How can I line a Pandas dataframe from a list that contains variables?

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So guys, I’m having a problem that basically works in a simplified way like this

# Eu criei um DataFrame a partir do pandas
import pandas as pd
Colunas = ["A","B","C","D"]
df = pd.DataFrame(columns = Colunas)

And let’s say I have a list of initial values

DadosIniciais = [X,Y,Z,W]

where XYZW are float values that arise from simple mathematical operations. What would be the most effective method to add this list of XYZW values as the first line of Dataframe?

python pandas

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1 answer

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One possibility is to create Dataframe from a list dictionary, as indicated in this question.

In your case, we would have:

import pandas as pd
import random
Colunas = ["A","B","C","D"]
X=random.random()
Y=random.random()
Z=random.random()
W=random.random()
Dadosiniciais=[X,Y,Z,W]

df = pd.DataFrame({k:[v] for k, v in zip(Colunas,Dadosiniciais)})

print(df)

Returns:

          A         B         C         D
0  0.437675  0.321801  0.847752  0.480337

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