[英]How to plot a seaborn ridge plot
使用seaborn 0.11,我想繪制一個seaborn ridge plot
我想在一個圖中繪制磁譜數據。 所以y軸只計算圖的數量,x軸使用 數據。 這是我所期待的一個例子。
這些是不同角度的光譜數據。 有沒有辦法在python中繪制這樣的東西? 提前致謝。
import matplotlib.pyplot as plt
data = np.loadtxt("0_deg.txt", skiprows=0, dtype=np.float128)
fig, ax = plt.subplots(figsize=(8, 6))
ax.plot(data, markersize=1, label="0° ")
數據看起來像這樣
269.09019 0.10781
269.09208 0.10908
269.09397 0.11928
269.09587 0.11800
269.09776 0.11418
269.09966 0.11545
269.10155 0.11928
269.10344 0.11673
269.10534 0.10781
269.10723 0.10526
269.10913 0.11418
269.11102 0.11418
269.11292 0.11291
269.11481 0.11928
269.11670 0.11928
269.11860 0.12055
269.12049 0.11928
269.12239 0.11928
269.12428 0.11673
269.12618 0.11545
269.12807 0.11545
269.12996 0.11036
269.13186 0.10908
269.13375 0.10144
269.13565 0.10908
269.13754 0.10654
269.13943 0.10399
269.14133 0.10526
269.14322 0.11418
269.14512 0.10908
269.14701 0.10272
269.14891 0.09889
269.15080 0.10526
269.15269 0.09889
269.15459 0.09635
269.15648 0.09889
269.15838 0.10017
269.16027 0.09507
269.16217 0.08998
269.16406 0.09507
269.16595 0.08870
269.16785 0.09252
269.16974 0.09762
269.17164 0.09889
269.17353 0.09507
269.17542 0.10017
269.17732 0.10399
269.17921 0.10144
269.18111 0.09762
269.18300 0.10144
269.18490 0.10144
269.18679 0.09635
269.18868 0.10017
269.19058 0.10399
269.19247 0.10017
269.19437 0.10017
269.19626 0.09889
269.19816 0.10017
269.20005 0.09507
269.20194 0.09635
269.20384 0.09380
269.20573 0.09252
269.20763 0.08998
pathlib
和.glob
查找目錄中的所有文件pandas.DataFrames
list
中
-1
的值作為每組數據的'label'
列值。 該值為0deg
、 10deg
等。
f = WindowsPath('data/CuSo4_10mV_300mS_Amod9.44V_0deg')
作為pathlib
對象
f.suffix
是'.44V_0deg'
f.suffix.split('_')[-1]
是'0deg'
'label'
列,以便可以為每條繪圖線識別正確的'intensity'
值。pandas.concat
組合數據pandas.concat
列表。import seaborn as sns
import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns
sns.set_theme(style="white", rc={"axes.facecolor": (0, 0, 0, 0)})
# find the local files
p = Path('c:/somepathtofiles') # p = Path.cwd() # for data in the current working directory
files = list(p.glob('*.44V*'))
# load all the data, but create a dataframe in the correct form for a RidgePlot
dfl = list()
for f in files:
v = pd.read_csv(f, sep='\\s+', header=None, usecols=[1])
v.columns = ['intensity']
v['label'] = f.suffix.split('_')[-1]
dfl.append(v)
# combine the list of dataframes into a single dataframe
df = pd.concat(dfl)
# plot
# Initialize the FacetGrid object
pal = sns.cubehelix_palette(len(df.label.unique()), rot=-.25, light=.7)
g = sns.FacetGrid(df, row="label", hue="label", aspect=15, height=.5, palette=pal)
# Draw the densities in a few steps
g.map(sns.kdeplot, "intensity", bw_adjust=.5, clip_on=False, fill=True, alpha=1, linewidth=1.5)
g.map(sns.kdeplot, "intensity", clip_on=False, color="w", lw=2, bw_adjust=.5)
g.map(plt.axhline, y=0, lw=2, clip_on=False)
# Define and use a simple function to label the plot in axes coordinates
def label(x, color, label):
ax = plt.gca()
ax.text(0, .2, label, fontweight="bold", color=color, ha="left", va="center", transform=ax.transAxes)
g.map(label, "intensity")
# Set the subplots to overlap
g.fig.subplots_adjust(hspace=-.25)
# Remove axes details that don't play well with overlap
g.set_titles("")
g.set(yticks=[])
g.despine(bottom=True, left=True)
# uncomment the following line if there's a tight layout warning
# g.fig.tight_layout()
import pandas as pd
import matplotlib.pyplot as plt
from pathlib import Path
###########################################################
# Use if loading the data from the local computer
# create the path to the files
p = Path('c:/somepathtofiles')
# if loading the data from the local computer
# get a generator of all the files
files = p.glob('*.44V*')
# load the files into a dict of pandas.DataFrames
dfd = {f'{file.suffix.split("_")[-1]}': pd.read_csv(file, sep='\\s+', header=None) for file in files}
###########################################################
# Use if loading data from GitHub
# don't use both lines for files.
files = [f'https://raw.githubusercontent.com/mahesh27dx/NPR/master/CuSo4_10mV_300mS_Amod9.44V_{v}deg' for v in range(0, 190, 10)]
# load the files into a dict of pandas.DataFrames
dfd = {f'{file.split("_")[-1]}': pd.read_csv(file, sep='\\s+', header=None) for file in files}
###########################################################
# iterate through the dict
plt.figure(figsize=(10, 8)) # set up plot figure
for k, v in dfd.items():
dfd[k].columns = ['mag_field', 'intensity']
sns.lineplot(x='mag_field', y='intensity', data=v, label=k)
plt.legend(bbox_to_anchor=(1.05, 1), loc='upper left')
plt.xlabel('Magnetic Field')
plt.ylabel('Field Intensity')
plt.show()
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