How can I replace comma with dot in arrays of strings in python?-CodePudding

Array of strings

Hi, I have this array of strings but I can't convert it in an array of floats, I think because of the comma. So there is a way to convert comma in dot or convert directly arrays of strings in an array of floats?

CodePudding user response：

We can try replacing the comma with period and then casting:

df["col"] = df["col"].str.replace(',', '.', regex=False).astype(float)

CodePudding user response：

Assuming you're dealing with a 1D array named arr:

new_arr = np.array([float(elem.replace(',', '.')) for elem in arr])

Or:

new_arr = np.char.replace(arr, ',', '.').astype(float)