1. excel绘制双对数曲线
一、获取正态分布概念密度
正态分布概率密度正态分布函数“NORMDIST”获取。
在这里是以分组边界值为“X”来计算：
Mean=AVERAGE(A:A)(数据算术平均）
Standard_dev=STDEV(A:A)(数据的标准方差）
Cumulative=0(概率密度函数）
二、向下填充。
三、在直方图中增加正态分布曲线图。
1、在直方图内右键→选择数据→添加→。
2、系列名称：选中H1单元格。
3、系列值：选中H2:H21。
4、确定。
四、修整图形
1、在图表区柱形较下方选中正态分布曲线数据，（正态分布密度值和频率数值相比太小了，实在看不清，多试几次，选中后如图，同时正态分布曲线那数数据处于选中状态）。
2、右键→设置数据列格式→系列绘制在→次坐标轴；
关闭，如图。
五、更改系列图表类型
1、选中正态分布柱形图→右键→更改系列图表类型。
2、选中“拆线图”。
3、确定。
六、平滑正态分布图。
选中正态分布曲线→右键→设置数据列格式→线型→勾选“平滑线”→关闭。
大功告成！！！
本例中原始数据：
51.7,50.6,57.9,56.9,56.7,56.7,55.3,56.1,53.7,54.5,56.9,51.9,52.1,55.1,54.9,54.7,55.3,55.3,54.5,54.9,54.5,55.3,54.9,54.3,53.7,53.5,53.7,53.1,54.5,53.1,53.9,53.5,53.3,53.9,53.5,53.5,52.5,53.3,53.5,53.3,53.7,53.1,54.5,53.9,56.7,54.5,54.3,55.1,54.1,54.5,53.9,53.1,53.3,55.3,55.7,56.1,54.7,53.1,53.3,52.7,53.1,52.9,53.1,54.3,53.1,52.7,53.1,53.3,53.1,53.3,53.1,53.3,55.1,54.7,54.9,54.3,53.9,53.7,53.9,53.5,54.5,54.3,55.5,55.7,55.5,54.9,55.3,55.5,53.7,54.1,53.9,55.7,55.9,53.7,53.5,53.1,52.3,52.7,52.9,53.3,53.9,52.7,53.5,53.1,52.7,51.9,52.5,53.9,54.5,55.7,55.3,54.9,53.1,52.9,54.1,53.3,54.7,53.9,54.3,54.1,53.7,53.3,52.7,52.9,52.5,53.9,53.5,54.1,54.1,54.7,54.9,54.9,54.1,53.3,52.9,53.7,53.9,54.3,54.1,54.5,54.7,54.9,52.1,52.9,53.5,52.7,53.1,53.1,53.5,52.9,52.9,53.1,53.3,52.7,53.5,53.9,54.9,55.1,54.3,55.1,54.3,54.3,53.9,54.5,54.5,54.3,55.3,54.5,54.9,53.5,52.1,55.3,55.7,55.7,55.5,54.5,57.7,54.7,53.7,53.1,53.7,55.9,56.1,53.9,53.7,53.3,53.9,53.9,54.5,54.7,56.1,55.7,53.1,53.7,53.5,53.9,53.9,53.5,53.3,53.1,52.5,55.9,55.7,54.1,54.3,54.1,54.1,54.5,54.5,55.1,53.1,53.3,54.1,54.3,53.9,54.1,54.7,54.7,53.7,53.1,53.3,52.7,53.5,52.9,53.7,56.5,56.1,55.7,55.5,56.9,57.7,56.5,55.7,54.1,54.7,55.7,55.5,53.1,52.7,53.1,53.3,53.5,54.3,54.1,54.5,54.7,55.7,55.5,54.1,54.3,54.7,53.1,53.3,53.1,52.7,53.1,53.7,53.1,54.7,54.5,55.1,54.7,54.5,56.1,55.7,53.3,52.5,53.7,54.1,53.3,52.1,52.3,53.1,53.3,53.5,53.3,53.1,52.7,53.1,55.7,55.1,54.3,53.7,53.1,52.9,53.1,52.7,52.5,53.1,53.5,53.1,53.3,54.1,55.1,54.9,56.1,55.7,56.5,54.7,53.7
2. excel怎样画双对数图
1、电脑打开Excel表格，然后输入对数公式=log，然后选择第一个LOG。
2、点击选择LOG后，就可以看到要输入数值和底数。
3、先输入数值，以64为例，然后输入逗号，在输入底数2。 3、输入公式后，按回车键。
4、就可以得到64以2为底的对数了。
3. 如何用excel绘制双对数曲线
1、打开电脑，然后点击打开excel中准备好的工作表，然后点击插入选项，然后点击图表选项，然后点击散点图选项；
2、然后新建一个图表，然后在图标页面的上方菜单栏中添加系列－选择X轴数据和Y轴数据；
3、双击X轴，弹出X轴坐标轴格式，修改X轴数据，对数图表是以10为底，所以刻度单位选10，把下面对数刻度打上勾，Y轴与X轴相同；
4、修改完后点击图表选项，将网格线中的X轴和Y轴全部勾上，点击确定按钮，这样就完成对数图表的绘制。
4. excel绘制双对数曲线的方法
1、首先双击桌面上的excel图标打开excel。
2、在excel中输入做曲线拟合的数据。
3、选中所有输入的数据。
4、点击上边栏中的插入。
5、选择插入弹出框中的图表选项。
6、当弹出图表向导弹出框时，点击左边的XY散点图。
7、选择子图表类型中的第一个。
8、点击图表向导对话框最下方的完成。
9、此时会根据数据生成一个图表。
10、选择图表中的任意一个点，图表中的所有点都会被选中。
11、右键点击任意一个点，选择添加趋势线。
12、此时会弹出添加趋势线对话框，选择类型中的第一个。
13、点击选项，勾选下方的显示公式和显示R平方值选项。
14、点击对话框下方的确定。
15、此时数据的曲线拟合的公式可以了。
5. excel绘制双对数曲线怎么内插
具体的操作步骤如下
1、电脑打开Excel表格，然后输入对数公式=log，然后选择第一个LOG。
2、点击选择LOG后，就可以看到要输入数值和底数。
3、先输入数值，以64为例，然后输入逗号，在输入底数2。
3、输入公式后，按回车键。
4、就可以得到64以2为底的对数了。
6. excel怎么绘制双对数坐标
1、打开一个excel表格：
2、在表格内输入需要插入的数据，这里模拟了一组数据：
3、选中表格数据后，点击上方的插入：
4、点击推荐的图表：
5、图表类型选择XY散点图：
6、插入完成的图表：
7、右键点击X轴，选择设置坐标轴格式：
8、在右侧的对数刻度打勾：
9、在Y轴同样的操作，右键点击后选择设置坐标轴格式：
10、同样点击对数刻度：
11、设置完成的效果：
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