ConversionOfDatatypes-I
>>> s = pd.Series(["8", 6, "7.5", 3, "0.9"]) # mixed string and numeric values
>>> s
0 8
1 6
2 7.5
3 3
4 0.9
dtype: object
>>> pd.to_numeric(s) # convert everything to float value
0 8.0
1 6.0
2 7.5
3 3.0
4 0.9
dtype: float64
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