Friday, July 8, 2022

Adjusting column width in Excel using R

Autifit excel column width


Introduction

Not all columns in the excel are of equal width and there are situations where we have to manually set the column width so that the details are not hidden.In this blog we will look at how we can set the column width using openxlsx library

package.name<-c("dplyr","openxlsx")

for(i in package.name){

  if(!require(i,character.only = T)){

    install.packages(i)
  }
  library(i,character.only = T)

}


Step 1: Import the iris dataset

data(iris)
head(iris)
  Sepal.Length Sepal.Width Petal.Length Petal.Width Species
1          5.1         3.5          1.4         0.2  setosa
2          4.9         3.0          1.4         0.2  setosa
3          4.7         3.2          1.3         0.2  setosa
4          4.6         3.1          1.5         0.2  setosa
5          5.0         3.6          1.4         0.2  setosa
6          5.4         3.9          1.7         0.4  setosa
iris$Species<-as.character(iris$Species)


Step 2: Adding a lengthy string

iris[1,"Species"]<-"Dummy_Value_For_Testing_Purpose"
head(iris)
  Sepal.Length Sepal.Width Petal.Length Petal.Width
1          5.1         3.5          1.4         0.2
2          4.9         3.0          1.4         0.2
3          4.7         3.2          1.3         0.2
4          4.6         3.1          1.5         0.2
5          5.0         3.6          1.4         0.2
6          5.4         3.9          1.7         0.4
                          Species
1 Dummy_Value_For_Testing_Purpose
2                          setosa
3                          setosa
4                          setosa
5                          setosa
6                          setosa


Step 3: Writing the file without adjusting the column width

write.xlsx(iris, "iris_data1.xlsx")


Step 4: Checking Output excel file


We can see that the first row for the Species column overflows into the next column.Hence we need to adjust the column width before wiriting the data into an excel file.


Step 5: Adjusting the column width

write.xlsx(iris, "iris_data2.xlsx",colWidths = rep("auto",dim(iris)[2]))


Step 6: Checking Output excel file

Now the column width of Species column has been adjusted to accommodate the maximum length value in the column.


In the next few blogs, we will look at how to format values within an excel file.

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