Panel histogram in PROC UNIVARIATE - Y axis labeling issue

[Cruise]

Hi folks, 

Do you know how to get rid of variable= shown on the y-axis of each panels in the histogram plot below? In this case, the name of variable is WGT_DX and it appears as WGT_DX= before my information coming from proc format. 

I appreciate your help!

Thanks in advance. 

Let me know if mock data needed.  

ods graphics / height=1200px width=800px;
PROC UNIVARIATE DATA=TEST;
CLASS WGT_DX KEEP2;
VAR DIFF;
HISTOGRAM DOD_DIFF/NROWS=6 ODSTITLE="HI TITLE"; 
ODS SELECT HISTOGRAM; 
FORMAT WGT_DX WGT_DX_MIN.; 
RUN;
PROC FORMAT;

VALUE WGT_DX_MIN
1="Colon/Rectum Cancer"
2="Benign/EN/Uncertain Behavior"
3="Secondary,Unspecified or In-situ"
4="Malignancy of Digestive Organ"
5="Screening for Malignancy"
6="Personal history of GI-cancer"
;
RUN; 

[Ksharp · Accepted solution]

Use PROC SGPANEL instead .

[Cruise]

Thanks! I was just thinking of sgpanel.