使用 R 读取包含科学数字的 csv 文件

Question

I am trying to read a csv file containing a column with scientific values.

My csv file looks like this:

My script code is the following:

data <- read.csv('data_physico_qpcr_analyse.csv',sep=";")
head(data)

The problem is that the column with the scientific values is formatted as character type and not as numeric.

I have attempted to convert the column with the following syntax:

data <- read.csv('data_physico_qpcr_analyse.csv',sep=";",colClasses=c("character","character","numeric","character","character","character",))

I have tried to convert the column to numeric in excel as well, but the comma always stays in the format.

How do I convert the cible__par_g column to numeric type using R?

Answer 1

Have you tried the following?:

options(scipen=999)

This usually returns the non-scientific values, but I am not sure if it will help your case when loading in from excel.