4. Once you understand the technique behind an X-Y plot, you should be able to chart out other plotters, like bar and pie.
一旦知道了绘制X - Y坐标图的技术，就应该能够绘制出其他图形，比如条形图和饼图。
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5. Every time you see the letter "a" followed by the letter "X," you have to press the space bar.
每当你看到字母X紧随在字母a后面，你就按下键盘的空格键。
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6. This API takes the (x,y) starting point and the text. You do this for each of the data points, creating a bar graph with a label below it for each.
您对每个数据点都执行这个操作，为每个数据点创建一个柱状图，其下带有一个标签。
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7. The timeline can be illustrated with any units that work best for your projects, including days, weeks, months, or more. The timeline appears along the horizontal axis (the x-axis) in most bar charts.
时间轴的单位可随意，可以是天、周、月等等，只要有利于你的工作就可以。
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8. To see the URL changes in the browser address bar, pop out the preview window by clicking the blue 'X' button in the upper right corner.
请点击右上角的蓝色'X '按钮以弹出预览窗口，这样可以看到浏览器地址栏的变化情况。
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9. If you're using X-Windows, yet another smart way to keep track of the current folder is to display the folder name on the title bar of the xterm as you work your way across multiple folders.
