R: “For Loop” is Creating a Single File Instead of Two Files

[swaheera]

I am using the R programming language. I have a "data frame" called "a" that has 2 rows and 1 column (the column is called "file.list"):

>head(a)
                                               file.list
1 C:/Users/Documents/files_i_want/1_a.pdf
2 C:/Users/Documents/files_i_want/a_1.pdf

I am trying to write a "for loop" that performs an operation using each "element" from this data frame:

library(tesseract)
library(pdftools)

for (i in 1:2)
 { 

file_i = tesseract::ocr(a[i, "file.list"]) 

}

The above code successfully runs:

Converting page 1 to 1_a_1.png... done!
Converting page 1 to a_1_1.png... done!

Problem: The above loop is only creating a single file instead of two files. Does anyone know why this is happening? Can someone please show me how to fix this problem?

Thanks

[Yarnabrina]

Two iterations of for loop write to same variable: file_i, and NOT file_1 and file_2. So, the second iteration overwrites results of first variation.

One can use assign for these purposes.

[swaheera]

thank you! I ended up solving this problem - would you like to see the answer?

[Andrzej]

Yes, please show the solution.