在plt.text(matplotlib.pyplot.text)中使用占位符(％d，％s) [英] Using placeholders (%d,%s) in plt.text (matplotlib.pyplot.text)

问题描述

我在使用 plt.text 命令为带注释的文本(在本例中为平均值和标准差)分配数值时遇到问题.

I am facing an issue in assigning a numerical value to the annotated text (mean and standard deviation in this case) using plt.text command.

由于我有六个子图，因此我想使这一过程自动化，而不是一个一个地编写.包含该问题的代码段附在下面:

Since I have six subplots, I want to automate this process instead of writing it one by one. The code snippet containing the problem is attached below:

# var=dictionary containing output variables
  b=1
> for i in var: 
>    
>     # Created Subplots for different vectors (includes labelling of axes) here

      # Mean[] is an array containing mean values for all the plots

      plt.text(X_cord,Y_cord, r'$\mu=$' %d, %d (Mean[b-1]), fontsize=14) 
>       
>     #tick-properties
>    
>     # Setting limits for axes
>     b+=1

我对 Python 还很陌生，因此不太了解如何在 Python 中使用占位符.我在网上搜索，但修复没有太大帮助.

I am fairly new to Python, therefore don't know much about how to use placeholders in Python. I searched through the web but the fixes did not help much.

我的问题有两个:我可以使用 plt.text 下的占位符 (%d) 来调用包含所有手段的数组元素吗?如果是，那么如何?

My question is two folds: Can I use the placeholder (%d) under plt.text to call an element of an array containing all the means? If yes then how?

推荐答案

尝试以下操作:

for i, _ in enumerate(var): 
    plt.text(X_cord,Y_cord, r'$\mu=%s$' % (Mean[i]), fontsize=14)

我更喜欢使用字符串方法.format:

I prefer to use the string method.format:

for i, _ in enumerate(var): 
    plt.text(X_cord,Y_cord, r'$\mu={}$'.format(Mean[i]), fontsize=14)

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