rlist | A Toolbox for Non-Tabular Data Manipulation
kandi X-RAY | rlist Summary
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of rlist
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QUESTION
Here is a code (also see comments in code):
...ANSWER
Answered 2021-May-04 at 17:37We can just do assignment
QUESTION
I am trying to loop through a list containing numbers only. For each loop, I convert the column from char to numeric, and then I attempt to plot it. A basic example of my code is:
...ANSWER
Answered 2021-Apr-15 at 03:16It really take a lot of time to reproduce your case as you have so many packages that I didn't use :)
Explaination of the issue: ggplot
does not render any graph at the time you call the geom and passing data
and mapping
aes. ggplot
just store the name reference to the data variable. Only when render it actually get the value and plot. In your case, you are passing reference dd[[col]]
and as col
change value through for loop while ggplot
always reference to col
so it ended render two bar of the same data of the last column value is Column2
. You can verify this by changing order of the column and put Column1
at last then you will see two bar of Column1
instead.
Solution: create unique reference for each loop
Initial setup with data in dput formatQUESTION
I am trying to copy data from 1 spreadsheet to another, I have successfully implemented something i found online that works with a specific range
...ANSWER
Answered 2021-Apr-21 at 17:48Try this:
QUESTION
so I am having trouble with Pandas for a series findall(). currently I am trying to look at a report and retrieving all the electric components. Currently the report is either a line or a paragraph and mention components in a standardize way. I am using this code
...ANSWER
Answered 2021-Apr-16 at 14:04See the Series.str.findall reference:
Equivalent to applying re.findall() to all the elements in the Series/Index.
The re.findall
references says that "if one or more groups are present in the pattern, return a list of groups; this will be a list of tuples if the pattern has more than one group."
So, all you need to do is actually remove all capturing parentheses in this case, as all you need is to get the whole match:
QUESTION
We are using Redission client for java to get the data from redis but object gets deleted from collection due to TTL.
Example
We are trying the below approach to get the data from Redis with TTL.
final RList rList = client.getList(getEnvCacheKey(cacheKey));
rList.expire(7L, TimeUnit.SECONDS);
rlist.add("Value1");
rlist.add("Value2");
assertThat(rList).containsOnly("Value1", "Value2");
// This condition is true until 7 seconds
Now after 7 seconds
assert rlist.size() == 2
condition becomes false since object references are deleted due to TTL.
Due this we landed up in a production issue. Is there any way we can retain the objects even after TTL? Any sort of help will be appreciated.
...ANSWER
Answered 2021-Apr-13 at 13:19The TTL(Time-To-Live) itself sets the expiration of a particular key after which the key can no longer be retrieved. If you want to keep the key in the memory you could simply skip setting rList.expire(7L, TimeUnit.SECONDS);
altogether (infinite expiration).
In case you want to extend expiration, you can do so by repeating the expire
command. It is also possible to remove the TTL altogether this way, although I could not tell you how to do it specifically with the Redisson.
As for the expired keys, Redis clears them 10 times a second (according to this documentation), so I don't think that you can (consistently) recover the values within the expired keys.
My general advice would be to take a step back and look at your system design. In case you are missing the expired keys, maybe this part of the product should get an extended TTL/no TTL/periodical TTL refresh
QUESTION
I’ve been given a nested list where each sublist contains information about values of one specific data frame. The list has the following structure:
...ANSWER
Answered 2021-Mar-11 at 16:37Have you tried something like that?
QUESTION
Is it possible to locate NAs (missing values) and return their location with both list and column?
Please consider this data:
...ANSWER
Answered 2021-Feb-11 at 14:23A pretty straightforward approach would be using rapply
with is.na()
. Something like this would be close to your desired result:
QUESTION
I have a loop that produces a list of ggplots for any given number of analytes (in this example, 3). An ANOVA is performed and p-value generated and mapped for each ggplot.
However, I also want to annotate these plots with Tukey HSD p-value brackets. If possible, I only want to visualize brackets that are below an adjusted p < 0.05.
I have written two scripts that perform separately these actions; the output for my loop is a list of lists (ggplot elements), while the output from my Tukey HSD script is a dataframe.
The brackets that I am referring to would look something like in this example ggplot:
The following is my code. First, the data:
...ANSWER
Answered 2021-Jan-30 at 00:32You could use ggsignif
for custom annotations. Example uses p < 0.2 as cutoff to show multiple error bars:
QUESTION
I have a list of countries with lists inside each one of them.
Just to give you an example of a list
object for one country with lists for two countries (df_DOTS
):
ANSWER
Answered 2021-Jan-24 at 21:03Just add tidy = TRUE
to the CompactDataMethod
call:
QUESTION
My java code is this:
...ANSWER
Answered 2021-Jan-03 at 09:38As each list element is a Map
potentially containing more than one instance of Object
, you first need to re-define your sort criteria.
It would work if you say that you want to sort the list by the greatest Object
in the Map
.
But as With these informations, you can implement a java.lang.Object
does not define java.lang.Comparable, there is no natural order for instances of
Object
. So you need to define a sorting criteria for Object
, too. As there are not that many attributes, only the hash code or the result of Object.toString()
would work.
Comparator
that can be used as argument to List.sort()
.
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Install rlist
Suppose we have a list of developers, each of whom has a name, age, a few interests, a list of programming languages they use and the number of years they have been using them. This type of data is non-relational since it does not well fit the shape of a data frame, yet it can be easily stored in JSON or YAML format. In R, list objects are flexible enough to represent a wide range of non-relational datasets like this. This package provides a wide range of functions to query and manipulate this type of data. The following examples use str() to show the structure of the output.
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