code stringlengths 1 1.05M | repo_name stringlengths 6 83 | path stringlengths 3 242 | language stringclasses 222
values | license stringclasses 20
values | size int64 1 1.05M |
|---|---|---|---|---|---|
import buildURL from '../helpers/buildURL'
import buildFullPath from '../core/buildFullPath'
import settle from '../core/settle'
import {isUndefined} from "../utils"
/**
* 返回可选值存在的配置
* @param {Array} keys - 可选值数组
* @param {Object} config2 - 配置
* @return {{}} - 存在的配置项
*/
const mergeKeys = (keys, config2) => {
le... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/adapters/index.js | JavaScript | unknown | 3,884 |
'use strict'
function InterceptorManager() {
this.handlers = []
}
/**
* Add a new interceptor to the stack
*
* @param {Function} fulfilled The function to handle `then` for a `Promise`
* @param {Function} rejected The function to handle `reject` for a `Promise`
*
* @return {Number} An ID used to remove inter... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/core/InterceptorManager.js | JavaScript | unknown | 1,174 |
/**
* @Class Request
* @description luch-request http请求插件
* @Author lu-ch
* @Email webwork.s@qq.com
* 文档: https://www.quanzhan.co/luch-request/
* github: https://github.com/lei-mu/luch-request
* DCloud: http://ext.dcloud.net.cn/plugin?id=392
*/
import dispatchRequest from './dispatchRequest'
import Intercepto... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/core/Request.js | JavaScript | unknown | 5,371 |
'use strict'
import isAbsoluteURL from '../helpers/isAbsoluteURL'
import combineURLs from '../helpers/combineURLs'
/**
* Creates a new URL by combining the baseURL with the requestedURL,
* only when the requestedURL is not already an absolute URL.
* If the requestURL is absolute, this function returns the requeste... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/core/buildFullPath.js | JavaScript | unknown | 681 |
/**
* 默认的全局配置
*/
export default {
baseURL: '',
header: {},
method: 'GET',
dataType: 'json',
paramsSerializer: null,
// #ifndef MP-ALIPAY
responseType: 'text',
// #endif
custom: {},
// #ifdef H5 || APP-PLUS || MP-WEIXIN || MP-ALIPAY || MP-TOUTIAO || MP-KUAISHOU
timeout: 60000,
// #endif
// ... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/core/defaults.js | JavaScript | unknown | 653 |
import adapter from '../adapters/index'
export default (config) => {
return adapter(config)
}
| 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/core/dispatchRequest.js | JavaScript | unknown | 98 |
import {deepMerge, isUndefined} from '../utils'
/**
* 合并局部配置优先的配置，如果局部有该配置项则用局部，如果全局有该配置项则用全局
* @param {Array} keys - 配置项
* @param {Object} globalsConfig - 当前的全局配置
* @param {Object} config2 - 局部配置
* @return {{}}
*/
const mergeKeys = (keys, globalsConfig, config2) => {
let config = {}
keys.forEach(prop => {
... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/core/mergeConfig.js | JavaScript | unknown | 3,526 |
/**
* Resolve or reject a Promise based on response status.
*
* @param {Function} resolve A function that resolves the promise.
* @param {Function} reject A function that rejects the promise.
* @param {object} response The response.
