changing case in pandas dataframe

Question

I have a pandas dataframe x :

sequence score
AAtttGG   2
CCCgttT   3

I want the output

sequence score
AATTTGG   2
CCCGTTT   3

so that all sequences are uppercase. I would appreciate a oneliner that will do this.

EdChum · Accepted Answer · 2015-02-25 21:15:51Z

1

Call the vectorised str method upper:

In [98]:

df.sequence = df.sequence.str.upper()
df
Out[98]:
  sequence  score
0  AATTTGG      2
1  CCCGTTT      3

answered Feb 25, 2015 at 21:15

EdChum

397k204 gold badges836 silver badges583 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1