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Cornelis
Fluorite | Level 6

Dear all,

 

A fine colleague has measured a sample by colour.

 

Tube Colour
1 1.4
1 1.3
1 1.4
2 1.1
2 1.0
2 1.1
3 1.1
3 1.1
3 1.0

 

 

He measured a sample i n a tube three times.

Themn he poursed teh same sample in onther tube 2 and 3 and measured again 3 times each.

My question:

Is there a SAS procedure that can calculate

a) variation of colour measurements from the same tube

b) from different tube and

c) compare variations between a) and b) is there a significant difference.

 

Hope that you can provide me an example

 

Best regards,

Cornelis

1 ACCEPTED SOLUTION

Accepted Solutions
PeterClemmensen
Tourmaline | Level 20
data have;
input Tube$ Colour;
datalines; 
1 1.4
1 1.3
1 1.4
2 1.1
2 1.0
2 1.1
3 1.1
3 1.1
3 1.0
;

ods graphics on;
proc anova data = have;
	class tube;
	model colour = tube;
run;
ods graphics off;

View solution in original post

2 REPLIES 2
PeterClemmensen
Tourmaline | Level 20
data have;
input Tube$ Colour;
datalines; 
1 1.4
1 1.3
1 1.4
2 1.1
2 1.0
2 1.1
3 1.1
3 1.1
3 1.0
;

ods graphics on;
proc anova data = have;
	class tube;
	model colour = tube;
run;
ods graphics off;
Cornelis
Fluorite | Level 6

Thank you fo your contribution. You are right, PROC ANOVA is the most simple solution to handle this data set.

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What is ANOVA?

ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.

Find more tutorials on the SAS Users YouTube channel.

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