Abscissa to channel number

CALL HXYIJ (ID,X,Y,I*,J*)

Action: Return the number of the channel (cell) which contains a given value in X (1-dimensional case) or a given pair of (X,Y) (2-dimensional case).

Input parameters:

ID

Histogram identifier

X

X-value

Y

Y-value (2-dimensional case, i.e. HXYIJ only)

Output Parameters:

I

Channel number in X-dimension.
Under/Overflows give I=0 or I=NCHANX+1 respectively.

J

Channel number in Y-dimension (2-dimensional case, i.e. HXYIJ only).
Under/Overflows give J=0 or J=NCHANY+1 respectively.

CALL HIJXY (ID,I,J,X*,Y*)

Action: Returns the X-coordinate of the lower edge of a given channel (1-dimensional case) or the X-Y coordinate pair if a given cell (2-dimensional case).

Input parameters:

ID

Histogram identifier.

I

Channel or cell number in X-dimension, with $1\le I\le NCHANX$ .

J

Cell number in Y-dimension with $1\le J\le NCHANY$ . (2-dimensional case, i.e. HIJXY only)

Output Parameters:

X

X-coordinate of lower edge of channel or cell.

Y

Y-coordinate of lower edge of cell. (2-dimensional case, i.e. HIJXY only).