SAS ??

1
SAS ??

• SAS ?????(?)
• INSIGHT,Analyst,Program ??????????
• ???? SAS ??(??????????,????????.???,??????,??Work
  )
• SAS ??????(??8???,??????)

2
SAS ????

• ???????(????????????)
• SAS ??????(?????,????)

data exam / ?????????????/ input name
sex math computer cards ???? ? 92
98 ????? ? 89 95 ????? 86 90 Gaga ? 25 82 ?? ? 98
83 ?????? proc print data exam proc means
data exam mean var math computer run
3
SAS ????

• ?????

libname lt????gt (lt??gt lt??gt ) ?libname
mylib d\sasdata\

• ???????????

libname _ALL_ list

• ??????

/????????/ libname lt????gt clear
/??????????,????????/ libname _ALL_ clear
4
SAS ????

• ???

data lt????gt /????????,????Work?????/
input lt???1gt lt???2gt lt???kgt
/????/ cards d11 d12 d1k d21 d22
d2k run
/?cards??????????,???input?????????_at__at_/ data
lt????gt input lt???1gt lt???2gt
lt???kgt _at__at_ cards d11 d12 d1k d21
d22 d2k run
5
SAS ????

• ???

proc lt???gt dadalt?????gtlt??gt
lt????gt/lt??gt lt????gt/lt??gt run
/?????????var,??????/ var lt???1gt lt???2gt
lt???kgt /?????????by,??????,????sort??/ by
lt???1gt lt???2gt /?????????class,??????,??????
/ class lt???1gt lt???2gt
6
SAS ??????

• ???????

/ ANOVA??/ proc anova data lt???gt
class lt?????gt /??,???model??/
model lt????gtlt??????gt/lt????gt /???????????/
means lt????gtlt??????gt/lt??gt
/???????????????,?????????/ run ???? 1.
?????????? 2. ??????????????? 3. ??????
7
SAS ??????

• ???????

/ ??/ data exam input hangye tousu
_at__at_ cards ?? 57 ?? 66 ?? 49 ?? 40 ??
44 ?? 68 ?? 39 ?? 29 ?? 45 ?? 56 ?? 31 ?? 49 ??
21 ?? 34 ?? 40 ?? 44 ?? 51 ?? 65 ?? 77 ??
58 proc anova data exam class
hangye model tousu hangye run
8
SAS ??????

• ??????

/ REG??/ proc reg data lt???gt/lt????gt
var lt????gt model
lt???gtlt????gt/lt??gt /??????????/
print lt????gt plot lty???x???gtlt??gt/lt
????gt /??????????,??????,????????,????????/ ru
n
9
SAS ??????

• ??????

/ REG???/ data sandian input y x1 x2
_at__at_ cards 6.2 215 136.5 7.5 250
136.5 4.8 180 136.5 5.1 250 138.5 4.6 180
138.5 4.6 215 138.5 2.8 180 140.5 3.1 215
140.5 4.3 250 140.5 4.9 215 138.5 4.1 215
138.5 proc reg data sandian var y
x1 x2 model yx1 x2 run
10
SAS ??????

• ???????REG

/ REG??/ proc reg data lt????gt/lt????gt
var lt????gt model
lt???gtlt????gt/lt??gt /??????????/
print lt????gt plot lty???x???gtlt??gt/lt
????gt /??????????,??????,????????,????????/ ru
n / ??????,???????
? data ???? set ????
?????????????? /
11
SAS ??????

• ???????REG

/ REG???/ data sandian input y x1 x2
_at__at_ cards 6.2 215 136.5 7.5 250
136.5 4.8 180 136.5 5.1 250 138.5 4.6 180
138.5 4.6 215 138.5 2.8 180 140.5 3.1 215
140.5 4.3 250 140.5 4.9 215 138.5 4.1 215
138.5 data sandianx set sandian
x1x2x1x2 proc reg data sandian var
y x1 x2 x1x2 model yx1 x2 x1x2 run
12
SAS ??????

• ???????GLM

/ GLM??/ proc glm datalt???gt class
lt????gt model lt???gtlt?????gt/?? run /
?????????????, ????????????
/
13
SAS ??????

• ???????GLM

/ GLM???/ data exam input g x y zb_at__at_ cards 1
30 10 280 1 25 11 260 1 35 13 330 1 40 14 400
1 45 14 410 2 20 12 270 2 18 11 210 2 25 12 280
2 25 13 300 2 23 13 290 3 40 14 410 3 45 15
420 3 48 16 425 3 50 18 450 3 55 19 470 proc
glm dataexam model zbx y xx xy yy run
14
SAS ??????

• ????

/ DISCRIM??/ proc discrim datalt???gt
class lt??gt priors lt?????gt
/???0.5/ var lt????gt run /
DISCRIM???,??????????,???????/ proc discrim data
exam distance listerr /distance??????????????
?,listerr???????????/ class type
var x1-x4 run
15
SAS ??????

• ????????

/ CLUSTER??TREE??/ proc cluster datalt???gt
?? /???method????,?11???/ var
lt??????gt copy lt????gt /???????????/ run
proc tree data lt???gt ?? copy
lt??gt id lt??gt run
16
SAS ??????

• ????????

/ CLUSTER??TREE???/ proc cluster data exam
standard methodward outtreeotree
pseudo /standard??????, methodward?????????,
outtreeotree??????????, pseudo?????F??t2???/
copy group run proc tree data otree
horizontal id group run
17
SAS ???????

• ?????

/ PRINCOMP??/ proc princomp datalt???gt ????
var lt????gt run /
?????,out ???????? ?????????outstat?
?? ????covariance?? cov ??? ????????,???????? ??
n?????????,??? ????standard??std???out ?????????
????,??? ?????? /
18
SAS ???????

• ?????

/ PRINCOMP???/ proc princomp dataexam n4 out
ex1 outstatex2 var x1-x10 proc
print data ex1 run /
???????????,????? ????,????????
/
19
SAS??

• SAS??????,????????????????,???????
• Learn more by yourself

/??????,?????/ data learnSAS input
what you do tomorrow cards 1 2 3
4 proc work_life_may_be data learnSAS run