Programming the statistical procedures from SAS

LS Means Matrix interpreting - Multiple comparison

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LS Means Matrix interpreting - Multiple comparison

Good Evening my SAS friends:

 

Here i am to get some help about constructing the significance difference ussing LS_MEANS means comparison matrix, weel i have an example to solve (with your help):

 

Here is the significance LS MEANS matrix :

 

i/j 1 2 3 4 5 6 7 8 9 10 11 12
1   1.0000 0.7619 0.2159 1.0000 1.0000 0.6868 0.1134 1.0000 1.0000 0.6291 0.0288
2 1.0000   0.8421 0.1318 1.0000 1.0000 0.7926 0.1631 0.9998 1.0000 0.7434 0.0442
3 0.7619 0.8421   0.0002 0.1632 0.7513 1.0000 0.9999 0.0840 0.5783 1.0000 0.9929
4 0.2159 0.1318 0.0002   0.0630 0.0037 <.0001 <.0001 0.0843 0.0053 <.0001 <.0001
5 1.0000 1.0000 0.1632 0.0630   0.9658 0.0070 <.0001 1.0000 0.9915 0.0017 <.0001
6 1.0000 1.0000 0.7513 0.0037 0.9658   0.4299 0.0058 0.8339 1.0000 0.2921 0.0002
7 0.6868 0.7926 1.0000 <.0001 0.0070 0.4299   0.9337 0.0008 0.1717 1.0000 0.5166
8 0.1134 0.1631 0.9999 <.0001 <.0001 0.0058 0.9337   <.0001 0.0006 0.9121 1.0000
9 1.0000 0.9998 0.0840 0.0843 1.0000 0.8339 0.0008 <.0001   0.9205 0.0001 <.0001
10 1.0000 1.0000 0.5783 0.0053 0.9915 1.0000 0.1717 0.0006 0.9205   0.0828 <.0001
11 0.6291 0.7434 1.0000 <.0001 0.0017 0.2921 1.0000 0.9121 0.0001 0.0828   0.4230
12 0.0288 0.0442 0.9929 <.0001 <.0001 0.0002 0.5166 1.0000 <.0001 <.0001 0.4230

 

 

Following this table, arriving to the conclussion i arrives to this result:

 

1 -> bcde

2 -> bcde

3 -> abcd

4 -> e

5 -> cde

6 -> bcd

7 -> ab

8 -> c

9 -> de

10 -> bcd

11 -> ab

12 -> a

 

Well my friends, i made this manually...and for this case i would like to know if there is any command line to get this kind of results atumatically. to obtain this type of result:

 

EXAMPLE

 

Tukey Grouping                       Mean      N    Treatment

                                   A        192.58      9   1

                                   A

                             B    A        183.69      9   2

                             B    A

                             B    A        161.21      9    3

                             B    A

                             B    A        156.47      9    4

                             B    A

                             B    A        147.69      9    5

                             B    A

                             B    A        142.30      9    6

                             B    A

                             B    A        142.30      9    7

                             B    A

                             B    A        142.30      9    8

                             B    A

                             B    A        142.30      9    9

                             B    A

                             B    A        142.30      9    10

                             B    A

                             B    A        142.30      9    11

                             B

                             B              128.63      9    12


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‎09-25-2015 06:23 AM
Valued Guide
Valued Guide
Posts: 679

Re: LS Means Matrix interpreting - Multiple comparison

Switch from GLM to GLIMMIX (you will need to learn some sytax), and use LINES option on the LSMEANS statement. Works great.

LSMEANS treatment / diff LINES;

 

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Solution
‎09-25-2015 06:23 AM
Valued Guide
Valued Guide
Posts: 679

Re: LS Means Matrix interpreting - Multiple comparison

Switch from GLM to GLIMMIX (you will need to learn some sytax), and use LINES option on the LSMEANS statement. Works great.

LSMEANS treatment / diff LINES;

 

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