R更改NA值 [英] R Change NA values

问题描述

我的数据如下所示: http://imgur.com/8KgvWvP

My data looks like this: http://imgur.com/8KgvWvP

我想将NA的值更改为每列的另一个值. 例如，在包含NA，Single和Dual的列中，我想将所有NA更改为'Single'.

I want to change the values NA to another value for each column. For example in the column that contains NA, Single and Dual, I want to change all the NA to 'Single'.

我尝试了以下代码:

data_price$nbrSims <- ifelse(is.na(data_price$nbrSims), 'Single', data_price$nbrSims)

但是随后我的数据如下所示，其中Dual变为2和Single 1. http://imgur.com/TC1bIgw

But then my data looks like this, where Dual became 2 and Single 1. http://imgur.com/TC1bIgw

如何在不更改其他值的情况下更改NA值? 预先感谢！

How can I change the NA values, without changing the other values? Thanks in advance!

推荐答案

尝试一下(检查哪些是NA，然后将其替换为"Single"):

Try this (check which are NA and than replace them with "Single"):

data_price$nbrSims <- as.character(data_price$nbrSims)
data_price$nbrSims[is.na(data_price$nbrSims)] <- "Single"

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