d*******o
发帖数: 493 | 1 楼主的Query execution plan 应该是
Select <-- Nested loop <-- index scan on [information] table
<-- table lookup on [address] table
Cost 主要在table lookup上。
解决办法是把你的lookup table[address] normalize
For example:
Chicago 205.1.1.1
Chicago 205.1.1.2
….
把ip做primary key，然后做one-to-many merge
这时候也可以用proc format或hash tree
以后的Query execution plan 应该是
Select <-- Nested loop <-- index scan on [information] table
<-- index scan on [address] table |
|
a******6
发帖数: 78 | 2 *********************************************
proc sql;
create table ratio_anl as
select a.day, a.gel, a.cond as cond1, b.cond as cond2,
a.cond || ':' || b.cond as comp,
case b.cond when 'A' then 0.25
when 'B' then 0.5
when 'C' then 1
when 'D' then 1.5
when 'E' then 2
end as pr_ratio,
a.sas_avg as sas_avg1, a.sas_sd as sas_sd1,
b.sas_avg as sas_avg2, b.sas_sd as sas_sd2,
a.ratio, ( a.sas_sd**2 + (a.ratio*b. |
|
t********y
发帖数: 469 | 3 比如说
sampling或者DOE 得到一组数据
有变量 y,x,class，s
y 和 x 都是continous variable
class和 s是 categorical variable
那么用proc surveyreg还是用anova?
来做这个model呢？ |
|
S******y
发帖数: 1123 | 4 I have the following data set,and try to make predictions for the last two
records. PROC REG and weight are used to fit a linear model. |
|
l***a
发帖数: 12410 | 5 assign %systime before and after each proc and get the difference? |
|
y********i
发帖数: 205 | 6 我最近写了个如下的code，原来的code在definition部分有点问题，所以就把
definition的部分改了下。改之前t值的变化会影响结果的变化，但是我做了一点改动
之后，无论如何改动t值，结果都不变了，而且即使把t删掉，结果也不变。不知道是什
么原因？每次运行，log里都显示没有问题。但是如果把t值设置成0，结果会报错，不
知道有高人能指点下或大致判断下原因不？
proc iml;
/* Used for debugging only */
*reset log print details;
start COptimal(xx)
global (Weight, Var1, b0, b1, b2, t);
/* nrow(xx)=1, ncol(xx)=Nd*2 */
x=shape(xx,nrow(xx)*ncol(xx)/2,2);
F=j(nrow(x),1) || x[,1] || x[ |
|
x*******i
发帖数: 1590 | 7 我 run proc genmod, 有一个contrast statement
CONTRAST a*b 0 0 0 0 1 -1;
but in sas log
"WARNING: The contrast will not be tested due to some rows being
nonestimable."
output is
Contrast Results for GEE Analysis
Chi-
Contrast DF Square Pr > ChiSq Type
0 . . Score
不知道这个some rows being nonestimable是什么？有牛人帮个忙吧。 |
|
j*****e
发帖数: 182 | 8 Proc genmod;
class A B;
model outcome=A*B/noint;
contrast .....;
run;
This should work. |
|
e****t
发帖数: 766 | 9 your A is continouse, right ? did you put it in the class statement ?
i think if with continouse variable in the model, "noint" option will effect
your contrast.
post your "proc genmod" code. let us check .... |
|
x*******i
发帖数: 1590 | 10 my sas codes:
PROC genmod data=xx;
class provfs b;
model outcome=a b a*b;
repeated subject=provfs;
weight c;
CONTRAST 'test equal slopes'
a*b 1 -1 0 0 0 0,
a*b 0 1 -1 0 0 0,
a*b 0 0 1 -1 0 0,
a*b 0 0 0 1 -1 0,
a*b 0 0 0 0 1 -1;
run;
a is continuous. b is categorical with 6 groups,
thanks,
effect |
|
j*****e
发帖数: 182 | 11 Try this.
PROC genmod data=xx;
class provfs b/param=ref ref=last;
model outcome=a b a*b;
repeated subject=provfs;
weight c;
CONTRAST 'test equal slope'
a*b 1 -1 0 0 0 ;
run;
For simultanous testing, just use the p-vale for the a*b term(5 df).
By the way, it seems like you don't understand the model parameterization. |
|
x*******i
发帖数: 1590 | 12 各位，不好意思，确实不是统计专业出生却在做一些统计的活，不太懂一些名词。
有了问题，就到处google，然后依葫芦画瓢。
我是想test 6 interactions(b*a) coefficients 的不同。网上找到了这个：
http://www.ats.ucla.edu/stat/sas/faq/compreg3.htm
里面有一个sas codes
"PROC GLM DATA=htwt2 ;
CLASS age ;
MODEL weight = age height age*height / SOLUTION ;
CONTRAST 'test equal slopes' age*height 1 -1 0,
age*height 0 1 -1 ;
RUN;“
例子里是Ho: B1 = B2 = B3
我想test ho: B1 = B2 = B3=B4= B5 = B6,所以就模仿了他的contrast code.
