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QUESTION
I want to do a similar thing as in this thread: Subset multiple columns in R - more elegant code?
I have data that looks like this:
...ANSWER
Answered 2020-Oct-08 at 09:53You can use rowSums
:
QUESTION
I have a bunch of separate code chunks to run normality tests in R, and I would like to be able to combine them so that I can test specific variables without copying the code each time. So far, all the individual code chunks are working (using the iris dataset as an example):
...ANSWER
Answered 2020-May-27 at 10:53The goal here is to try to replace whenever you have Sepal.Length
for a generic variable. After that, you can make a function and call it for each variable. Then, it's simple to generalize a loop that will return all the results at once.
QUESTION
I have a dataframe that consists of ~6000 columns. Each column contains a country name that represents a node in a graph. Countries within one row are connected via an edge.
This looks like this:
...ANSWER
Answered 2020-May-20 at 15:05It won't ignore the NA but it will replace any combined NA with NA itself
QUESTION
I'm trying to pull a text string (an article title) from a piece of HTML. In this case, it's "Journalist Allegedly Spied on Zoom Meetings of Rivals in Hilariously Dumb Ways."
The problem is, the title doesn't have any identifiers I can see. It's in a few places in the HTML, but the divs it's in don't have stable names.
I tried:
...ANSWER
Answered 2020-Apr-29 at 18:34You can get the text e.g. by selecting a href starting with l.facebook that contains an element with the class name accessible_elem
using :has()
as this element contains the text.
QUESTION
This question has two parts, one more general and the other a specific case:
Is there a theme or template in R for producing plots that have similar appearance to the charts published in "The Economist" magazine? Examples in other contexts include: Create "The Economist" style graphs from python for python and
set scheme economist
for Stata.Specifically, what would be the syntax (e.g., in
ggplot2
) to produce a groups bar plot that would look like the example below, colored shaped markers with bold lines spanning the range between them (left panel), or rectangular confidence intervals (right panel)?
ANSWER
Answered 2020-Apr-12 at 11:29QUESTION
I would like to calculate the time since peak abundance for each of my sites annually, i.e where sites match and years match calculate the time since peak abundance for that specific site in that specific year. Below is a subset of my data, but i have manually entered the column ts_peak_abun so that it represents what I actually want:
...ANSWER
Answered 2019-Nov-28 at 00:15Here is one approach - not sure this is what you are looking for.
QUESTION
I need to display numbers using abbreviations like so
...ANSWER
Answered 2019-Aug-20 at 15:33Using dplyr::case_when
:
QUESTION
I simulate ecological models (as ODE systems) using the simecol package framework which makes very easy the use and the sharing of ecological models through the object class SimObj (See here).
I want to implement a steady-state which stops the simulation once the derivatives become very low.
According to this vignette and this example, you can implement it easily.
You have just to supply a custom solver which check the values of the derivatives.
The problem is that the custom solver does not look to be able reach the
equations
slot of the SimObj.
I woulk like to keep this nice functionality of the equation slots to switch easily between different types of functional response.
Here is the reproducible example:
1. Define the model ...ANSWER
Answered 2019-Mar-26 at 16:55After looking at your example, I saw that your own solver is somewhat "wired", i.e. unnecessarily complicated. The solver is called by the sim function and gets what it needs, so there is no need to call upca_ode within. In addition, you call the external version of that function, not the object, so it has of course no access to "equations".
The (hopefully) good news is that package rootSolve contains already steady state solvers, that you can use.
See example below. The example below shows also, that it is quite easy to define an own solver. Please use the correct order of arguments.
Hope it helps!
Thomas
QUESTION
I was trying to deal with this error (which I never had before I update something in Android Studio):
Annotation processors must be explicitly declared now. The following dependencies on the compile classpath are found to contain annotation processor. Please add them to the annotationProcessor configuration. - auto-value-1.4.jar (com.google.auto.value:auto-value:1.4) Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true to continue with previous behavior. Note that this option is deprecated and will be removed in the future. See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.
So I added an annotation processor: annotationProcessor 'com.google.auto.value:auto-value:1.4'
.
And now, a new error is shown:
QuestionMore than one file was found with OS independent path 'META-INF/DEPENDENCIES'
I read that I should change packaging options (More than one file was found with OS independent path 'META-INF/LICENSE' + Error : More than one file was found with OS independent path 'META-INF/LICENSE' + etc.).
But, instead, is there a way to solve the first problem without triggering the second with only a few changes on my App build.gradle? It would be better.
build.gradle (app level) ...ANSWER
Answered 2018-Nov-17 at 18:11you can either exclude the file altogether or limit it to one occurrence:
QUESTION
I have integrated an R model into a stored procedure using the R Tools for Visual Studio guidance. The syntax is as follows:
...ANSWER
Answered 2018-Feb-08 at 08:27Your code is very hard to read, but to me, it looks like you are not declaring the parameters you want to get out. Below is an example of how you can do it:
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