The financebars style is only relevant for 2-d data plotting of financial
data. Five columns of data are required; in order, these should be the x
coordinate (most likely a date) and the opening, low, high, and closing
prices. The symbol is a vertical line segment, located horizontally at the x
coordinate and limited vertically by the high and low prices. A horizontal
tic on the left marks the opening price and one on the right marks the
closing price. The length of these tics may be changed by set bar. The
symbol will be unchanged if the high and low prices are interchanged. See
set bar and candlesticks.