I am sorry for asking such a simple question (yes I googled). Do I really require 2 steps to map a simple pandas series of float between 0 and 1s to 0 and 1s given a threshold. This is the reproducible example:

```
series = pd.Series([0.0, 0.3, 0.6, 1.0])
threshold = 0.5
print(series)

series[series > threshold] = 1.0
series[series <= threshold] = 0.0

print(series)

```

It works producing:

```
0    0.0
1    0.0
2    1.0
3    1.0

```

from:

```
0    0.0
1    0.3
2    0.6
3    1.0

```