conditions | Standardized Conditions for R | Chat library
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kandi X-RAY | conditions Summary
Due to recent changes in R (the introduction of typed conditions), this package is not actively maintained anymore.
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QUESTION
I am a beginner in Data Science, so please sorry if my mistake is dumb.
Here, I have a loop which views my data frame and makes changes using .loc The problem is that the changes are not saved at the end. I checked every step, everything is processing right. I even checked the modified cell right after working on it (look below) and its gives the value I put into it. However, when the program finishes the my excel data frame is not changed at all.
Help please. Thank you in advance!
...ANSWER
Answered 2021-Jun-13 at 21:56when the program finishes my excel data frame is not changed at all.
That's because you never wrote anything to the Excel file. With exc = pd.read_excel('...')
you create a Python object exc
(more specifically, a pandas DataFrame), and all the subsequent modifications happen to this object. To change the source file accordingly, you can use pandas' DataFrame.to_excel()
method, by adding this line in the end:
QUESTION
I'm trying to create a new variable based on some conditions. I have the following data:
...ANSWER
Answered 2021-Jun-15 at 16:13We can use a group by operation in dplyr
i.e. grouped by 'ID', extract the 'code' where the 'type' value is "large" (assuming there are no duplicate values for 'type' within each 'ID'
QUESTION
I am trying to use two conditions where one is a range of numbers like the following:
...ANSWER
Answered 2021-Jun-15 at 18:30You can use between
and also note the parantheses:
QUESTION
Update: Added a simpler demonstration jsfiddle, https://jsfiddle.net/47sfj3Lv/3/.
reproducing the problem in much less code I'm trying to move away from jQuery.
Some of my code, for populating some tables, has code like this
...ANSWER
Answered 2021-Jun-15 at 18:27This was difficult for me to understand, so I wanted to share if anyone else has the same issue.
It seems that an async method will break a method chain, there's no way around that. And since fetch is asynchronous, await must be used, and in order for await to be used, the calling method must be declared async. Thus the method chain will be broken.
The way the method chain is called must be changed.
In my OP, I linked https://jsfiddle.net/47sfj3Lv/3/ as a much simpler version of the same problem. StackOverflow's 'fiddle' effectively blocks 'fetch' for security reasons, so I need to use JSFiddle for demonstration.
Here's a working version of the same code using then
and how/why it works, and a slightly shorter version, because await can be specified with the the fetch, obviously.
QUESTION
I have this situation on google sheets
I wanted to make a monthly report with sumifs
with 2 conditions like the image above. But all I got was errors.
Code I am using
=sumifs(D2:D13;D1:G1;C16;B2:B13;or(B2:B13="apple","cherry","watermelon"))
ANSWER
Answered 2021-Jun-12 at 06:30You may use combination of multiple sumifs
to solve your calculation since you won't know which will be the first row item that has market value
and sum of amount of other fruits will return 0, therefore the calculation will still give correct total.
QUESTION
I am trying to compute the RMSE of a panda dataframe based on multiple conditions: (plant_name, year, month). My datafram (df3m) looks like this:
...ANSWER
Answered 2021-Jun-15 at 17:13You can use .GroupBy.apply()
and put the call to mean_squared_error
inside it, as follows:
QUESTION
I've started to create UI tests for my PyQt5 widgets using QtTest but have run into the following difficulties:
In order to speed up things, some of my widgets only perform operations when visible. As it seems that QtTest runs with invisible widgets, the corresponding tests fail.
For the same reason, I cannot test program logic that makes a subwidget visible under certain conditions.
Is there a way to make widgets visible during test? Is this good practice (e.g. w.r.t. CI test on GitHub) and is QtTest the way to go?
I have tried to use pytest with pytest-qt without success as I couldn't find a proper introduction or tutorial and I do know "Test PyQt GUIs with QTest and unittest".
Below you find a MWE consisting of a widget mwe_qt_widget.MyWidget
with a combobox, a pushbutton and a label that gets updated by the other two subwidgets:
ANSWER
Answered 2021-Jun-15 at 17:01The problem is simple: QWidgets are hidden by default so isVisible() will return false, the solution is to invoke the show() method in init() to make it visible:
QUESTION
I have student_data data frame.
...ANSWER
Answered 2021-Jun-15 at 15:37#your sample dataframe:
student_data = pd.DataFrame({'student_id': ['fWz', 'a1m', 'a1m','4Gn','scw', 'scw', 'nF4c', 'a1m', 'scw', '4Gn', 'fWz' ],
'score': [' ', 15, 14, 11, 20, ' ', 9, 19, 17, 3, ' '] })
QUESTION
I would like to make a joins query but only if a condition is met.
In previous version of rails when find was used, I would be able to use:
...ANSWER
Answered 2021-Jun-15 at 14:09you can create a scope
that will check the condition
before joins
QUESTION
I have a ecommerce site where the URL changes based on the country language. Only 2 letters will be added based on the country ex NL for netherland,NO for Norway.
once the browser is launched i need to check which url is launched and need to proceed based on the launched url.
i am expecting if condition logic
IF url = nl Then " " Else if url = NO Then " " else " "
As i am new to coding struggling in this logic and conditions we are using serenity with junit 5 framework
...ANSWER
Answered 2021-Jun-15 at 12:18You can get the URL with this:
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