*/
export default function settle(resolve, reject, response) {
const validateSt... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/core/settle.js | JavaScript | unknown | 518 |
'use strict'
import * as utils from './../utils'
function encode(val) {
return encodeURIComponent(val).replace(/%40/gi, '@').replace(/%3A/gi, ':').replace(/%24/g, '$').replace(/%2C/gi, ',').replace(/%20/g, '+').replace(/%5B/gi, '[').replace(/%5D/gi, ']')
}
/**
* Build a URL by appending params to the end
*
* @p... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/helpers/buildURL.js | JavaScript | unknown | 1,614 |
'use strict'
/**
* Creates a new URL by combining the specified URLs
*
* @param {string} baseURL The base URL
* @param {string} relativeURL The relative URL
* @returns {string} The combined URL
*/
export default function combineURLs(baseURL, relativeURL) {
return relativeURL
? baseURL.replace(/\/+$/, '') +... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/helpers/combineURLs.js | JavaScript | unknown | 375 |
'use strict'
/**
* Determines whether the specified URL is absolute
*
* @param {string} url The URL to test
* @returns {boolean} True if the specified URL is absolute, otherwise false
*/
export default function isAbsoluteURL(url) {
// A URL is considered absolute if it begins with "<scheme>://" or "//" (protoco... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/helpers/isAbsoluteURL.js | JavaScript | unknown | 556 |
import Request from './core/Request'
export default Request
| 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/index.js | JavaScript | unknown | 60 |
/* eslint-disable */
var clone = (function() {
'use strict';
function _instanceof(obj, type) {
return type != null && obj instanceof type;
}
var nativeMap;
try {
nativeMap = Map;
} catch(_) {
// maybe a reference error because no `Map`. Give it a dummy value that no
// value will ever be a... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/utils/clone.js | JavaScript | unknown | 8,184 |
'use strict'
// utils is a library of generic helper functions non-specific to axios
var toString = Object.prototype.toString
/**
* Determine if a value is an Array
*
* @param {Object} val The value to test
* @returns {boolean} True if value is an Array, otherwise false
*/
export function isArray (val) {
retu... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/luch-request/utils.js | JavaScript | unknown | 3,327 |
export default {
props: {
lang: String,
sessionFrom: String,
sendMessageTitle: String,
sendMessagePath: String,
sendMessageImg: String,
showMessageCard: Boolean,
appParameter: String,
formType: String,
openType: String
}
}
| 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/mixin/button.js | JavaScript | unknown | 303 |
import * as index from '../function/index.js';
import * as test from '../function/test.js';
import route from '../util/route.js';
import debounce from '../function/debounce.js';
import throttle from '../function/throttle.js';
export default {
// 定义每个组件都可能需要用到的外部样式以及类名
props: {
// 每个组件都有的父组件传递的样式，可以为字符串或者对象形式
cust... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/mixin/mixin.js | JavaScript | unknown | 5,703 |
export default {
// #ifdef MP-WEIXIN
// 将自定义节点设置成虚拟的（去掉自定义组件包裹层），更加接近Vue组件的表现，能更好的使用flex属性
options: {
virtualHost: true
}
// #endif
} | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/mixin/mpMixin.js | JavaScript | unknown | 247 |
export default {
onLoad() {
// 设置默认的转发参数
uni.$uv.mpShare = {
title: '', // 默认为小程序名称
path: '', // 默认为当前页面路径
imageUrl: '' // 默认为当前页面的截图
}
},
onShareAppMessage() {
