Here is a quick example of how to add extra rows to a data frame in R. I’m using the colMeans() function to calculate a new value I want to add. First loading the data into a data frame with as.data.frame(). Then doing a simple for loop going from one to ten. Lastly adding the
How to calculate mean for multiple columns in R with colMeans
There are multiple ways to calculate the mean for a column in R. So if you have a small amount of column. Or only need the mean of one of the column, you could use the mean() function. We’ll see later how to do it with colMeans(). You can’t do a range on the column.
How to increment for loop by two in R
A simple for loop iterating by one can be done by using the range To increment by two you can use the seq function This will print out every second number, since it is iterating by two here. Source: https://www.rdocumentation.org/packages/base/versions/3.6.2/topics/seq
How to get proportion of variance from prcomp in R
How to get proportion of variance from prcomp in R you might ask? You can see the value if you do a summary of prcomp You’ll get something that look like this: However, to actually get the value you can calculated it from the standard deviation variables. If you do a ? help on prcomp
Plot the PCA Principal Components Analysis in R
Calculating and plot the PCA Principal Components Analysis in R in RStudio example with comments: Now plotting it in RStudio you’ll get your view. So here I have three grouping with legends labels on the right. In this example the column one in the dataset is the group type (0, 1, 2). Autoplot() is just
Unable to find manifest signing certificate in the certificate store
In visual Studio I got unable to find manifest signing certificate in the certificate store. Go to your project Properties and then Signing in the left menu. Uncheck the “Sign the ClickOnce manifests”
XUnit Fact skip not skipping in CI
If you’ve added skip to your Fact in XUnit and it’s still trying to run it, make sure you have added a reason or description for the skip. Simply adding Skip is not enough.
Github refusing to allow an OAuth App to create or update workflow
You might end up with this error when trying to edit and push your Github pipeline from visual studio code or the terminal. You don’t need to use a personal access token with workflow enabled or a github_token. What you do is deleting the credential and let it do the connection configuration itself when connecting.
Ubuntu javac not found
Running javac gives command not found There are multiple option. One way is installing the default-jdk Afterwards you can checkup if it has run correctly
Visual Studio 16.8.3 crash when doing side by side
When dragging to use the side by side in Visual Studio it crashed, this is a known bug in 16.8.3 and 16.8.4. Update Visual Studio to 16.8.5 to fix it. Source: https://developercommunity2.visualstudio.com/t/Unexpected-VS-crash-when-docking-or-spli/1323017