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