这是一个contrast statement
CONTRAST 'test equa |
|
j*****e
发帖数: 182 | 13 First of all, you did not tell the whole story.
What kind of outcome do you have? What is the modeling distribution and what
is the link function here? By default, it is normal with identity link. Is
this what you want? If so, what not use proc mixed?
Second, what does weight=c means?
Third, you can write two class statements, one with provfs and one with b
using the options that I gave.
You have to understand the parameterization of linear models before you use
SAS. Otherwise, it will be a disa |
|
p*****d
发帖数: 16 | 14 I guess it would be same SAS proc haplotype procedure except you specify EST
= BAYESIAN instead of using default EM algorithm. |
|
h******e
发帖数: 1791 | 15 用proc mixed分析repeated measures，一个fixed effect的不同level的variance可以
在covariance matrix table里找到。然后,能不能估算两个不同level的variance的比
值的confidence interval？ |
|
|
s********9
发帖数: 74 | 17 If I wanted to check the effect of A*B in proc mixed;
A: 1 2 3
B: 1 2 3 4
What could I do to make the group A=3 and B=4 as reference?
When I used estimate, there are lots of lines of A*B showed up as 0......
I want to try contrast statement, but it looks very confusion!
Anyone has experience? |
|
|
P****D
发帖数: 11146 | 19 proc freq;
table xxx / binomial(noninf);
run; |
|
e****t
发帖数: 766 | 20 Thanks all. it works now!
I specify similiar in riskdiff (option) ;
proc freq data = a ;
table x * y / riskdiff (noninf margin = 0.05) ;
run; |
|
e****t
发帖数: 766 | 21 sorry to bother again,
in the output, i didn't find p value.
Only CI is given. (i know i can invert it to get SE...lazy to do it ) can we
get non inferiority p value from SAS directly?
proc freq data = a ;
table x * y / riskdiff (noninf margin = 0.05 method = score) ;
run; |
|
f****r
发帖数: 1140 | 22 就像data step.要根据某些变量的combination定义新的变量。
if a in (2,3,4) and b in (3, 5,7) then new_var1="A" ;
if a in (1,7) and b in (2,6) then new_var2="B";
if a=6 then new_var3="C";
else new_var4="NA";
这个也可以用select when.
但是现在想在proc sql中用。a, b变量都已经sql table中选上了。怎么写呢？
多谢了。 |
|
f****r
发帖数: 1140 | 23 想随机从数据库里面pull一定数量的数据。就像data step里面的 where ranuni(123)=0.3 之类的。
看到网上有人用 在proc sql的 where ranuni(123) between 0.45 and 0.55 之类的。
但是为什么我用了log提示说是不对的function. 难道因为我的table太多？那个ranuni
只能用于一个table的时候？
另外，试过fetch,貌似fetch只能取前几个。而不是随机取多少。
望高手指教。多谢。 |
|
z***9
发帖数: 1052 | 24 有点图要在周末画出来给老板，家里电脑没有SAS，就临时装了一个过期的9.1.结果在
用proc gplot的时候，给我一个error：Procedure GPLOT not found.
为什么会这样的？难道因为过期了？我已经改了系统时间了。我这周末不可能去实验室
画的，哪位知道怎么解决这个问题。多谢多谢！！ |
|
|
|
n*****s
发帖数: 10232 | 27 试试score statement，然后再用proc score |
|
k****w
发帖数: 26 | 28 在proc logistic前加上ods trace on；
log 里就有你要的各个statictics的名称，
把这个名称加到ods output 名称=dataset； |
|
j*******9
发帖数: 27 | 29 proc mix 是测试random var 和 fix var 组合起来的关系，生统上mix model用得比
glm多～ 可以google一下：） |
|
S******y
发帖数: 1123 | 30 SAS/PROC SQL vs. SQL
SAS/SQL follows most of the guidelines set by American National Standards
Institute(ANSI) in its implementation of SQL. However it is not fully
compliant with the current ANSI Standard for SQL.
For more : see - SAS Guide to the SQL Procedure, esp. Appendix 2 - SQL
procedure and the ANSI Standard for SQL |
|
p*****o
发帖数: 543 | 31 I'm wondering how can i make the following code work?
PROC SQL;
CREATE TABLE A AS
SELECT MAX(DAYS) AS MAX_DAYS, ID
FROM B
GROUP BY ID
ORDER BY ID
WHERE (CALCULATED MAX_DAYS) >= 10;
QUIT;
it always said there is some error on the 'where' usage there.