return uni.$uv.mpShare
}
} | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/mixin/mpShare.js | JavaScript | unknown | 310 |
export default {
props: {
openType: String
},
emits: ['getphonenumber','getuserinfo','error','opensetting','launchapp','contact','chooseavatar','addgroupapp','chooseaddress','subscribe','login','im'],
methods: {
onGetPhoneNumber(event) {
this.$emit('getphonenumber', event.detai... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/mixin/openType.js | JavaScript | unknown | 1,445 |
const MIN_DISTANCE = 10
function getDirection(x, y) {
if (x > y && x > MIN_DISTANCE) {
return 'horizontal'
}
if (y > x && y > MIN_DISTANCE) {
return 'vertical'
}
return ''
}
export default {
methods: {
getTouchPoint(e) {
if (!e) {
return {
... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/mixin/touch.js | JavaScript | unknown | 1,657 |
var __getOwnPropNames = Object.getOwnPropertyNames;
var __commonJS = (cb, mod) => function __require() {
return mod || (0, cb[__getOwnPropNames(cb)[0]])((mod = { exports: {} }).exports, mod), mod.exports;
};
var require_dayjs_min = __commonJS({
"uvuidayjs"(exports, module) {
!function(t, e) {
"object" ==... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/util/dayjs.js | JavaScript | unknown | 11,038 |
/**
* 路由跳转方法，该方法相对于直接使用uni.xxx的好处是使用更加简单快捷
* 并且带有路由拦截功能
*/
import { queryParams, deepMerge, page } from '@/uni_modules/uv-ui-tools/libs/function/index.js'
class Router {
constructor() {
// 原始属性定义
this.config = {
type: 'navigateTo',
url: '',
delta: 1, // navigateBack页面后退时,回退的层数
params: {}, // 传递的参数
... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/libs/util/route.js | JavaScript | unknown | 3,957 |
// 此文件为uvUI的主题变量，这些变量目前只能通过uni.scss引入才有效，另外由于
// uni.scss中引入的样式会同时混入到全局样式文件和单独每一个页面的样式中，造成微信程序包太大，
// 故uni.scss只建议放scss变量名相关样式，其他的样式可以通过main.js或者App.vue引入
$uv-main-color: #303133;
$uv-content-color: #606266;
$uv-tips-color: #909193;
$uv-light-color: #c0c4cc;
$uv-border-color: #dadbde;
$uv-bg-color: #f3f4f6;
$uv-disabl... | 2301_77169380/AppruanjianApk | uni_modules/uv-ui-tools/theme.scss | SCSS | unknown | 1,174 |
<template>
<uv-popup ref="popup" @change="change">
<view class="video-view" v-if="show">
<video class="video" :src="getSec" :autoplay="autoplay"></video>
</view>
</uv-popup>
</template>
<script>
export default {
props: {
src: {
type: String,
default: ''
},
autoplay: {
type: Boolean,
... | 2301_77169380/AppruanjianApk | uni_modules/uv-upload/components/uv-preview-video/uv-preview-video.vue | Vue | unknown | 789 |
import { error } from '@/uni_modules/uv-ui-tools/libs/function/index.js'
export default {
watch: {
// 监听accept的变化，判断是否符合个平台要求
// 只有微信小程序才支持选择媒体，文件类型，所以这里做一个判断提示
accept: {
immediate: true,
handler(val) {
// #ifndef MP-WEIXIN
if (val === ... | 2301_77169380/AppruanjianApk | uni_modules/uv-upload/components/uv-upload/mixin.js | JavaScript | unknown | 836 |
export default {
props: {
// 接受的文件类型, 可选值为all media image file video
accept: {
type: String,
default: 'image'
},
// 图片或视频拾取模式，当accept为image类型时设置capture可选额外camera可以直接调起摄像头
capture: {
type: [String, Array],
default: () => ['album', 'camera']
},
// 当accept为video时生效，是否压缩视频，默认为true
compressed: ... | 2301_77169380/AppruanjianApk | uni_modules/uv-upload/components/uv-upload/props.js | JavaScript | unknown | 2,839 |
function pickExclude(obj, keys) {
// 某些情况下，type可能会为
if (!['[object Object]', '[object File]'].includes(Object.prototype.toString.call(obj))) {
return {}
}
return Object.keys(obj).reduce((prev, key) => {
if (!keys.includes(key)) {
prev[key] = obj[key]
}
