type to line over a category X axis to join one value per day, like orders across a week.smooth on a line series to draw a curve through the points instead of straight segments between them.areaStyle to a line series to fill the space under it, with boundaryGap off so the area meets both edges.stack name so each one starts where the one below it ends, adding up visits by channel.stack with areaStyle and emphasis.focus so hovering a band fades the others, with a label on the top series.LinearGradient that runs from one series color to the next, on smooth lines with no stroke.step to start, middle or end to draw each change as a jump, placed before, between or after the points.lineStyle for a thick dashed stroke and itemStyle with symbol and symbolSize for large outlined triangles.[x, y] pairs to a line series over two value axes to plot a path in any order, not one value per category.category axis on Y and values on X to read temperature against altitude, with a soft shadow on the line.type to log so growth by powers and by halves both read as straight lines, with minor split lines.markPoint for the highest and lowest days and markLine for the average, plus a line drawn from a fixed spot to the max.visualMap on the X dimension to fill only some ranges of an area, with markLine edges around them.visualMap and shade the peak hours behind it with markArea.xAxisIndex to compare the same months across two years on one value axis.filter transform to a dataset to derive one dataset per country from a single table, then point each series at one.visualMap, by value in the top grid and by position along the X axis in the bottom one.areaStyle to draw a band around the line in the middle.sampling set to lttb and a gradient fill, starting zoomed in with an inside and a slider dataZoom.visualMap, mark each threshold with markLine and zoom with dataZoom.type to time and pass timestamps with each value, so the labels follow the zoom level.dataZoom.axisPointer.link and zoom both with one dataZoom.inverse from the top, and shade the flood period with markArea.coordinateSystem to polar with a value angle axis to plot a cardioid from radius and angle pairs.polar system with a radius axis that starts at zero and a slower draw animation.label.position on each markLine to place its label at the start, middle or end, inside or outside the line.inverse value axis with interval 1 for ranks, smooth thick lines and an endLabel naming each series.graphic group to draw shapes and text over the chart, here a rotated stamp and a note box beside the line.setOption with the updated data, so the time axis scrolls as values arrive.animationDuration with an endLabel on each series so the lines draw across the years like a race.animationEasing on each series to compare every built-in easing curve in its own small grid, then replay the draw.triggerOn to none and give the axis pointer a handle, so the tooltip follows a drag rather than a hover.convertFromPixel to turn each click inside the grid into a new point.graphic circles over each point and update the series data as they move.breaks, which squeeze the data outside the box into the edges.