topic Re: proc univariate in SAS Procedures

proc univariate

sasphd — Thu, 12 Feb 2015 14:36:25 GMT

hello,

I use proc univariate and i generate output files (quantiles and mean).

proc univariate data=bb.mdist;

var X;

by rank_no;

ods output Quantiles=quantiles;

run;

The file quantiles is like :

Rank_NO	VarName	Quantile	Estimate
1	X	100% Max	2,04178
1	X	99%	1,855866
1	X	95%	1,601379
1	X	90%	1,455169
1	X	75% Q3	1,24162
1	X	50% Median	0,976555
1	X	25% Q1	0,75844
1	X	10%	0,549392
1	X	5%	0,47554
1	X	1%	0,132898
1	X	0% Min	-0,02425
2	X	100% Max	2,311919
2	X	99%	1,72241
2	X	95%	1,504458
2	X	90%	1,361372
2	X	75% Q3	1,176674
2	X	50% Median	0,986445
2	X	25% Q1	0,804874
2	X	10%	0,65509
2	X	5%	0,558072
2	X	1%	0,244873
2	X	0% Min	-0,21428

Then, I want to perform the mean quantile by quantile so I obtain a table like this

VarName	Quantile	Estimate
X	100% Max
X	99%
X	95%
X	90%
X	75% Q3
X	50% Median
X	25% Q1
X	10%
X	5%
X	1%
X	0% Min

Re: proc univariate

Reeza — Thu, 12 Feb 2015 14:42:18 GMT

Do you want to run the results through a proc means to get the average max for example or do you want to have the results for the full dataset, i.e. not by Rank_no, which would mean running proc univariate once more without by statement?

Re: proc univariate

sasphd — Thu, 12 Feb 2015 15:03:38 GMT

Yes I want to have the average of each quantile. Like the value of max for all rank_no. the problem here is that how i can apply proc means?

Re: proc univariate

Reeza — Thu, 12 Feb 2015 15:09:16 GMT

Using the quantiles output?

Proc means data=quantiles;

class quantile;

var estimate;

output out=want mean=estimate;

run;

Re: proc univariate

sasphd — Thu, 12 Feb 2015 15:59:56 GMT

when I run your program I obtain

Quantile	_TYPE_	_FREQ_	estimate
0	30646	1,023439
0% Min	1	2786	0,084684
1%	1	2786	0,26137
10%	1	2786	0,612162
100% Max	1	2786	2,064825
25% Q1	1	2786	0,791249
5%	1	2786	0,500818
50% Median	1	2786	0,983584
75% Q3	1	2786	1,18967
90%	1	2786	1,403732
95%	1	2786	1,537687
99%	1	2786	1,828053

Why the percentiles are not ordred. and What is the first line means

Re: proc univariate

Reeza — Thu, 12 Feb 2015 16:55:41 GMT

Quantile looks to be a text variable so its sorted alphabetically.

The first line is the average of all the values, note _TYPE_=0

You can get numeric quantiles by manually calculating the percentiles in proc univariate using pctpts, though you may need to transpose the results then.

proc univariate data=bb.mdist;

var X;

by rank_no;

ods output pctlpts=0 to 100 by 5 pctlpre=P_;

run;

Re: proc univariate

sasphd — Thu, 12 Feb 2015 19:23:13 GMT

i got this error

2816 proc univariate data=bb.mdist;

2817 var m_max_mret;

2818 by rank_no;

2819 ods output pctlpts=0 to 100 by 5 pctlpre=P_;

ERROR 22-322: Syntax error, expecting one of the following: a name, a quoted string.

ERROR 76-322: Syntax error, statement will be ignored.

2820 run;

Re: proc univariate

Reeza — Thu, 12 Feb 2015 19:47:14 GMT

my bad, that should be output out=DATASET.

You can explicitly list your percentiles if you want exactly the percentiles from the quantiles table.

proc univariate data=bb.mdist;

var X;

by rank_no;

output out=want pctlpts=0 to 100 by 5 pctlpre=P_;

run;