从数据集在 seaborn 的线图中创建多条线

Question

我有一个大数据集，我想在 seaborn 中将其绘制为线图。

我的数据集由不同数据中特定植物的不同测量值组成，所以基本上我想将数据集中的每一行绘制为折线图中的一条线，正如我试图在此图像中演示的那样:

为了这个目标，我尝试将 seaborn 与下一个代码一起使用：

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns

####THERE WAS MORE PROCESSING OF THE DATA THAT I BELIEVE IS IRRELEVANT

####Here I have tried to determine what I want in my axis. I haven't really use the value wavelength

#X axis
wavelength=new_db.columns.values[5:] 

#y axis- values
#basically the outcome of this suppose to be a table with only values when ach row represents a hour
colum=new_db.columns.tolist()
new_db=new_db[cols[1:]]

#here i'm trying to create the plot
sns.set(style="whitegrid")
sns.lineplot(data=new_db, palette="tab10", linewidth=2.5)

#ERROR

ValueError: These style levels are missing dashes: set(['747.5', '814.81', '842.44', '906.34', '433.71', '667.2', '431.09', '512.97', '850.75', '882.67', '751.61', '911.92', '601.11', '847.98', '917.5', '828.61', '679.4', '440.29', '705.21', '729.74', '421.9', '959.5', '648.26', '956.69', '446.87', '445.55', '727.01', '605.14', '506.33', '856.29', '531.58', '889.63', '576.97', '924.49', '503.68', '897.98', '707.93', '970.73', '953.89', '839.67', '510.31', '678.04', '772.17', '473.24', '659.08', '813.43', '442.92', '781.78', '688.9', '623.98', '684.82', '634.76', '834.14', '955.29', '575.63', '589.03', '817.57', '474.56', '638.81', '935.68', '454.77', '571.62', '871.55', '587.69', '987.61'...............

（原始消息更长，数字更多。）

我也试过用这个来创建它：

sns.set(style="whitegrid")
ax = sns.lineplot(x="wavelength", y="new_db")

但出现此错误：

ValueError: Could not interpret input 'wavelength'

不知道怎么解决

这是我最终想要得到的产品：

Answer 1

转置你的 DataFrame 怎么样？

import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns

df = pd.DataFrame(np.random.rand(3, 10)).T
print(df)

数据框：

          0         1         2
0  0.341005  0.925077  0.541746
1  0.324769  0.558320  0.902804
2  0.647871  0.630663  0.607212
3  0.722298  0.745091  0.630445
4  0.209836  0.386576  0.076790
5  0.347911  0.237178  0.446102
6  0.174991  0.777129  0.109934
7  0.022564  0.388223  0.464438
8  0.359771  0.722761  0.837942
9  0.091696  0.474859  0.840078

情节

sns.lineplot(data=df.iloc[:, :2])

结果：

Answer 2

我认为破折号样式列表的默认长度是6。如果你想要更多样式，你必须手动定义它们并通过以下方式添加它们：

dash_styles = ["",
               (4, 1.5),
               (1, 1),
               (3, 1, 1.5, 1),
               (5, 1, 1, 1),
               (5, 1, 2, 1, 2, 1),
               (2, 2, 3, 1.5),
               (1, 2.5, 3, 1.2),
                # etc 
               ]

sns.lineplot(...,  dashes=dash_styles,...)

Answer 3

只需输入 dashes=False，它应该可以解决您的问题，然后您可以使用各种参数在此基础上进行构建。

sns.lineplot(data=df,  dashes = False)

从数据集在 seaborn 的线图中创建多条线

Creating multiple lines in lineplot in seaborn from dataset

python

pandas

line-plot

seaborn