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>Excel建模决策资金分配,哪些项目应优先启动?
Excel建模决策资金分配,哪些项目应优先启动?
2026-03-30 04:07:11
Excel建模决策资金分配,哪些项目应优先启动?
通常大型公司每年都会有很多新项目需求,但是受限于资金和人力,不可能把所有项目都上马。这种情况下就需要数据分析师进行测算,在可承担的资金和人力投入下,启动哪些项目会带来最大回报?
上图中,
B7:B26
是某大型软件公司的20 个候选项目;A7:A26
通过0和1来标识是否启动这一项目,0=不启动,1=启动,目前阶段我们只需随机输入0和1;
C7:C26是这些项目的NPV (
这里以
NPV作为衡量投资回报的具体指标),
NPV越高代表回报越好。
有关NPV的概念可看本号文章
在Excel中使用NPV来衡量投资收益
。
我们将使用规划求解来寻找回报最大化的项目组合,所以接下来我们需要找到
目标,可变单元格
和
约束条件:
目标:
毫无疑问是要回报最大化,即
C7:C26之和最大化。我们在B2单元格输入
=SUMPRODUCT(
A7:A26
,
C7:C26
)
来计算NPV总和。
可变单元格:
我们通过改变
是否启动
的标识,也即改变
A7:A26的值(在
0和1之间选择
)来寻找最优组合。
约束条件
:
E4:G4是公司第1-3年的可用项目资金;H4:J4是
公司
第
1-3年的可用人力;所有启动项目的总资金和总人力不能超过这一限制。
在E2单元格输入
=SUMPRODUCT(A7:A26,E7:E26)
来计算第一年的资金需求总和,同理在F2和G2计算第2-3年的资金需求总和,在H2:J2中计算第1-3年的人力需求总和。
开始求解,找到
数据
选项卡---规划求解,点开。
设置目标
:
选B2, 最大值;
可变单元格
:
选
A7:A26
;
约束条件
:
1,
$E$2:$J$2<=
$E$4:$J$4,项目总资金和总人力<=可用资金及人力
。
2,
A7:A26=二进制
,这样
是否启动
里面只能在1和0之间选择。
求解方法
:选单纯线性规划。运行过后,规划求解通过改变
A7:A26的值
找到了让B2总NPV最大化的项目组合。
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CONNECT:[ UseTime:0.000604s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000936s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000341s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000313s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000508s ]
SELECT * FROM `set` [ RunTime:0.000203s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000511s ]
SELECT * FROM `article` WHERE `id` = 470954 LIMIT 1 [ RunTime:0.002644s ]
UPDATE `article` SET `lasttime` = 1775799815 WHERE `id` = 470954 [ RunTime:0.007590s ]
SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000248s ]
SELECT * FROM `article` WHERE `id` < 470954 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001824s ]
SELECT * FROM `article` WHERE `id` > 470954 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000409s ]
SELECT * FROM `article` WHERE `id` < 470954 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000793s ]
SELECT * FROM `article` WHERE `id` < 470954 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.006449s ]
SELECT * FROM `article` WHERE `id` < 470954 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000604s ]
0.098639s