xaxis marks correlated with x-values

[Jason2020]

Greetings,

I am using proc sgplot to model the relationship between bone level and follow up years in two treatment groups (A/B). The issue I have is that the tick marks of the x-axis are not spaced right. In other words, the 1 year and 6 years are spaced equally. I hope someone can show me how to space the marks so that they are correlated with the number of years. I included below a sample of my data, the program I used, and the resulting figure.

Thank you.

subject    group    followup       level

  02         A         1.0          4.7

  02         A         4.5          4.6

  02         A         6.0          4.9

  02         A         0.0          1.6

  03         A         2.0          2.3

  03         A         6.0          1.4

  03         A         0.0          1.5

  07         B         1.0          1.1

  07         B         2.0          1.4

  07         B         4.5          1.3

  07         B         6.0          1.3

  07         B         0.0          1.1

  08         A         2.0          1.0

  08         A         4.5          1.0

proc sgplot data=p1;

vline followup / response=level  group=group

   stat=mean limitstat=stderr lineattrs=(thickness=6px);

yaxis label="Bone Level (mm)"

   valueattrs=(size=18pt) labelattrs=(size=20pt weight=bold);

xaxis discreteorder=unformatted label="Follow up (years)"

   valueattrs=(size=18pt) labelattrs=(size=20pt weight=bold);

keylegend /location=inside valueattrs=(size=18pt)

   title="" titleattrs=(size=16pt);

run;

[JeffMeyers · Accepted solution]

You x axis is discrete instead of linear. Add TYPE=linear to your x axis statement.

[Jason2020]

That was a simple solution. Thank you very much.