Can anyone explain to me how to work it out?
Thanks a lot |
|
s******r
发帖数: 1524 | 32 PROC SQL;
CREATE TABLE A AS
SELECT MAX(DAYS) AS MAX_DAYS, ID
FROM B
GROUP BY ID
having (MAX(DAYS)) >= 10
ORDER BY ID
;
QUIT;run; |
|
k**g
发帖数: 1558 | 33 归根到底，就是怎么样使proc sql的join 更快？我知道在SQL server里面可以对一个
数据表进行index,这样join就很快。SAS里面能做到吗？谢谢！ |
|
p********a
发帖数: 5352 | 34 proc sql;
create index xxx |
|
k**g
发帖数: 1558 | 35 Thanks! If I have two existing tables, is this correct?
Proc SQL;
Create index Table1 date;
Create index Table2 date;
Create Table Table3 As
Select a.*, b.*
From Table1 a
Join Table2 b
On a.date=b.date; |
|
p********a
发帖数: 5352 | 36 你这个连语法都不对吧？写出来前肯定没GOOGLE过。
请GOOGLE PROC SQL CREATE ＩＮＤＥＸ
后面那个JOIN语法也不对 |
|
d*******1
发帖数: 854 | 37 Proc mixed
class gender nationality;
model salary = gender nationality gender*nationality/solution;
run; |
|
t****n
发帖数: 1879 | 38 code:
proc import out = work.n3
datafile="c:\n3.xls"
dbms=excel replace;
range="sheet1$";
getnames=YES;
MIXED=NO;
scantext=YES;
usedata=yes;
scantime=yes;
run; |
|
t*********l
发帖数: 778 | 39 proc iml;
x = j(100,100,0);
do i = 1 to 100;
do j=1 to 100;
x[i,j] = n_&i._&j;
end;
end;
quit;
为什么这个不work呢? |
|
t*********l
发帖数: 778 | 40 STILL NOT WOKRING!! n_i_j is macro variables i=1-3 j=1-3
proc iml;
x = j(3,3,0);
%macro call;
%do i = 1 %to 3;
%do j=1 %to 3;
x[i,j] = &&n_&i._&j;
%end;
%end;
%mend;
%call;
quit; |
|
s******r
发帖数: 1524 | 41 I tried cat(of c1-c2) in proc sql and failed. While I tried try
cat(c1,c2), there is no problem.
Any clue?
Thanks, |
|
o****o
发帖数: 8077 | 42 这个SAS-L上前两个星期有人问过，不过是SUM函数
VAR1-VARk的表达方式是SAS自己的，似乎跟SQL标准不兼容；所以SAS就没有implement
比如说这个QUERY怎么用VAR1-VARk的方式？
proc sql;
create table x as
select a.id, a.datetime, sum(a.val1, b.val2) as val
from y as a, y as b
where a.id=b.id & a.datetime
;
quit;
|
|
w*******n
发帖数: 469 | 43 like I want to input
proc format;
value A
1="µL"
;
run;
If I directly copy µ from word to my code, the outcome will be "A&
micro;", not "µ",
Can any big bull give me the answer?
Thanks with BaoZhi if with correct answer. |
|
p********r
发帖数: 1465 | 44 我是想这样做：
1、有一个叫table的数据，我随机把他分成两个，table1和table2（table1包含80%
table的数据，table2包含剩余的20%）
2、用table2做一些运算，用proc iml，然后把运算结果输出到result里面。
我想把这个两个步骤循环做1000遍，这样我的result表里面就会出来1000个结果。
请问应该如何做会比较好？ |
|
t**********h
发帖数: 100 | 45 我用output out=a,比如：
proc means data = test n mean median mode;
var x;
output out=a;
run;
我要的是n mean median mode， 但是文件a里面却还是 n, min, max, mean, std.
怎样才能生产我想要的statistics? 如 median, mode.
多谢了。 |
|
y****n
发帖数: 46 | 46 proc means data = test ;
var x;
output out=a(drop=_type_ _freq_) n=n mean=mean median=median mode=mode;
run; |
|
s*******2
发帖数: 791 | 47 proc means data=test noprint;
output out = summary(drop = _:)
mean(var1 var2) =
n(var1) =
median(var1 var3) =
mode(var1 var5) / autoname;
run; |
|
s******y
发帖数: 352 | 48 proc report data=test nowd;
column b=b1 a b=b2 c;
define b1/order noprint;
define a/order;
define b2/order;
define c/display;
run;
Baozi please! |
|
w*******n
发帖数: 469 | 49 proc print;
by a b;
id a b;
var c;
run; |
|
|
