data loading

[Nathan Pace]

I am running MRO 3.2.3 and RStudio 0.99.893 on Intel Mac OS X 10.11.3 (32 GB RAM, 500 GB free disc space).

From the console in RStudio I can load a 6.8 M row 8 variable file in about 10 seconds using the command               load(file = 'Data/rawData_NoCodes.RData')

When I Knit PDF the markdown file containing that code at line 93

the knit fails with the following message:

Line 92 Error in lazyLoadDBinsertVariable(vars[i], from, datafile, ascii compress, : long vectors not

             supported yet: ../../../R-3.2.2/src/main/connections.c:5626 Calls: <Anonymous> ... <Anonymous> ->

             <Anonymous> -> lazyLoadDBinsertVariable Execution halted

The first two chunks in the markdown file are:

```{r checkpoint, include = F}

library(checkpoint)

checkpoint('2016-04-01')

                                                                        

```

```{r setwd, include = F}

library(knitr)

opts_knit$set(root.dir = '..')

knitr::opts_chunk$set(echo = T)

```

The following libraries are specified:

library(codetools)

library(data.table)

library(dplyr)

Not sure if this is a MRO problem or a RStudio problem.

I am unable to debug this problem.

Nathan

[adev...@microsoft.com]

Hi, Nathan

I won't be able to debug your problem without having all of the source code.

I would suggest this approach:

• Systematically attempt to find the root cause of your problem by simplifying your code.
• If you think the problem is in the load() statement, then create a markdown file that contains only this line
• Remove the checkpoint() from the markdown and see if this makes a difference

By doing this, you will eventually have either a solution to your problem, or a minimally reproducible example.

If you still can't trace the problem, then please post a minimally reproducible example.

Good luck

Andrie