Category : numpy

I have a dataset in CSV which first column are dates (not datetimes, just dates). The CSV is like this: date,text 2005-01-01,"FOO-BAR-1" 2005-01-02,"FOO-BAR-2" If I do this: df = pd.read_csv(‘mycsv.csv’) I get: print(df.dtypes) date object text object dtype: object How can I get column date by datetime.date? Source: Python..

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Is it possible to do any operation for example fill in a non-rectangular slice of the NumPy array with NumPy itself? For example imaging, we have a NumPy array in which the first index in each row represents the limit. and we want to fill out of limit items with the latest element inside the ..

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I have an array of numbers in python. I saved it using the code below file = open("A.txt", "w+") for i in range(300): content = str(A[i]) file.write(content) file.close() But when I wanted to read it with this code def readFile(A): fileObj = open(‘A.txt’, "r") #opens the file in read mode words = fileObj.read().splitlines() #puts the ..

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I am trying to encode the PNG Image(input = numpy.ndarray) with Base64, and decode back to image. However, I receive the following error message. Traceback (most recent call last): File "api_client_test.py", line 46, in <module> result = np.frombuffer(bytes_np_dec, dtype=np.float64) ValueError: buffer size must be a multiple of element size Here is my code import numpy ..

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I tried to load my csv into python and got this output. code df=pd.read_csv(f"{getcwd()}AuAU 1.csv",delimiter=’,’,encoding=’cp1252′) print(df) file encoding result be ‘cp1252’ I got this output: ÿþW Unnamed: 1 Unnamed: 2 0 NaN NaN NaN 1 NaN NaN NaN 2 NaN NaN NaN …. 55150 NaN NaN NaN AU 1.csv Wavelength (nm),Absorbance (AU),Std.Dev. ਍㄀㤀 Ⰰ ⸀㈀㤀㈀㜀㌀㠀㤀㄀㐀㐀㠀㤀㜀㐀㘀Ⰰ ⸀ 㠀㈀㌀㌀㈀㤀㘀㐀㐀㠀㔀㜀㜀㌀㐀ഀഀ 191,0.0829615592956543,0.0572289788579017 ਍㄀㤀㈀Ⰰ ⸀㈀ ㈀㤀㠀㠀㄀㐀㜀㜀㌀㔀㔀㤀㘀Ⰰ ⸀ 㜀㤀㈀ 㠀㐀㤀 ㄀㌀㈀㐀㄀㤀㘀ഀഀ ..

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Currently I am trying to fit a function to a histogram with three datasets. I have got the code for the histogram from the matplotlib gallery (https://matplotlib.org/2.0.2/examples/statistics/multiple_histograms_side_by_side.html). I want to fit my first set of data where #curvefit is written but I don’t know, which value I should give for vx because the variable vx ..

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