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| The GANTT Procedure |
Example 8.2 Customizing the Gantt Chart
This example shows how to control the format of the Gantt chart using CHART statement options. The Schedule data set used by PROC GANTT is the same as that used in Example 8.1. Output 8.2.1 is on three pages; the first page contains a detailed description of the various symbols used by the procedure to plot the schedule. This description is produced by using the SUMMARY option. The next two pages contain the Gantt chart. The LINEPRINTER option invokes the procedure in line-printer mode. The FILL option causes the first page to be filled as completely as possible before the second page is started. Thus, the first page of the chart contains 20 activities while the second page contains only 8 activities.
The SKIP=2 specification causes two lines to be skipped between observations. The NOLEGEND option suppresses displaying of the legend, while the NOJOBNUM option causes job numbers to be omitted. The CRITFLAG option is used to produce the flag to the left of the main chart indicating if an activity is critical. Specifying BETWEEN=2 sets the number of columns between consecutive ID columns equal to 2. The REF= option produces the reference lines shown on the chart on the specified dates. The INCREMENT=5 specification indicates to the procedure that labels are to be displayed in increments of 5 units of the MININTERVAL= value, which by default is DAY. The ID statement is used to display the activity names to the left of the chart. The ID statement also causes the activity 'strip' to appear only once in the chart. Thus, there are only 28 activities in this chart instead of 29, as in Example 8.1.
title 'Gantt Example 2';
title2 'Customizing the Gantt Chart';
proc gantt lineprinter;
chart / summary
fill
mininterval=week scale=5
skip=2
nolegend
nojobnum critflag between=2
ref='10jun04'd to '30aug04'd by 15
increment=1;
id activity;
run;
| Gantt Example 2 |
| Customizing the Gantt Chart |
Summary
Symbols used for different times on the schedule
Variable Symbol Variable Symbol
E_START < L_START <
E_FINISH > L_FINISH >
Miscellaneous Symbols
Symbol Explanation
| Reference Line
* Overprint character when start or
finish times coincide
Symbols used for joining start and/or finish times
Symbol Explanation
- Duration of non-critical job
. Slack time for non-critical job
= Duration of critical job
- Slack time(neg.) for supercritical job
* Duration of supercritical job
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| Gantt Example 2 |
| Customizing the Gantt Chart |
Summary (Contd.)
Some examples of typical strings
String Description
<--->...<...> Duration followed by slack time:
early finish before late start
<---<--->...> Duration followed by slack time:
early finish after late start
<---*...> Duration followed by slack time:
early finish equals late start
*===* Duration of job on critical path
<--->---<***> Duration preceded by negative slack
time for a supercritical job:
late finish before early start
<---<***>***> Duration preceded by negative slack
time for a supercritical job:
late finish after early start
<---****> Duration preceded by negative slack
time for a supercritical job:
late finish equals early start
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| Gantt Example 2 |
| Customizing the Gantt Chart |
JUN JUN JUL JUL JUL JUL AUG AUG AUG AUG AUG SEP
activity Flag 21 28 05 12 19 26 02 09 16 23 30 06
-+----+----+----+----+----+----+----+----+----+----+----+-
| | | | | | |
| | | | | | |
form CR |*==* | | | | |
| | | | | | |
| | | | | | |
pour CR | ** | | | | |
| | | | | | |
| | | | | | |
core CR | |*=========* | | | |
| | | | | | |
| | | | | | |
strip CR | | *=* | | | |
| | | | | | |
| | | | | | |
curtain_wall CR | | | *==* | | | |
| | | | | | |
| | | | | | |
plumbing | | | <------*|.....> | | |
| | | | | | |
| | | | | | |
risers | | | <--<--->|.> | | |
| | | | | | |
| | | | | | |
doors | | | *.......|.......<> | | |
| | | | | | |
| | | | | | |
electrical_walls | | | <------<|-->......>| | |
| | | | | | |
| | | | | | |
balance_elevator | | | <->.....|.......<.>| | |
| | | | | | |
| | | | | | |
port_masonry | | | <->.....|........<>| | |
| | | | | | |
| | | | | | |
finish_masonry | | | <->...|.........<|> | |
| | | | | | |
| | | | | | |
glaze_sash CR | | | *===*| | | |
| | | | | | |
| | | | | | |
spray_fireproof CR | | | *|=* | | |
| | | | | | |
| | | | | | |
insulate_walls | | | <|->....<..>| | |
| | | | | | |
| | | | | | |
-+----+----+----+----+----+----+----+----+----+----+----+-
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| Gantt Example 2 |
| Customizing the Gantt Chart |
JUN JUN JUL JUL JUL JUL AUG AUG AUG AUG AUG SEP
activity Flag 21 28 05 12 19 26 02 09 16 23 30 06
-+----+----+----+----+----+----+----+----+----+----+----+-
| | | | | | |
| | | | | | |
ceil_ducts_fixture CR | | | | *===* | | |
| | | | | | |
| | | | | | |
test CR | | | | *=* | | |
| | | | | | |
| | | | | | |
insulate_mechanical CR | | | | *=*| | |
| | | | | | |
| | | | | | |
lath CR | | | | *|* | |
| | | | | | |
| | | | | | |
plaster CR | | | | |*===* | |
| | | | | | |
| | | | | | |
marble_work | | | | |<-<>> | |
| | | | | | |
| | | | | | |
acoustic_tiles CR | | | | | *===* | |
| | | | | | |
| | | | | | |
tiling | | | | | <<>.> | |
| | | | | | |
| | | | | | |
floor_finish CR | | | | | *===* | |
| | | | | | |
| | | | | | |
paint CR | | | | | *=|* |
| | | | | | |
| | | | | | |
finish_mechanical CR | | | | | *=|* |
| | | | | | |
| | | | | | |
finish_paint CR | | | | | |*=* |
| | | | | | |
| | | | | | |
caulking_cleanup CR | | | | | | *=* |
| | | | | | |
| | | | | | |
-+----+----+----+----+----+----+----+----+----+----+----+-
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