我有一個在 pdf 檔案中包含文本的表格
我使用 tabula 從 pdf 檔案中提取表格
file1 = "path_to_pdf_file"
table = tabula.read_pdf(file1,pages=1,lattice=True)
table[0]
但是，最終結果如下所示：
有沒有辦法將 pdf 中表格的換行符或換行文本解釋為自己的行？沒有多余的行？
使用表格的最終結果應該是這樣的：
uj5u.com熱心網友回復：
您需要添加一個引數。代替
file1 = "path_to_pdf_file"
table = tabula.read_pdf(file1,pages=1)
table[0]
和
file1 = "path_to_pdf_file"
table = tabula.read_pdf(file1,pages=1, lattice = True)
table[0]
所有這些都根據這里的檔案
這是一個例子：
參見文章“https://effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-guidance-tests-bias_methods.pdf”
import tabula
import io
import pandas as pd
file1 = r"C:\Users\s-degossondevarennes\.......\Desktop\methods-guidance-tests-bias_methods.pdf"
table = tabula.read_pdf(file1,pages=3,lattice=True, )
df = table[0]
df = df.drop(['Unnamed: 1','Unnamed: 2','Description','Unnamed: 3'],axis=1)
df
回傳：
Unnamed: 0 \
0 NaN
1 Spectrum effect
2 Context bias
3 Selection bias
4 NaN
5 Variation in test execution
6 Variation in test technology
7 Treatment paradox
8 Disease progression bias
9 NaN
10 Inappropriate reference\rstandard
11 Differential verification bias
12 Partial verification bias
13 NaN
14 Review bias
15 Clinical review bias
16 Incorporation bias
17 Observer variability
18 NaN
19 Handling of indeterminate\rresults
20 Arbitrary choice of threshold\rvalue
Source of Systematic Bias
0 Population
1 Tests may perform differently in various sampl...
2 Prevalence of the target condition varies acco...
3 The selection process determines the compositi...
4 Test Protocol: Materials and Methods
5 A sufficient description of the execution of i...
6 When the characteristics of a medical test cha...
7 Occurs when treatment is started on the basis ...
8 Occurs when the index test is performed an unu...
9 Reference Standard and Verification Procedure
10 Errors of imperfect reference standard bias th...
11 Part of the index test results is verified by ...
12 Only a selected sample of patients who underwe...
13 Interpretation
14 Interpretation of the index test or reference ...
15 Availability of clinical data such as age, sex...
16 The result of the index test is used to establ...
17 The reproducibility of test results is one det...
18 Analysis
19 A medical test can produce an uninterpretable ...
20 The selection of the threshold value for the i...
列中的三個點Source of Systematic Bias顯示該單元格中的所有內容，我將換行符視為單個單元格（專案），而不是多個單元格。另一個證明是
df.iloc[2,1]
回傳單元格內容：
'Prevalence of the target condition varies according to setting and may affect\restimates of test performance. Interpreters may consider test results to be\rpositive more frequently in settings with higher disease prevalence, which may\ralso affect estimates of test performance.'
你的 pdf 一定有一些東西。如果網上有，請分享鏈接，我去看看。
轉載請註明出處，本文鏈接：https://www.uj5u.com/qukuanlian/411407.html
標籤：