Creation ('booking') of HBOOK objects in memory.

/HISTOGRAM/CREATE/1DHISTO id title ncx xmin xmax [ valmax ]

ID	C	Histogram Identifier Loop
TITLE	C	Histogram title D=' '
NCX	I	Number of channels D=100
XMIN	R	Low edge D=0.
XMAX	R	Upper edge D=100.
VALMAX	R	Maximum bin content D=0.

Create a one dimensional histogram. The contents are set to zero. If VALMAX=0, then a full word is allocated per channel, else VALMAX is used as the maximum bin content allowing several channels to be stored into the same machine word.

/HISTOGRAM/CREATE/PROFILE id title ncx xmin xmax ymin ymax [ chopt ]

ID	C	Histogram Identifier
TITLE	C	Histogram title D=' '
NCX	I	Number of channels D=100
XMIN	R	Low edge in X D=0.
XMAX	R	Upper edge in X D=100.
YMIN	R	Low edge in Y D=-1.E30
YMAX	R	Upper edge in Y D=1.E30
CHOPT	C	Options D=' '

CHOPT:

'' ''	Error on mean
'S'	Spread option

Create a profile histogram. Profile histograms accumulate statistical quantities of a variable y in bins of a variable x. The contents are set to zero.

/HISTOGRAM/CREATE/BINS id title ncx xbins [ valmax ]

ID	C	Histogram Identifier
TITLE	C	Histogram title D=' '
NCX	I	Number of channels D=100
XBINS	C	Vector of NCX+1 low-edges
VALMAX	R	Maximum bin content D=0.

Create a histogram with variable size bins. The low-edge of each bin is given in vector XBINS (NCX+1) values. The contents are set to zero. See 1DHISTO for VALMAX.

/HISTOGRAM/CREATE/2DHISTO id title ncx xmin xmax ncy ymin ymax [ valmax ]

ID	C	Histogram Identifier Loop
TITLE	C	Histogram title D=' '
NCX	I	Number of channels in X D=40
XMIN	R	Low edge in X D=0.
XMAX	R	Upper edge in X D=40.
NCY	I	Number of channels in Y D=40
YMIN	R	Low edge in Y D=0.
YMAX	R	Upper edge in Y D=40.
VALMAX	R	Maximum bin content D=0.

Create a two dimensional histogram. The contents are set to zero. See 1DHISTO for VALMAX.

/HISTOGRAM/CREATE/PROX id

ID

C

Histogram (2-Dim) Identifier Loop

Create the projection onto the x axis. The projection is not filled until the Histo/Project command is executed. To plot projection X of ID type:

/HISTOGRAM/CREATE/PROY id

ID

C

Histogram (2-Dim) Identifier Loop

Create the projection onto the y axis. The projection may be filled with Histo/Project. To plot projection Y of ID type:

/HISTOGRAM/CREATE/SLIX id nslices

ID	C	Histogram (2-Dim) Identifier Loop
NSLICES	I	Number of slices

Create projections onto the x axis, in y-slices. The projection may be filled with Histo/Project. To plot slice 3 in X of ID type:

/HISTOGRAM/CREATE/SLIY id nslices

ID	C	Histogram (2-Dim) Identifier Loop
NSLICES	I	Number of slices

Create projections onto the y axis, in x-slices. The projection may be filled with Histo/Project. To plot slice 2 in Y of ID type:

/HISTOGRAM/CREATE/BANX id ymin ymax

ID	C	Histogram (2-Dim) Identifier Loop
YMIN	R	Low edge in Y
YMAX	R	Upper edge in Y

Create a projection onto the x axis, in a band of y. Several bands can be defined on the one histogram. The projection may be filled with Histo/Project. To plot band 1 in X of ID type:

/HISTOGRAM/CREATE/BANY id xmin xmax

ID	C	Histogram (2-Dim) Identifier Loop
XMIN	R	Low edge in X
XMAX	R	Upper edge in X

Create a projection onto the y axis, in a band of x. Several bands can be defined on the one histogram. The projection may be filled with Histo/Project. To plot band 1 in Y of ID type:

/HISTOGRAM/CREATE/TITLE_GLOBAL [ chtitl chopt ]

CHTITL	C	Global title D=' '
CHOPT	C	Options D=' '

CHOPT:

'' ''	The global title is plotted at the top of each picture.
'U'	If the option 'UTIT' is on, a user title is plotted at the bottom of each histogram.

Set the global title. The size and the Y position of the global title may be changed by the commands SET GSIZ and SET YGTI respectively. The size and the Y position of the user title may be changed by the commands SET TSIZ and SET YHTI respectively.