Save array into Managed Folder from R Notebook

nadine

Hi

I want to save a data object from an R notebook in a managed folder on DSS so it can be read by a Jupyter notebook.

I am using

# data must be a connection providing the data to upload
data = c(0,1.1,2.2,3.3)
dkuManagedFolderUploadPath("folder_name", "path_in_folder", data)

To upload the data but I am getting the following error:

Error in readBin(arr, double(), 6, size = 4): can only read from a binary connection
Traceback:

1. readBin(arr, double(), 6, size = 4)

How can I solve this readBin error?

---

Operating system used: Windows

Zach

Hi @nadine
,

dkuManagedFolderUploadPath expects a connection object, not a vector. You'll need to save your data object to a temporary file first:

# Save `data` to a managed folder
library(dataiku)

data = c(0,1.1,2.2,3.3)
temp_filename <- tempfile("r-managed-folder-")
save(data, file=temp_filename)
temp_connection <- file(temp_filename, "rb")
dkuManagedFolderUploadPath("folder_name", "path_in_folder", temp_connection)

You can then load the data object using the following code:

# Load `data` from a managed folder
library(dataiku)

raw_data <- dkuManagedFolderDownloadPath("folder_name", "path_in_folder", as="raw")
temp_filename <- tempfile(pattern="r-managed-folder-")
writeBin(raw_data, temp_filename)
load(temp_filename)
cat(data, sep="\n")

Thanks,

Zach