return pre... | 2301_77169380/AppruanjianApk | uni_modules/uv-upload/components/uv-upload/utils.js | JavaScript | unknown | 4,031 |
<template>
<view class="uv-upload" :style="[$uv.addStyle(customStyle)]">
<view class="uv-upload__wrap">
<template v-if="previewImage">
<view class="uv-upload__wrap__preview" v-for="(item, index) in lists" :key="index">
<image
v-if="item.isImage || (item.type && item.type === 'image')"
:src=... | 2301_77169380/AppruanjianApk | uni_modules/uv-upload/components/uv-upload/uv-upload.vue | Vue | unknown | 18,306 |
export default {
props: {
// 列表数据
list: {
type: Array,
default: ()=>[]
},
// 从list元素对象中读取的键名，默认name
keyName: {
type: String,
default: 'name'
},
// 当前选中项
current: {
type: [Number, String],
default: 0
},
// 头部内容的高度
hdHeight: {
type: [Number, String],
default: 0
},
// 是否联... | 2301_77169380/AppruanjianApk | uni_modules/uv-vtabs/components/uv-vtabs/props.js | JavaScript | unknown | 1,570 |
<template>
<view
class="uv-vtabs"
:style="[vtabsStyle]"
>
<scroll-view
class="uv-vtabs__bar"
ref="uv-vtabs__bar"
:style="[getBarStyle]"
:scroll-y="barScrollable"
:scroll-x="scrollX"
:show-scrollbar="false"
:scroll-with-animation="true"
:scroll-top="barScrollTop"
:scroll-into-view="ba... | 2301_77169380/AppruanjianApk | uni_modules/uv-vtabs/components/uv-vtabs/uv-vtabs.vue | Vue | unknown | 14,374 |
<template>
<view
class="uv-vtabs-item"
:id="`content_${index}`"
ref="uv-vtabs-item"
>
<slot />
</view>
</template>
<script>
import mpMixin from '@/uni_modules/uv-ui-tools/libs/mixin/mpMixin.js';
import mixin from '@/uni_modules/uv-ui-tools/libs/mixin/mixin.js';
// #ifdef APP-NVUE
const dom = uni.... | 2301_77169380/AppruanjianApk | uni_modules/uv-vtabs/components/uv-vtabs-item/uv-vtabs-item.vue | Vue | unknown | 1,537 |
export default {
props: {
// 瀑布流数据
// #ifdef VUE2
value: {
type: Array,
default: () => []
},
// #endif
// #ifdef VUE3
modelValue: {
type: Array,
default: () => []
},
// #endif
// 数据的id值，根据id值对数据执行删除操作
// 如数据为：{id: 1, name: 'uv-ui'}，那么该值设置为id
idKey: {
type: String,
default: 'id... | 2301_77169380/AppruanjianApk | uni_modules/uv-waterfall/components/uv-waterfall/props.js | JavaScript | unknown | 1,377 |
<template>
<view class="uv-waterfall">
<!-- #ifndef APP-NVUE -->
<view class="uv-waterfall__gap_left" :style="[gapLeftStyle]"></view>
<template v-if="columnNum>=1">
<view id="uv-waterfall-1" class="uv-waterfall__column">
<slot name="list1"></slot>
</view>
</template>
<template v-if="columnNum>=2">
... | 2301_77169380/AppruanjianApk | uni_modules/uv-waterfall/components/uv-waterfall/uv-waterfall.vue | Vue | unknown | 8,927 |
# 8. (a)
college = read.csv("C:/Users/djsta/Desktop/College.csv")
# 8. (b)
fix(college)
rownames(college) = college[,1]
college = college[,-1]
fix(college)
# 8. (c)
# i.
summary(college)
# ii.
pairs(college[,2:11])
# iii.
library(car)
scatterplot(college$Outstate,as.factor(college$Private))
# iv.
Elite = rep("No", nrow... | 2301_76574743/tjjm-R | 实验1/applied.R | R | unknown | 5,416 |
# 10.
# (a)
library(MASS)
?Boston
dim(Boston)
# 506 rows, 14 columns
# 14 features, 506 housing values in Boston suburbs
fix(Boston)
# (b)
pairs(Boston)
# X correlates with: a, b, c
# crim: age, dis, rad, tax, ptratio
# zn: indus, nox, age, lstat
# indus: age, dis
# nox: age, dis
# dis: lstat
# lstat: medv
# (c)
plot... | 2301_76574743/tjjm-R | 实验1/p40-10.R | R | unknown | 2,118 |
library(ISLR)
summary(Carseats)
attach(Carseats)
lm.fit = lm(Sales~Price+Urban+US)
summary(lm.fit)
#10c.
#Sales = 13.04 + -0.05 Price + -0.02 UrbanYes + 1.20 USYes
#10d.
#10e.
lm.fit2 = lm(Sales ~ Price + US)
summary(lm.fit2)
#10f.
