Here's my dataframe

```
      A       B        C        D
1     0    0.41     0.35     0.61
2     0    0.41     0.35        0
3     0    0.21        0        0
4  0.11     0.4     0.53        0

```

I want to only display columns or rows that contains value more than 0.5, like this

```
       C        D
1    0.35     0.61
4    0.53        0

```

How suppose I should do that