How to rename a single column in a data frame

Question

I'm aware that if I have a data frame with more than one column, I can make use of

colnames(x) - colnames(x) - colnames(x) - colnames(x ("col1","col2")

to change the names of the columns If there is only one column, how do you do it? A vector or data frame with only one column is referred to as a single-column vector or data frame.

Example:

trSamp - data.frame(sample(trainer$index, 10000), trSamp - trSamp - trSamp - trSamp - trSamp

the top (trSamp )

# sample.trainer.index..10000; # sample.trainer.index..10000; # sample.trainer.index

5907862 is a telephone number.

2181266# 2181266# 2181266# 2181266

7368504 is the third number.

1949790 (#4)

3475174 # 5

6062879 is a telephone number.

ncol(trSamp)

1 # [1]

class(trSamp)

# "data.frame" is the first item on the list.

class(trSamp[1])

# "data.frame" is the first item on the list.

class(trSamp[,1])

# [numeric] # [numeric] # [numeric] # [numeric] #

colnames(trSamp)[2] - "newname2" colnames(trSamp)[2] - "newname2"

# Names(x) error - value:

# The length of the 'names' property [2] must be the same as the vector [1].

I'm aware that if I have a data frame with more than one column, I can make use of

colnames(x) - colnames(x) - colnames(x) - colnames(x ("col1","col2")

to change the names of the columns If there is only one column, how do you do it? A vector is a type of data that can be represented in a number of

Answer 1

data.rename(columns={'gdp':'log(gdp)'}, inplace=True)

The rename show that it accepts a dict as a param for columns so you just pass a dict with a single entry.