# Help!!!

#### robo_2

##### New Member
I need to plot the incidence of a disease in stata and have no idea how to!!!

i have two columns = Disease and Month

i have 0 and 1 in the disease column

i need stata to calulate the number of diseased individuals per month by the total number of people in that month and then plot those numbers against month

#### terzi

##### TS Contributor
Hi robo_2,

If I understood correctly, you can use the command catplot to do that graph. catplot is not within the basic stata commands, you will have to download it with the following line:

ssc install catplot

http://www.stata.com/statalist/archive/2003-02/msg00608.html