nicepro

Defining the midpoint of a colormap in matplotlib I want to set the middle point of a colormap, ie my data goes from -5 to 10, i want zero to be the middle. I think the way to do it is subclassing normalize and using the norm, but i didn't find any example and it is not clear to me, what exactly i have to implement. Note that in matplotlib version 3.1 the DivergingNorm class was added. I think i..

Git commit -a “untracked files”? When I do a git commit -a, I am seeing the following: # Please enter the commit message for your changes. Lines starting # with '#' will be ignored, and an empty message aborts the commit. # On branch better_tag_show # Changes to be committed: # (use "git reset HEAD ..." to unstage) # # modified: ../assets/stylesheets/application.css # modified: ../views/pages/ho..

Invalid cast from 'System.Int32' to 'System.Nullable`1[[System.Int32, mscorlib]] Type t = typeof(int?); //will get this dynamically object val = 5; //will get this dynamically object nVal = Convert.ChangeType(val, t);//getting exception here I am getting InvalidCastException in above code. For above I could simply write int? nVal = val, but above code is executing dynamically. I am getting a val..

What is the dollar sign in Javascript, if not jQuery I did some javascript / jQuery programming a few years ago, and I just started up again. Back then the dollar sign was used for all the jQuery functionality, and if no jQuery library was imported, the dollar sign was not defined. Today, I started up Firefox, in a completely empty html file with no javascript libraries, and yet the dollar sign ..

Why did git set us on (no branch)? This morning we pull from our repo, and git put us on (no branch). I don't understand this, why did this happen? And how get out of it without losing our changes? "Not currently on any branch" means you have a detached head, i.e. your HEAD pointer is directly referencing a commit instead of symbolically pointing at the name of a branch. You can get into this si..

Why does Python's __import__ require fromlist? In Python, if you want to programmatically import a module, you can do: module = __import__('module_name') If you want to import a submodule, you would think it would be a simple matter of: module = __import__('module_name.submodule') Of course, this doesn't work; you just get module_name again. You have to do: module = __import__('module_name.submo..

Extracting time from POSIXct How would I extract the time from a series of POSIXct objects discarding the date part? For instance, I have: times

The cause of “bad magic number” error when loading a workspace and how to avoid it? I tried to load my R workspace and received this error: Error: bad restore file magic number (file may be corrupted) -- no data loaded In addition: Warning message: file ‘WORKSPACE_Wedding_Weekend_September’ has magic number '#gets' Use of save versions prior to 2 is deprecated I'm not particularly interested in ..

R Conditional evaluation when using the pipe operator %>% When using the pipe operator %>% with packages such as dplyr, ggvis, dycharts, etc, how do I do a step conditionally? For example; step_1 %>% step_2 %>% if(condition) step_3 These approaches don't seem to work: step_1 %>% step_2 if(condition) %>% step_3 step_1 %>% step_2 %>% if(condition) step_3 There is a long way: if(condition) { step_1..

How do I limit panning in Google maps API V3? In V2 there was a way to limit panning/dragging so the map stays within certain bounds. How is that done in V3? Let's say I want the users to only look at Europe. I've already limited the zoom, but if I allow dragging (which I have to in this case, for other reasons) then the user can pan beyond the area I want to show. Please give working example or..