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Convert pandas dataframe to NumPy array
I am interested in knowing how to convert a pandas dataframe into a NumPy array.
dataframe:
import numpy as np
import pandas as pd
index = [1, 2, 3, 4, 5, 6, 7]
a = [np.nan, np.nan, np.nan, 0.1, 0.1, 0.1, 0.1]
b = [0.2, np.nan, 0.2, 0.2, 0.2, np.nan, np.nan]
c = […
ValueError: setting an array element with a sequence
This Python code:
import numpy as p
def firstfunction():
UnFilteredDuringExSummaryOfMeansArray = []
MeanOutputHeader=['TestID','ConditionName','FilterType','RRMean','HRMean',
'dZdtMaxVoltageMean','BZMean','ZXMean','LVETMean','Z0Mean',
'StrokeVolumeMean','CardiacOutputMean','VelocityIndexMean']
dataMatrix = BeatByBeatMatrixOfMatrices[column]
roughTrimmedMatrix = p.array(dataMatrix[1:,1:17])
trimmedMatrix = p.array(roughTrimmedMatrix,dtype=p.float64) #ERROR …