kiwi | Efficient C++ implementation of the Cassowary constraint | Learning library
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Efficient C++ implementation of the Cassowary constraint solving algorithm
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QUESTION
I have a data frame combining single and multi-values obs.
...ANSWER
Answered 2022-Mar-25 at 14:49We may use combn
on each row and get the frequency
QUESTION
I will need to do color conditional formatting for 1 particular column, format it to percentage, and export the file as .xlsx. Note that I have 5 data frames that I will run this rule code with, and compile them into 1 workbook each in different sheets. I am stuck on the part where I can't seem to set the conditional rule if I formatted the percentage in it. And vice versa, if I conditional format it first, I'm not sure how I can format percentage for that column. Please refer to my code below.
...ANSWER
Answered 2022-Mar-17 at 09:01You don't need to use label_percent
from scales
package.
You can apply the percentage format along with the color rules to the workbook by using style
and then addStyle
functions. Another thing, I found in the documented examples of conditionalFormatting
that you don't need to specify the column name (such as C
) in the rule
argument if your rule apply to only one column with no relation to values in another column.
Here is the code that I used:
QUESTION
I have a dataframe column that has a string, which may include several spaces. I want to use separate
from tidyr
(or something similar) on the space after the first time a keyword (i.e., fruit_key
in the sample data) appears, so that I separate the one column into two columns.
Sample Data
...ANSWER
Answered 2022-Mar-16 at 16:07If we need to use separate
with sep
, then create a regex lookaround - "(?<=) "
i.e. split at the space that succeeds the fruit_key word and as is not vectorized, collapse
into a single string with |
(str_c
)
QUESTION
I am trying to define a type where the favoriteFruit property's value must be an item in options array. Where the options array is dynamic/unknown (making it impossible to use union types "|").
...ANSWER
Answered 2022-Feb-05 at 15:23I found this : How to convert array of strings to typescript types? .
QUESTION
I have several data frames that I want to join together. Before I do that, I'm trying to create a function that will let me deal with duplicates in column 1 by using group by and summing up the values in column 2. The issue is that I want to keep the same name for column 2, and I can't figure out how to do that.
For example:
...ANSWER
Answered 2022-Jan-20 at 22:54If you take out the x assignation, then you can get a default value generated for the column name as below:
QUESTION
I have the following json of format:
...ANSWER
Answered 2022-Jan-19 at 16:29Using the following JSON as an example
QUESTION
Take a scenario where my current collection named fruits looks like:
...ANSWER
Answered 2021-Dec-22 at 13:24You should define a schema corresponding to the collection, let's call it fruit.model.js
:
QUESTION
I have a data frame called fruits where each row has up to 3 fruits with their corresponding color. Color1 goes with Fruit1, Color2 with Fruit2, and Color3 with Fruit3.
...ANSWER
Answered 2021-Dec-21 at 21:20You can work with the sets of columns independently, create logical matrices, then combine them logically with &
.
Up front:
- if you have
NA
values in your data, this will need some mods to work properly; - this presumes that all columns are in the same order; for instance, if your columns were ordered "Color1, Color2, Color3" and "Fruit3, Fruit2, Fruit1", then this will not pair things correctly.
Assuming dplyr
:
QUESTION
I'm studying for an exam and got stuck on one of the prep questions:
Question:
...The following Prolog-program is a meta-program. Explain why this program is a meta-program and give the output to the three questions to the program:
ANSWER
Answered 2021-Dec-08 at 13:18why is this a meta-program?
See: SWI-Prolog Meta-Call Predicates
Meta-call predicates are used to call terms constructed at run time.
In this case passing in the predicate to call, Fact
, then running it as a goal.
QUESTION
I'm trying to help a JSON structure format from an existing project, and the goal is to rename some subkeys not the value. The JSON format like this
...ANSWER
Answered 2021-Nov-22 at 06:05Given you're working with JSON objects and thus PHP associative arrays (as opposed to numerically indexed), all you really need to do is set the new property and unset the old one
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