#10g.
confint(lm.fit2)
#10h.
plot(predict(lm.fit2), rstudent(lm.fit2))
par(mfrow=c(2,2))... | 2301_76574743/tjjm-R | 实验2/实验2-85-10.R | R | unknown | 336 |
\relax
\gdef \@abspage@last{1}
| 2301_76574743/tjjm-R | 实验3/实验2-P86-11/实验2-1.aux | TeX | unknown | 32 |
\documentclass[11pt]{ctexart}
\usepackage[top=2cm, bottom=2cm, left=2cm, right=2cm]{geometry}
\usepackage{algorithm}
\usepackage{algorithmicx}
\usepackage{algpseudocode}
\usepackage{amsmath}
\floatname{algorithm}{算法}
\renewcommand{\algorithmicrequire}{\textbf{输入:}}
\renewcommand{\algorithmicensure}{\te... | 2301_76574743/tjjm-R | 实验3/实验2-P86-11/实验2-1.tex | TeX | unknown | 1,394 |
<!DOCTYPE html>
<html>
<head><meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>实验2</title><script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.1.10/require.min.js"></script>
<style type="text/css">
pre { line-height: 125%; }
td.linenos .normal { ... | 2301_76574743/tjjm-R | 实验3/实验2.html | HTML | unknown | 585,182 |
# Chapter 3 Lab: Linear Regression
library(MASS)
library(ISLR)
# Simple Linear Regression
fix(Boston)
names(Boston)
lm.fit=lm(medv~lstat)
lm.fit=lm(medv~lstat,data=Boston)
attach(Boston)
lm.fit=lm(medv~lstat)
lm.fit
summary(lm.fit)
names(lm.fit)
coef(lm.fit)
confint(lm.fit)
predict(lm.fit,data.frame(lstat=(c(5,10,15... | 2301_76574743/tjjm-R | 线性回归.R | R | unknown | 1,718 |
# Chapter 2 Lab: Introduction to R
# Basic Commands
x <- c(1,3,2,5)
x
x = c(1,6,2)
x
y = c(1,4,3)
length(x)
length(y)
x+y
ls()
rm(x,y)
ls()
rm(list=ls())
?matrix
x=matrix(data=c(1,2,3,4), nrow=2, ncol=2)
x
x=matrix(c(1,2,3,4),2,2)
matrix(c(1,2,3,4),2,2,byrow=TRUE)
sqrt(x)
x^2
x=rnorm(50)
y=x+rnorm(50,mean=50,sd=.1)
c... | 2301_76574743/tjjm-R | 统计学习导论.R | R | unknown | 27,968 |
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="pandoc" />
<title>Chapter 10: Exercise 1</title>
<script src="data:application/x-javascript,%2F%2A%21%20jQuery%20v1%2E11%... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch10/1.html | HTML | unknown | 437,506 |
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="pandoc" />
<title>Chapter 10: Exercise 10</title>
<script src="data:application/x-javascript,%2F%2A%21%20jQuery%20v1%2E11... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch10/10.html | HTML | unknown | 495,555 |
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="pandoc" />
<title>Chapter 10: Exercise 11</title>
<script src="data:application/x-javascript,%2F%2A%21%20jQuery%20v1%2E11... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch10/11.html | HTML | unknown | 774,427 |
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="pandoc" />
<title>Chapter 10: Exercise 2</title>
<script src="data:application/x-javascript,%2F%2A%21%20jQuery%20v1%2E11%... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch10/2.html | HTML | unknown | 623,497 |
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="pandoc" />
<title>Chapter 10: Exercise 3</title>
<script src="data:application/x-javascript,%2F%2A%21%20jQuery%20v1%2E11%... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch10/3.html | HTML | unknown | 592,027 |
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="pandoc" />
<title>Chapter 10: Exercise 4</title>
<script src="data:application/x-javascript,%2F%2A%21%20jQuery%20v1%2E11%... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch10/4.html | HTML | unknown | 436,734 |
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
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<title>Chapter 10: Exercise 5</title>
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<title>Chapter 10: Exercise 6</title>
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<title>Chapter 10: Exercise 7</title>
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<title>Chapter 10: Exercise 8</title>
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<title>Chapter 10: Exercise 9</title>
<script src="data:application/x-javascript,%2F%2A%21%20jQuery%20v1%2E11%... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch10/9.html | HTML | unknown | 832,178 |
# Chapter 10 Lab 1: Principal Components Analysis
states=row.names(USArrests)
states
names(USArrests)
apply(USArrests, 2, mean)
apply(USArrests, 2, var)
pr.out=prcomp(USArrests, scale=TRUE)
names(pr.out)
pr.out$center
pr.out$scale
pr.out$rotation
dim(pr.out$x)
biplot(pr.out, scale=0)
pr.out$rotation=-pr.out$rotation
p... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch10/lab.R | R | unknown | 3,558 |
# 8. (a)
college = read.csv("C:/Users/djsta/Desktop/College.csv")
# 8. (b)
fix(college)
rownames(college) = college[,1]
college = college[,-1]
fix(college)
