array(35) { ["id"]=> string(3) "519" ["type"]=> string(6) "course" ["title"]=> string(18) "商品销量预测" ["subtitle"]=> string(0) "" ["creator"]=> array(6) { ["id"]=> string(2) "11" ["nickname"]=> string(10) "postmaster" ["title"]=> string(5) "admin" ["uuid"]=> string(40) "ca2137471fb9e7cc3000df34f488ba812fafec6c" ["destroyed"]=> string(1) "0" ["avatar"]=> array(3) { ["small"]=> string(73) "http://www.chinadatacase.com/files/user/2022/03-24/16401605dcd4404091.jpg" ["middle"]=> string(73) "http://www.chinadatacase.com/files/user/2022/03-24/16401605d4f7462685.jpg" ["large"]=> string(73) "http://www.chinadatacase.com/files/user/2022/03-24/16401605284c255402.jpg" } } ["showable"]=> string(1) "1" ["buyable"]=> string(1) "1" ["summary"]=> string(503) "

1、问题及数据集简介 问题：根据以往在每件商品的广告费用和实际销量，预测未来商品的销量。 数据集简介： 数据共4列200行，每一行为一个特定的商品，前3列为输入特征，最后一列为输出特征。 输入特征： TV：该商品用于电视上的广告费用（以千元为单位，下同） Radio：在广播媒体上投资的广告费用 Newspaper：用于报纸媒体上的广告费用 输出特征： Sales：该商品的销量

" ["minPrice"]=> string(4) "0.00" ["maxPrice"]=> string(4) "0.00" ["discountId"]=> string(1) "0" ["images"]=> array(3) { ["large"]=> string(75) "http://www.chinadatacase.com/files/course/2023/10-10/154352840fa3927122.png" ["middle"]=> string(75) "http://www.chinadatacase.com/files/course/2023/10-10/15435284194a770857.png" ["small"]=> string(75) "http://www.chinadatacase.com/files/course/2023/10-10/1543528420a5630069.png" } ["ratingNum"]=> string(1) "0" ["rating"]=> string(1) "0" ["hitNum"]=> string(3) "500" ["hotSeq"]=> string(1) "0" ["maxPriceObj"]=> array(2) { ["currency"]=> string(3) "RMB" ["amount"]=> string(4) "0.00" } ["minPriceObj"]=> array(2) { ["currency"]=> string(3) "RMB" ["amount"]=> string(4) "0.00" } ["minDisplayPrice"]=> string(4) "0.00" ["maxDisplayPrice"]=> string(4) "0.00" ["minDisplayPriceObj"]=> array(2) { ["currency"]=> string(3) "RMB" ["amount"]=> string(4) "0.00" } ["maxDisplayPriceObj"]=> array(2) { ["currency"]=> string(3) "RMB" ["amount"]=> string(4) "0.00" } ["canManage"]=> bool(false) ["peopleShowNum"]=> string(1) "0" ["isMember"]=> bool(false) ["status"]=> string(9) "published" ["orgId"]=> string(1) "1" ["orgCode"]=> string(2) "1." ["recommendWeight"]=> string(1) "0" ["recommendedTime"]=> string(1) "0" ["createdTime"]=> string(25) "2022-03-24T16:23:47+08:00" ["updatedTime"]=> string(25) "2025-12-03T21:04:45+08:00" ["product"]=> array(7) { ["id"]=> string(3) "519" ["targetType"]=> string(6) "course" ["title"]=> string(18) "商品销量预测" ["owner"]=> string(2) "11" ["createdTime"]=> string(10) "1648110227" ["updatedTime"]=> string(10) "1696923834" ["target"]=> array(17) { ["id"]=> string(3) "553" ["type"]=> string(6) "normal" ["title"]=> string(18) "商品销量预测" ["subtitle"]=> string(0) "" ["summary"]=> string(503) "

