Categorical variable not being read into output

[jake_t1876]

The Cultivar variable is not recognized as categorical for the ANOVA. Any suggestions/recommendations on correcting this issue and anything else you might notice? Thanks!

data rice_yield;

    input Soil $ Cultivar $ Yield;

    datalines;

Soil_I Cultivar_1 100

Soil_I Cultivar_2 73

Soil_I Cultivar_3 89

Soil_I Cultivar_4 37

Soil_I Cultivar_5 120

Soil_II Cultivar_1 105

Soil_II Cultivar_2 59

Soil_II Cultivar_3 91

Soil_II Cultivar_4 41

Soil_II Cultivar_5 115

Soil_III Cultivar_1 93

Soil_III Cultivar_2 65

Soil_III Cultivar_3 79

Soil_III Cultivar_4 43

Soil_III Cultivar_5 105

;

run;

/* Perform two-way ANOVA with interaction */

proc anova data=rice_yield;

    class Soil Cultivar;  /* Declare categorical variables */

    model Yield = Soil|Cultivar;  /* Include interaction term */

    means Soil Cultivar / tukey;  /* Post-hoc comparisons */

run;

[Ksharp]

That is because the data you imported in is NOT right.

Change your data step code to import it correctly .

data rice_yield;
    input Soil $ Cultivar :$32. Yield;
    datalines;
...............

[jake_t1876]

How does the ":$32" change the inputs?

[Ksharp]

?? It is LIST INPUT method, with it you could get variable "Cultivar" has more length 32,not 8 by default, to include "_2" "_3".
You can see the change:
Cultivar -> Cultivar_1
Cultivar -> Cultivar_2

[jake_t1876]

Thanks you so much for the explanation!!