# 8. (c)
# i.
summary(college)
# ii.
pairs(college[,2:11])
# iii.
library(car)
scatterplot(college$Outstate,as.factor(college$Private))
# iv.
Elite = rep("No", nrow... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch2/applied.R | R | unknown | 5,416 |
# Chapter 2 Lab: Introduction to R
# Basic Commands
x <- c(1,3,2,5)
x
x = c(1,6,2)
x
y = c(1,4,3)
length(x)
length(y)
x+y
ls()
rm(x,y)
ls()
rm(list=ls())
?matrix
x=matrix(data=c(1,2,3,4), nrow=2, ncol=2)
x
x=matrix(c(1,2,3,4),2,2)
matrix(c(1,2,3,4),2,2,byrow=TRUE)
sqrt(x)
x^2
x=rnorm(50)
y=x+rnorm(50,mean=50,sd=.1)
c... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch2/lab.R | R | unknown | 1,900 |
set.seed(11)
## create a data frame of 3 columns and 10,000 rows filled with
## random uniform data
cube <- data.frame(matrix(runif(3*10000, min = 0, 1), ncol=3))
## get the max and min for each row
cube[, "max"] <- apply(cube, MARGIN = 1, max)
cube[, "min"] <- apply(cube, MARGIN = 1, min)
## add a column to mark... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch2/notes/Hypercube-boundary-experiment.R | R | unknown | 1,407 |
# This script creates plots illustrating the curse of dimensionality
# Choose points, randomly distributed
n <- 3000 # number of points
p <- 2 # number of dimensions
x <- matrix(runif(n*p), ncol=p)
Fringe <- function(z){
# Determine if z lies within 0.05 distance from the boundary
# z is a vector of length p
... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch2/notes/dimension.R | R | unknown | 661 |
# Graph the technique described by Trevor Hastie in Lecture 2.1
set.seed(37)
# Generate sample data
n <- 20
x0 <- sort(runif(n, min=0, max=10))
y0 <- 0.5 * x0 + rnorm(n, sd=0.2)
Estimate <- function(x, neighborhood=2){
# Estimates x as the average value of y within neighborhood
# Note this implementation is ... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch2/notes/neighbor.R | R | unknown | 573 |
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<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta http-equiv="x-ua-compatible" content="IE=9" >
<title>Chapter 3, Problem 7</title>
<style type="text/css">
body, td {
font-family: sans-serif;
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# Chapter 3 Lab: Linear Regression
library(MASS)
library(ISLR)
# Simple Linear Regression
fix(Boston)
names(Boston)
lm.fit=lm(medv~lstat)
lm.fit=lm(medv~lstat,data=Boston)
attach(Boston)
lm.fit=lm(medv~lstat)
lm.fit
summary(lm.fit)
names(lm.fit)
coef(lm.fit)
confint(lm.fit)
predict(lm.fit,data.frame(lstat=(c(5,10,15... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch3/lab.R | R | unknown | 1,688 |
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body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
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margin: 8px;
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font-size: 12px;
margin: 8px;
}
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body, td {
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font-size: 12px;
margin: 8px;
}
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<style type="text/css">
body, td {
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background-color: white;
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body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
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body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
tt, code, pre {
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<title>6</title>
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<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="pandoc" />
<title></title>
<script src="data:application/x-javascript,%2F%2A%21%20jQuery%20v1%2E11%2E0%20%7C%20%28c%29%20... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch4/7.html | HTML | unknown | 646,505 |
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<style type="text/css">
body, td {
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background-color: white;
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<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>9</title>
<style type="text/css">
body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
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# Chapter 4 Lab: Logistic Regression, LDA, QDA, and KNN
# The Stock Market Data
library(ISLR)
