testdat | A package to run unit tests on tabular data
kandi X-RAY | testdat Summary
kandi X-RAY | testdat Summary
This package provides a test suite to ensure that tabular data are correctly formatted. It will ensure that columns do not have unicode characters, numeric columns don't have characters, and that columns of data can be tested to ensure that there are no outliers. This suite would be extremely useful alongside unit tests for code to ensure that data read into R do not have errors in them.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of testdat
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Community Discussions
Trending Discussions on testdat
QUESTION
Suppose I have a .csv file which I want to read.csv into R. Sometimes I want to use the "nrow" option to restrict the rows read into R. However other times I want all rows to be read in.
How do I add in a variable to dynamically code for the nrow option in read.csv?
For example:
...ANSWER
Answered 2021-Jun-13 at 00:54We can use Inf
as a value
QUESTION
Here is an example
...ANSWER
Answered 2021-May-27 at 04:07You can indicate that an ISO date is in the UTC timezone by placing Z
at the end.
Seems to work:
QUESTION
I'm trying to wrap my head around Jmeter functions and how to actually use them in an HTTP JSON request. All examples I've found on function use them as titles in HTTP requests, which is not helpful.
All I want to do is this, and then use that variable in my POST request. But that doesn't work and I have no clue why not.
...ANSWER
Answered 2021-May-24 at 06:54I don't think
20211
is the valid year, do you mean2021
?If you put the function inside User Defined Variables - it will be evaluated only once and won't be random, you should rather inline it into the request body as User Defined Variables are evaluated only once, when the test starts
If you're trying to post JSON - I think you should surround the function with quotation marks, otherwise the JSON will be invalid. Suggested change:
QUESTION
Combining multiple select statements as a columns, is not giving the desired output. What I'm missing here? Group by clause is not working as expected. Do I need to use GroupBy for outer Select as well.?
SQL Query:
...ANSWER
Answered 2021-May-21 at 11:31Do you just want conditional aggregation:
QUESTION
I wrote a date reformatter but it appears Swift's date formatter itself is ignoring the months. The documentation says this shouldn't be happening. How do I make it not ignore months?
...ANSWER
Answered 2021-May-12 at 13:34Your format string is incorrect. It should be:
QUESTION
I have the following dataframe:
...ANSWER
Answered 2021-Apr-27 at 18:35- core is
unstack()
month to be columns - detail then to re-structure month-by month marks columns to required structure
- generally consider bad practice to have duplicate column names, hence have suffixed them
QUESTION
Loading / storing the 3 floats (ID=1, Loc1=3, Loc2=100) into the public class MInput works fine. However, I like to access / use the same dataset in the Forms2 class, which unfortunately gives me zero values only. What is wrong with the call in Forms2 for textBox1.text and textBox2.text ? Thanks for your ideas.
...ANSWER
Answered 2021-Apr-18 at 20:00If you want Form2 to access an object you create elsewhere you have to pass the object to form2. Some instance of class X doesn't just magically get access to an instance of Y just because both different places do a new Y
and call them the same name, for the same reason that you buying an iPhone and your brother buying an iPhone of the same model and specification, doesn't mean you can read his messages
QUESTION
Hey I am receiving dates from a database which saves these dates as UTC. When I print one of the dates with console.log it looks like this 2021-04-07T07:00:00.000Z
.
Now I want to convert it into Europe/Berlin
time. But not as a String, I want it as Javascript Date.
What i tried to do
I installed date-fns
and date-fns-tz
and I tried to use multiple functions from these packages but nothing seems to work properly or returns the correct date but again as with 'Z' suffix.
Example where testDate is the Date mentioned before
...ANSWER
Answered 2021-Apr-07 at 17:41Now I want to convert it into Europe/Berlin time. But not as a String, I want it as Javascript Date.
That is not possible. The JavaScript Date
object does not contain any time zone information whatsoever. The only thing it contains is a Unix timestamp with milliseconds precision. In other words, the Date
object encapsulates the number of milliseconds since 1970-01-01 00:00:00.000 UTC (not counting leap seconds). You can see this value directly with .getTime()
, .valueOf()
, or by any mechanism that converts the Date
object to a Number
.
When one observes a Date
object and sees a time zone or a value in a particular time zone, that behavior is occurring at runtime in the function itself. For example, the toString
function of the Date
object uses the local time zone of the computer when it converts the internal UTC-based timestamp to the computer's local time before returning a string that has formatted that result.
Most functions on the Date
object work in either UTC or in the computer's local time zone (as described). The only ones that work with other time zones are the toLocaleString
, toLocaleDateString
, and toLocaleTimeString
functions, which will accept an IANA time zone identifier in the timeZone
option. Like the toString
function, they only use this time zone when generating a string. They do not retain it.
In short, the Date
object does not contain a time zone, so what you ask for is not possible.
A couple of other things:
Don't call
console.log
directly on aDate
object. That behavior is undefined. Some implementations return the value oftoString
while others return the value oftoISOString
.Don't ever try to add/subtract an offset on a date/time unless you really know what you are doing. In most cases, you aren't adjusting for time zone but are actually choosing a different point in time.
Yes,
Z
at the end of an ISO 8601 timestamp means that the date and time presented are in terms of UTC.
QUESTION
Information about my Project:
- Gradle Version 6.8.3
- Lombok Version 1.18.18
- IDE Version 2020.3
My JAVA_HOME Path in the Windows environment variables is set to the newest Java JDK (15.0.2). The Project Language in the Project Structure Path is also set to Java 15.
I am currently using IntelliJ version 2020.3 and since a few days I have the following Problem.
When I want to import specific Classes or Interfaces from the java package e.g java.time.LocalDate
. IntelliJ marks this import as an unused import Unused Import java.time.LocalDate
After I replace the LocalDate
with an Wildcard *
the Message is gone java.time.*
In the next Step I did the same with another Class I want to import. This time I used the java.util.Set
import. The same message occurred after I wrote Set foo;
. Cannot resolve Symbol 'Set'
When I replaced the java.util.Set
with java.util.*
the Message disappeared. Wildcard import for java.util
I got this Problem everytime I want to import a specific Class from the Java JDK libraries. When I import libraries from the Gradle Dependencies everythings works fine. So this Problem only occurs on Java libraries.
I Already tried the following Steps to solve the Problem:
- import Project with IntelliJ VCS
- Checked if there are any incorrect settings in Project structure
- File -> Invalidate Caches/Restart
- Project Structure -> Project SDK and added the same Java JDK again
- Ctrl + Shift + A and Restored default Settings
Code Sample:
...ANSWER
Answered 2021-Apr-06 at 10:32After Installing Eclipse and getting the same Error Reports like in IntelliJ. I reinstalled jdk 15.0.2. I reopened the project again in IntelliJ and everything worked fine. IntelliJ recommend imports when I used java.util
classes. So I will close this question now. Thank you guys very much for trying to help me with this problem. In the end it was something much easier which fixed the problem.
QUESTION
I have 2 tables, first is the testappointment table and 2nd is the actualTests table. i want to join the 2 df in such a way that the resulting table should have column "NoShows". this column depicts that the person booked a appointment for that date, but actually did not show up for the test at the test date. Example-
...ANSWER
Answered 2021-Apr-03 at 18:09You can do a left join and create a new column based on whether ActualtestDate
is null:
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