minor ticks是什么
时间: 2023-12-05 09:04:58 浏览: 35
在 Matplotlib 中,除了主要的坐标轴刻度线外,还可以绘制较小的坐标轴刻度线,这些刻度线被称为次要刻度线或次要刻度。它们是在主要刻度之间的等间隔位置上绘制的,并用于更细粒度的轴标记。这些次要刻度线被称为“minor ticks”。您可以使用Matplotlib的“set_minor_locator”方法来控制次要刻度线的位置和数量。
相关问题
gmx xpm2ps -f dssp.xpm -o secondary-structure.eps -title none -di 1.m2p -rainbow red可以将xom文件转化成eps,请修改以下代码,使其只显示只显示alpha-helix与beta-sheet,使alpha-helix用蓝色表示,beta-sheet用黄色表示。; Command line options of xpm2ps override the parameters in this file black&white = no ; Obsolete titlefont = Times-Roman ; A PostScript Font titlefontsize = 20 ; Font size (pt) legend = yes ; Show the legend legendfont = Times-Roman ; A PostScript Font legendlabel = ; Used when there is none in the .xpm legend2label = ; Used when merging two xpm’s legendfontsize = 14 ; Font size (pt) xbox = 2.0 ; x-size of a matrix element ybox = 2.0 ; y-size of a matrix element matrixspacing = 20.0 ; Space between 2 matrices xoffset = 0.0 ; Between matrix and bounding box yoffset = 0.0 ; Between matrix and bounding box x-major = 20 ; Major ticks on x axis every … frames x-minor = 5 ; Id. Minor ticks x-firstmajor = 0 ; First frame for major tick x-majorat0 = no ; Major tick at first frame x-majorticklen = 8.0 ; x-majorticklength x-minorticklen = 4.0 ; x-minorticklength x-label = ; Used when there is none in the .xpm x-fontsize = 16 ; Font size (pt) x-font = Times-Roman ; A PostScript Font x-tickfontsize = 10 ; Font size (pt) x-tickfont = Helvetica ; A PostScript Font y-major = 20 y-minor = 5 y-firstmajor = 0 y-majorat0 = no y-majorticklen = 8.0 y-minorticklen = 4.0 y-label = y-fontsize = 16 y-font = Times-Roman y-tickfontsize = 10 y-tickfont = Helvetica
可以使用以下代码来实现只显示alpha-helix与beta-sheet,alpha-helix用蓝色表示,beta-sheet用黄色表示:
gmx xpm2ps -f dssp.xpm -o secondary-structure.eps -rainbow blue yellow -1 2 -title none -di 1.m2p
其中,-rainbow参数用来设置颜色映射,blue表示alpha-helix的颜色,yellow表示beta-sheet的颜色;-1和2表示只显示XPM文件中数值为-1和2的部分,分别对应alpha-helix和beta-sheet;-title参数设置标题为none,-di参数设置输出dpi为1.m2p。其他参数保持不变。
Error in `mapply()`: ! The `axis.ticks.y.length` theme element is not defined in the element hierarchy.
非常抱歉,我之前给出的代码中的`axis.ticks.y.length`是一个错误的参数,导致出现了错误。实际上,在ggplot2中没有直接控制刻度线长度的参数。如果你想要控制刻度线的长度,可以使用`theme()`函数中的`panel.grid.major.x`和`panel.grid.major.y`参数来调整刻度线的长度。以下是修正后的示例代码:
```R
library(ggplot2)
# 数据准备
df <- data.frame(loci = c("A", "B", "C", "D"),
In = c(0.2, 0.5, 0.3, 0.8))
# 创建柱形图
p <- ggplot(df, aes(x = loci, y = In)) +
geom_bar(stat = "identity", fill = "blue") +
geom_text(aes(label = In), vjust = -0.3, size = 16, family = "Times New Roman") +
geom_hline(yintercept = 0.1, linetype = "dashed", color = "red") +
theme(text = element_text(family = "Times New Roman", size = 16),
panel.grid.major.x = element_blank(),
panel.grid.major.y = element_line(color = "gray", size = 0.3),
panel.grid.minor = element_blank(),
panel.border = element_rect(color = "black", fill = NA))
# 显示图形
print(p)
```
这段修正后的代码会创建一个柱形图,横轴是特征变量(loci),纵轴是数值(In)。柱形的填充颜色为蓝色,柱形上方会显示对应的数值,并且字体为Times New Roman,大小为16。同时,还会在图中添加一条值为0.1的红色虚线。
修正后的代码中,使用`panel.grid.major.x = element_blank()`隐藏了横坐标刻度线,使用`panel.grid.major.y = element_line(color = "gray", size = 0.3)`来设置纵坐标刻度线的颜色为灰色,长度为0.3。
请注意,确保已经安装了ggplot2包,可以通过`install.packages("ggplot2")`来安装。