motorcar | A wayland compositor to explore | Video Utils library

The reason is that [ is still a data.frame with one column (if we don't use ,) and so here the unit is a single column.

We can use substring :

Your current constructor requires an engine is already created

I think you can solve it by transforming your data into an igraph object and use the functionalities in the igraph library. You need to establish the Edges and Vertex as well as weight values. In igraph an Edge is a link representing a connection among two nodes (Source and Target). In this case, a link is a "street" and the points are the nodes.

After running into the same issue on my Mac, I solved it by increasing the memory available to Docker. Look for the whale icon on the menubar, click then select Preferences > Advanced. Change the slider to a higher amount, press Apply & Restart, then try running again.

https://docs.docker.com/docker-for-mac/#memory

I could run within the 2GB default limit with a 415MB file (Canada > British Columbia) but nothing larger. Given the England file is 422MB, you can probably increase to 4GB and have it work. (Trying to run for all of Canada, a 2.4GB file, needed >8GB of RAM.)

Try this code:

I don't believe that utility lets you use named subvalues. At any rate, this value seems to work fine:

From what i inferred is that you have a button on your detail view controller and on pressing that button you want to delete the cell for which the current detail view controller exists.

Your approach should be such that when you are in the detail view controller, you should pass the index of the cell from which you came.

Now when the user click the button, you can use a bool that would check or be passed back to your table view.

When the user clicks button, and goes back to the table, you should be actually passing both the index and flag, then in your viewwillappear of the tableview class, you could check that on the basis of the flag whether you should delete the selected index or not, if index is set to be deleted, then you should simply use the index to remove the item from cars and cars-logo array and reload your tableview.

These could be improved a lot but this should be enough as a starting point.

Assuming you only want name and highway and nothing else in the result (no reference to nodes), you should turn to CSV output format: