degree" polynomial , as the power of x is 1. Second order polynomial: y=ax**2 + bx + cThird order polynomial: y = ax**3 + bx**2 + cx + dHigher orders polynomial produce more c.........【阅读全文】
发布时间:2018-06-08 11:17:28
今天是Predictive Model (预测模型)Linear Regression: AKA likelihood estimation.Fit a line to a data set of observations.Use this line to predict unobserved values.其实Linear Regression 画出来就是一条直线。尽量靠近所有的数据点。 Linear Regression 可以用多种算法来做。 1- Linear Regression use .........【阅读全文】
发布时间:2018-05-31 15:12:35
conditional probability and Bayes' Theorem 这两个理论看的我头晕。1. conditional probabilityif I have two events that depend on each other, what's the probability that both will occur.Notation: P(A,B) is the probability of A and B both occuring independent of each other.P(B|A): probability of.........【阅读全文】
fireboyz20052010-11-10 18:27
HI, 看到你"http://bbs.chinaunix.net/viewthread.php?tid=1806065"
这里的提问,你是不是在看一本叫《Shell脚本专家指南》的书?我也在阅读,我新手,不如大家交流一下,看到不明白也可以大家一起研究研究。
我的qq是:369035906
或gtalk:jiale.chan@gmail.com