names(Smarket)
dim(Smarket)
summary(Smarket)
pairs(Smarket)
cor(Smarket)
cor(Smarket[,-9])
attach(Smarket)
plot(Volume)
# Logistic Regression
glm.fit=glm(Direction~Lag1+Lag2+Lag3+Lag4+Lag5+Volume,data=Smarket,family=binomi... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch4/lab.R | R | unknown | 3,213 |
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<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Chapter 5: Exercise 1</title>
<style type="text/css">
body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Chapter 5: Exercise 2</title>
<style type="text/css">
body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta http-equiv="x-ua-compatible" content="IE=9" >
<title>Chapter 5: Exercise 3</title>
<style type="text/css">
body, td {
font-family: sans-serif;
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Chapter 5: Exercise 4</title>
<style type="text/css">
body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta http-equiv="x-ua-compatible" content="IE=9" >
<title>Chapter 5: Exercise 5</title>
<style type="text/css">
body, td {
font-family: sans-serif;
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Chapter 5: Exercise 6</title>
<style type="text/css">
body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
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<!DOCTYPE html>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Chapter 5: Exercise 7</title>
<style type="text/css">
body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta http-equiv="x-ua-compatible" content="IE=9" >
<title>Chapter 5: Exercise 8</title>
<style type="text/css">
body, td {
font-family: sans-serif;
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<!DOCTYPE html>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Chapter 5: Exercise 9</title>
<style type="text/css">
body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
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# Chaper 5 Lab: Cross-Validation and the Bootstrap
# The Validation Set Approach
library(ISLR)
set.seed(1)
train=sample(392,196)
lm.fit=lm(mpg~horsepower,data=Auto,subset=train)
attach(Auto)
mean((mpg-predict(lm.fit,Auto))[-train]^2)
lm.fit2=lm(mpg~poly(horsepower,2),data=Auto,subset=train)
mean((mpg-predict(lm.fit2,... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch5/lab.R | R | unknown | 2,094 |
<!DOCTYPE html>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Chapter 6: Exercise 1</title>
<style type="text/css">
body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta http-equiv="x-ua-compatible" content="IE=9" >
<title>Chapter 6: Exercise 10 </title>
<style type="text/css">
body, td {
font-family: sans-serif;
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<head>
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<title>Chapter 6: Exercise 11</title>
<style type="text/css">
body, td {
font-family: sans-serif;
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<!DOCTYPE html>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Chapter 6: Exercise 2</title>
<style type="text/css">
body, td {
font-family: sans-serif;
background-color: white;
font-size: 12px;
margin: 8px;
}
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Chapter 6: Exercise 3</title>
<base target="_blank"/>
<style ... | 2301_76574743/tjjm-R | 统计学习导论_基于R应用习题答案/ch6/3.html | HTML | unknown | 3,826 |
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Chapter 6: Exercise 4</title>
<base target="_blank"/>
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<!DOCTYPE html>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta http-equiv="x-ua-compatible" content="IE=9" >
<title>Chapter 6: Exercise 5</title>
<style type="text/css">
body, td {
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# Chapter 6 Lab 1: Subset Selection Methods
# Best Subset Selection
library(ISLR)
fix(Hitters)
names(Hitters)
dim(Hitters)
sum(is.na(Hitters$Salary))
Hitters=na.omit(Hitters)
dim(Hitters)
sum(is.na(Hitters))
library(leaps)
regfit.full=regsubsets(Salary~.,Hitters)
summary(regfit.full)
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<title>Chapter 7: Exercise 1</title>
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<title>Chapter 7: Exercise 11</title>
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<title>Chapter 7: Exercise 12</title>
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