Use series types HIGH and LOW to make vertical line segments in a HighLow chart, as in this example:
PLOT HIGHLOW
ALL AXIS, DARK SKYBLUE HIGH, LOW,
OPEN, CLOSE, LIGHT RED BAR:Y2
WITH
TITLE Y "Price"
TITLE Y2 "Volume"
SCALE Y2 0 2400 800
COLLAR
HORIZONTAL GRIDLINES
VERSION "1.4.4"
SELECT substring(day, 1,1),h,l,o,c,v
FROM foof;
Use OPEN and CLOSE to add open and close tick marks. You can also add any of the basic types: BAR, LINE, or AREA. The script above assigned bars to the second y axis using BAR:Y2.
HighLow charts are also useful for plotting residual values:
PLOT HIGHLOW
ALL AXISLABELS, HIGH, LOW,
SMALL FILLED BLUE CIRCLE, RED LINE
WITH
COLLAR
HORIZONTAL GRIDLINES
SELECT x, meas, line, meas, line
FROM ref1;
and for error bars:
PLOT HIGHLOW
ALL AXISLABELS,
GRAY HIGH, LOW,
GRAY LINE, BLUE SMALL FILLED CIRCLE
HORTICK, HORTICK
WITH
COLLAR
HORIZONTAL GRIDLINES
SELECT x,
meas + 4, meas - 4,
meas, meas,
meas + 4, meas - 4
FROM ref1;
Marker sizes VERY BIG, BIG, SMALL, VERY SMALL, and TINY can be applied to adjust the size of markers, or use a SIZE OVERRIDE
to vary marker sizes.