The code or parameters for the chart are:

TITLECHART=Event Chart
LEGEND=TRUE
YLABEL= 
XLABEL=Time
XAXIS_INITIAL_DATE=10/10/2001
XAXIS_DATE_STEP=d
XAXIS_DATE_FORMAT=%d-%m
SERIE_1=Act. A
SERIE_TYPE_1=BAR
SERIE_STYLE_1=GREEN
SERIE_FONT_1=Default-2|8
SERIE_DATAX_1=0|0|0
SERIE_DATA_1=5|27|44
SERIE_BARS_START_1=0|15|30
SERIE_2=Act. B
SERIE_TYPE_2=BAR
SERIE_STYLE_2=BLUE
SERIE_FONT_2=Default-2|8
SERIE_DATAX_2=1|1|1
SERIE_DATA_2=7|15|24
XAXIS_ON_TOP=true
SERIE_BARS_START_2=5|10|20
CHART_BORDER=0.2|BLACK|LINE
CHART_FILL=YELLOW
BIG_TICK_INTERVALX=5
TICK_INTERVALX=2
BIG_TICK_INTERVALY=1
YSCALE_MAX=3
YSCALE_MIN=0
XSCALE_MIN=0
XSCALE_Max=50
XSCALE_EXACT_MAX=true
XAXIS_START_WITH_BIG_TICK=true
YAXIS_LABELS=Act. A|Act. B
LEGEND_BORDER=0.2|BLACK|LINE
LEGEND_FILL=WHITE
LEFT_MARGIN=0.15
BARCHART_VERTICAL=false
SERIE_BORDER_TYPE_1=RAISED
SERIE_BORDER_TYPE_2=RAISED
BARCHART_BARWIDTH=20
BARCHART_EVENTCHART=true