4 回答

TA貢獻(xiàn)1873條經(jīng)驗(yàn) 獲得超9個(gè)贊
用于*y
將所有列數(shù)據(jù)(x 列之后)存儲(chǔ)在 y 變量中。delimite=' '
如果您的數(shù)據(jù)是空格分隔的,請(qǐng)使用。
因此,只需在加載文件時(shí)進(jìn)行此更正并保留其他代碼即可): x, *y = np.loadtxt(file_name, delimiter=',', unpack=True)
結(jié)果:

TA貢獻(xiàn)1877條經(jīng)驗(yàn) 獲得超6個(gè)贊
用于
pandas.read_csv
讀入文件,并將第0列設(shè)置為索引根據(jù)所示示例使用
sep='\\s+'
,但如果它不是 OP 中的內(nèi)容,請(qǐng)使用適當(dāng)?shù)姆指舴?/p>根據(jù)示例,使用
header=None
,但根據(jù)文件需要進(jìn)行更改。
用于
pandas.DataFrame.plot
在 1 行中繪制數(shù)據(jù)框。此外,使用的好處
pandas
是現(xiàn)在可以輕松分析數(shù)據(jù)。嘗試df.describe()
獲取按列的統(tǒng)計(jì)數(shù)據(jù)。
import pandas as pd
# read the file
df = pd.read_csv('file.txt', sep='\\s+', header=None, index_col=0)
# add column names if desired; the list must have as many values as there are columns
df.columns = ['a', 'b', 'c', 'd']
# plot the data
df.plot(figsize=(7, 4), xlabel='Action', ylabel='Rate', title='Plot of Rate')
數(shù)據(jù)匯總統(tǒng)計(jì)
df.describe()
? ? ? ? ? ? ?a? ? ? ?b? ? ? ? c? ? ? ? d
count? 4.00000? ?4.000? 4.00000? 4.00000
mean? ?4.75000? 11.750? 1.94944? 0.04006
std? ? 3.20156? ?7.932? 1.30055? 0.02926
min? ? 0.00000? ?0.000? 0.00000? 0.00000
25%? ? 4.50000? 10.500? 1.90036? 0.03021
50%? ? 6.00000? 15.000? 2.57312? 0.04554
75%? ? 6.25000? 16.250? 2.62220? 0.05539
max? ? 7.00000? 17.000? 2.65154? 0.06918

TA貢獻(xiàn)1848條經(jīng)驗(yàn) 獲得超6個(gè)贊
請(qǐng)檢查片段
import matplotlib.pyplot as plt
import pandas as pd
import matplotlib.ticker as ticker
df = pd.read_csv('samp.txt', sep=" ", header=None)
df.columns = ["x", "y1", "y2", "y3","y4"]
print(df)
fig, ax = plt.subplots()
ax.plot(df['x'],df['y1'], label='Line1')
ax.plot(df['x'],df['y2'], label='Line2')
ax.plot(df['x'],df['y3'], label='Line3')
ax.plot(df['x'],df['y4'], label='Line4')
tick_spacing = 1
ax.xaxis.set_major_locator(ticker.MultipleLocator(tick_spacing))
plt.xlabel('Action')
plt.ylabel('Rate')
plt.title('Plot of Rate')
plt.legend()
plt.show()

TA貢獻(xiàn)1911條經(jīng)驗(yàn) 獲得超7個(gè)贊
所以首先我將數(shù)據(jù)加載到 4 個(gè)變量中,其中一個(gè)是 x,其中三個(gè)是 y1、y2、y3,然后我只使用該方法三次以創(chuàng)建'plot'三個(gè)不同的圖形
import matplotlib.pyplot as plt
import numpy as np
file_name = input("Enter the file name:")
data = np.loadtxt(file_name, delimiter=',', unpack=True)
x = data[0]
y1 = data[1] # the first graph
y2 = data[2] # the second graph
y3 = data[3] # the third graph
y4 = data[4] # the fourth graph
plt.plot(x,y1, label='y1')
plt.plot(x,y2, label='y2')
plt.plot(x,y3, label='y3')
plt.plot(x,y4, label='y3')
plt.xlabel('Action')
plt.ylabel('Rate')
plt.title('Plot of Rate')
plt.legend()
plt.show()
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