实验8数据统计分析指导书.docx
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实验8数据统计分析指导书
《Matlab程序设计》实验指导书
实验八
一实验目的
掌握数据统计和分析的方法(最值、求和与求积、求平均值和中值、累加和与累加积、标准方差与相关系数、矩阵的排序等函数的应用);
二实验内容
三实验成果
1、提交电子版实验报告1份(必须包括实验步骤和相应图形成果)、相应的m程序文件文件;
2、实验报告和成果文件名格式:
班级_学号_姓名.doc、程序文件*.m
3、补充说明:
严禁抄袭,一经发现成绩为0
1.
A=randn(10,5)
b=mean(reshape(A,1,50))
c=std(A)
d=max(reshape(A,1,50))
e=min(reshape(A,1,50))
f=sum(A)
g=sum(reshape(A,1,50))
h=sort(A)
i=sortrows(A,2)
A=
1.1418-0.95302.0941-0.1948-0.5108
1.55190.77820.08020.07550.2492
1.3836-0.0063-0.9373-0.52660.3692
-0.75810.52450.6357-0.68550.1792
0.44271.36431.6820-0.2684-0.0373
0.91110.48200.5936-1.1883-1.6033
-1.0741-0.78710.79020.24860.3394
0.20180.75200.10530.1025-0.1311
0.7629-0.1669-0.1586-0.04100.4852
-1.2882-0.81620.8709-2.24760.5988
b=
0.1083
c=
1.03230.79050.87950.75770.6489
d=
2.0941
e=
-2.2476
f=
3.27541.17155.7561-4.7257-0.0616
g=
5.4157
h=
-1.2882-0.9530-0.9373-2.2476-1.6033
-1.0741-0.8162-0.1586-1.1883-0.5108
-0.7581-0.78710.0802-0.6855-0.1311
0.2018-0.16690.1053-0.5266-0.0373
0.4427-0.00630.5936-0.26840.1792
0.76290.48200.6357-0.19480.2492
0.91110.52450.7902-0.04100.3394
1.14180.75200.87090.07550.3692
1.38360.77821.68200.10250.4852
1.55191.36432.09410.24860.5988
i=
1.1418-0.95302.0941-0.1948-0.5108
-1.2882-0.81620.8709-2.24760.5988
-1.0741-0.78710.79020.24860.3394
0.7629-0.1669-0.1586-0.04100.4852
1.3836-0.0063-0.9373-0.52660.3692
0.91110.48200.5936-1.1883-1.6033
-0.75810.52450.6357-0.68550.1792
0.20180.75200.10530.1025-0.1311
1.55190.77820.08020.07550.2492
0.44271.36431.6820-0.2684-0.0373
2.
A=round(rand(100,5)*100)
[x1,y1]=max(A,[],1);
[y2,x2]=min(A,[],1);
[y1;x1]
[y2;x2]
sum(A,1)/100
std(A,0,1)
M=sum(A,2);
[x3,y3]=max(M);
[x4,y4]=min(M);
[y3;x3]
[y4;x4]
[zcj,xsxh]=sort(M,'descend')
A=
19051203
2994716779
82345293100
9944613411
247975962
8215826213
621432031
5653599813
2473139022
8240256940
2636804414
7529677024
668716193
2163563039
6024458651
609890119
666428292
182371016
6468484084
1767983388
5413929419
622568499
6926652671
681277487
88711148
18505750
3118547429
7831816
3173456426
9354202519
6828791492
737626512
712951
189898237
2387769370
5225913189
4657762759
7016385416
5859331632
5133502123
76656221
1986776540
385778565
289848239
7779806777
3115473197
6483203171
9919587278
5064679524
9567681320
837794726
9238771371
1144741798
8148879164
9161991455
1618506285
120632780
7679792267
7251457167
6521525582
7510179497
6616133349
8841227082
2741119464
425145831
2194468866
415797536
838283894
8531227349
341791169
479019667
9132592051
2373547822
8641656173
664031167
895123396
4917422921
9952309716
3764679564
53294230
1884349634
5080566828
42701254
664617609
678283941
9682562282
1919491887
11459582
57123173
9731487985
28853273
8784798896
333193566
5288917274
1948929734
725611688
2562771635
936695316
146281372
5269923696
ans=
4165583
99989998100
ans=
10000
15726780
ans=
50.890047.510053.060047.660049.3500
ans=
29.996328.197928.646931.490031.5369
ans=
92
434
ans=
18
74
zcj=
434
380
377
371
361
349
345
340
340
338
327
326
326
323
320
315
308
306
304
303
303
303
301
300
298
294
293
291
291
290
288
287
287
282
281
279
275
272
269
268
267
266
266
265
265
263
262
260
257
256
254
253
250
249
248
244
243
239
237
233
232
231
222
221
218
215
211
209
209
206
206
206
200
198
198
194
193
192
189
183
183
182
178
177
172
169
167
165
161
160
158
156
155
155
152
150
139
133
106
74
xsxh=
92
45
94
54
3
35
100
2
90
86
79
48
74
58
55
66
13
59
19
20
22
63
71
49
34
78
61
52
98
95
36
42
51
82
31
8
60
21
47
16
5
15
81
12
37
50
76
69
23
10
6
72
73
4
24
53
43
29
64
96
99
56
9
46
91
97
30
14
67
27
44
68
11
39
84
38
26
87
17
32
85
57
40
62
80
28
70
1
88
75
77
93
25
89
41
65
7
83
33
18
>>