I have this input:
    user_id currency  amount
0         1      eur     570
1         2      btc     510
2         2      eur     282
3         3      eur     822
4         3      usd     655
and would like to turn it into this output:
user_id   eur    btc    usd
1         570    0      0
2         282    510    0
3         822    0      655
Any ideas? thanks!
 
    