*
drawtext和layout gridded中的entry都可以展示一段文字
drawtext值是相當於找個地方寫入文字，對佈局沒影響
layout gridded中的entry會佔據一部分佈局空間

axistable 和blockplot都可以畫出來資料，但blockplot不能用discreteattrvar
axistable 可以使用colorgroup和discreteattrvar對應起來

插入referenceline 或者dropline時，記得座標軸型別 type = linear以或其它，不能為離散型
dropline可以控制線的開始位置，不貫穿整個layout

blockplot中的valueHalign = start可以使得資料顯示在最標軸刻度上方，而不是其它位置

適當的用pad = () outerpad = ()調整位置

BOXPLOT中的connect就是連線，把不同boxplot中的min max mean或其它用線連起來，display = (connect)
display = (caps)顯示極值處的橫線

innermargin和layout gridded可以巢狀在layout overlay中，主要是畫個文字或者統計量
innermargin 還可以巢狀在PROTOTYPE中

;

data heart;
do visitn  = 1,2,3,4,5,6,7;
    do subjid = 1 to 50;
        response 
 
= ranuni(1)*54;drug = 'Drug A';priorNum = put(int(ranuni(1)*23 + 2),best.);afterNum = put(int(ranuni(1)*14 + 2),best.);
        output;
        response = ranuni(1)*54;drug = 'Drug B';priorNum = put(int(ranuni(1)*23 + 2),best.);afterNum = put(int(ranuni(1)*14 + 2),best.);
        output;
        response 
 
= ranuni(1)*54;drug = 'Drug C';priorNum = put(int(ranuni(1)*23 + 2),best.);afterNum = put(int(ranuni(1)*14 + 2),best.);
        output;
    end;
end;
run;

proc sort data = heart;
by drug visitn subjid;
run;

data heart;
    set heart;
    by drug visitn subjid;
    retain _num _num2;
    if first.visitn then _num = priorNum;
        else priorNum = _num;
    if first.visitn then _num2 = afterNum;
        else afterNum = _num2;
    if 48 < response or response > 2 then do;
        response_1 = response;
    end;
run;


proc template;
define statgraph _boxplot;
begingraph  / subpixel = on border = false;

legenditem name = '1' type = markerline / label = 'Drug A' 
                                        labelattrs = (color = black family = 'Courier New' size = 9pt)
                                        markerattrs = (color = red symbol = plus)
                                        lineattrs = (color = red)    
                                        outlineattrs = (color = white);
legenditem name = '2' type = markerline / label = 'Drug B'
                                        labelattrs = (color = black family = 'Courier New' size = 9pt)
                                        markerattrs = (color = green symbol = circle)
                                        lineattrs = (color = green)
                                        outlineattrs = (color = green);
legenditem name = '3' type = markerline / label = 'Drug C'
                                        labelattrs = (color = black family = 'Courier New' size = 9pt)
                                        markerattrs = (color = blue symbol = DiamondFilled)
                                        lineattrs = (color = blue)
                                        outlineattrs = (color = blue);

discreteattrmap name = 'selfName1' / ignorecase = true;
    value 'Drug A' / lineattrs = GraphData1(color = red pattern = solid)
                    markerattrs = GraphData1(color = red symbol = plus)
                    fillattrs = GraphData1(color = red )
                    textattrs = (color = red);
    value 'Drug B' / lineattrs = GraphData1(color = green pattern = solid)
                    markerattrs = GraphData1(color = green symbol = Circle)
                    fillattrs = GraphData1(color = green )
                    textattrs = (color = green);
    value 'Drug C' / lineattrs = GraphData1(color = blue pattern = solid)
                    markerattrs = GraphData1(color = blue symbol = DiamondFilled)
                    fillattrs = GraphData1(color = blue )
                    textattrs = (color = blue);
enddiscreteattrmap;
discreteattrvar attrvar = selfName1_ var = drug attrmap = 'selfName1';


    layout lattice / rows = 2 columndatarange = union rowweights = (0.15 0.85) rowgutter = 0.2;
        columnaxes;
            columnaxis / display = (ticks tickvalues label) label = 'Visit';
        endcolumnaxes;
        
        layout overlay / border = false walldisplay = none;
/*            entry halign = left 'Number of subject before the visit' / valign = top  textattrs = (family = 'Courier New' size = 9pt) pad = (left = 40pt);*/
/*            drawtext  textattrs = (family = 'Courier New' size = 9pt ) "Number of subject before the visit" / x = 0.5 y = 100 width = 100 anchor = left drawspace = layoutpercent ; */
/*            blockplot x = visitn block = priorNum / class = drug display = (values label) valuehalign = start valueattrs = (family = 'Courier New' size = 9pt) labelattrs = (family = 'Courier New' size = 9pt) ;*/
/*            layout gridded / rows = 1 columns = 1 order = columnmajor autoalign = (topleft);*/
/*                entry halign = left textattrs = (family = 'Courier New' size = 9pt) 'Number of subject before the visit' / valign = top;*/
/*            endlayout;*/
            axistable x = visitn value = priorNum / class = drug colorgroup = selfName1_
                        headerlabel = "Number of subject before the visit" 
                        display = (values label)
                        headerlabelattrs = (family = 'Courier New' size = 9pt)
                        labelattrs = (family = 'Courier New' size = 9pt)
                        valueattrs = (family = 'Courier New' size = 9pt);
        endlayout;
        layout overlay / x2axisopts = (type = linear display = none );
            boxplot x = visitn y = response / xaxis= x2 group = selfName1_ groupdisplay = cluster connect = max 
                                            connectattrs=( Pattern=solid Thickness=1) 
                                              display=(outliers caps mean);
/*            referenceline x = 7.1 / lineattrs = (pattern = dot thickness = 2 color = black);*/
            referenceline y = 45 / lineattrs = (pattern = dot thickness = 2 color = black) ;
            dropline x = 5.5 y = 0 / xaxis = x2 dropto  = x  lineattrs = (pattern = dot thickness = 2 color = black);

            discretelegend '1' '2' '3' / location = outside halign = center valign = bottom 
                                        border = false across = 3 outerpad = (top = 50);
            innermargin / pad = (top = 5);
                blockplot x = visitn block = afterNum / class = drug  display = (values label) VALUEHALIGN=start;
            endinnermargin;

        endlayout;
    endlayout;
endgraph;
end;
run;

ods html;

proc sgrender data = heart template = _boxplot;
run;