1、问题及数据集简介 问题：根据以往在每件商品的广告费用和实际销量，预测未来商品的销量。 数据集简介： 数据共4列200行，每一行为一个特定的商品，前3列为输入特征，最后一列为输出特征。 输入特征： TV：该商品用于电视上的广告费用（以千元为单位，下同） Radio：在广播媒体上投资的广告费用 Newspaper：用于报纸媒体上的广告费用 输出特征： Sales：该商品的销量

" ["cover"]=> array(3) { ["large"]=> string(75) "http://www.chinadatacase.com/files/course/2023/10-10/154352840fa3927122.png" ["middle"]=> string(75) "http://www.chinadatacase.com/files/course/2023/10-10/15435284194a770857.png" ["small"]=> string(75) "http://www.chinadatacase.com/files/course/2023/10-10/1543528420a5630069.png" } ["status"]=> string(9) "published" ["studentNum"]=> string(1) "0" ["discountType"]=> string(8) "discount" ["discount"]=> string(2) "10" ["minCoursePrice"]=> string(4) "0.00" ["maxCoursePrice"]=> string(4) "0.00" ["defaultCourseId"]=> string(3) "554" ["productId"]=> string(3) "519" ["goodsId"]=> string(3) "519" ["minCoursePrice2"]=> array(2) { ["currency"]=> string(3) "RMB" ["amount"]=> string(4) "0.00" } ["maxCoursePrice2"]=> array(2) { ["currency"]=> string(3) "RMB" ["amount"]=> string(4) "0.00" } } } ["extensions"]=> array(3) { [0]=> string(8) "teachers" [1]=> string(14) "recommendGoods" [2]=> string(10) "isFavorite" } ["specs"]=> array(1) { [0]=> array(26) { ["id"]=> string(3) "520" ["goodsId"]=> string(3) "519" ["targetId"]=> string(3) "554" ["title"]=> string(0) "" ["seq"]=> string(1) "1" ["status"]=> string(9) "published" ["price"]=> string(4) "0.00" ["coinPrice"]=> string(4) "0.00" ["usageMode"]=> string(7) "forever" ["usageDays"]=> string(1) "0" ["usageStartTime"]=> string(1) "0" ["usageEndTime"]=> string(1) "0" ["buyableStartTime"]=> string(1) "0" ["buyableEndTime"]=> string(1) "0" ["buyableMode"]=> NULL ["buyable"]=> string(1) "0" ["maxJoinNum"]=> string(1) "0" ["services"]=> array(0) { } ["priceObj"]=> array(2) { ["currency"]=> string(3) "RMB" ["amount"]=> string(4) "0.00" } ["displayPrice"]=> string(4) "0.00" ["displayPriceObj"]=> array(2) { ["currency"]=> string(3) "RMB" ["amount"]=> string(4) "0.00" } ["isMember"]=> bool(false) ["access"]=> array(2) { ["code"]=> string(18) "course.not_buyable" ["msg"]=> string(33) "教学计划(#554)未开放购买" } ["hasCertificate"]=> bool(false) ["learnUrl"]=> string(42) "http://www.chinadatacase.com/my/course/554" ["teachers"]=> array(1) { [0]=> array(6) { ["id"]=> string(1) "8" ["nickname"]=> string(7) "mingzhu" ["title"]=> string(6) "教师" ["uuid"]=> string(40) "66f930e6f2d349b45f48f24e125e05d3a92fb8d1" ["destroyed"]=> string(1) "0" ["avatar"]=> array(3) { ["small"]=> string(76) "http://www.chinadatacase.com/files/default/2021/11-26/09105602405b816729.png" ["middle"]=> string(76) "http://www.chinadatacase.com/files/default/2021/11-26/091056023132077454.png" ["large"]=> string(76) "http://www.chinadatacase.com/files/default/2021/11-26/0910560220f8152273.png" } } } } } } 商品销量预测 - 中国经管实验教学案例平台

中国经管实验教学案例平台

www.chinadatacase.com