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I have a PySpark DataFrame with an array of structs, containing two columns (colorcode and name). I want to add a new column to the struct, newcol.

This question answered "how to add a column to a nested struct", but I'm failing to transfer it to my case, where the struct is further nested inside an array. I can't seem to reference/recreate the array-struct schema.

My schema:

I have complex JSON data and I am creating a table from this data. I can get all values clearly.

But I want to remove or hide a row if all data is zero. In my case, if my counter is 5 then I should remove 'title' and 'values'

I created a function for that but I cannot remove the line. How can I do it?

I have a basic unit-test case written for two methods.

At first there were 4 buttons I only wanted 3 so I removed the 4th one and that's why I want to make the remaining 3 look horizontally centered, it looks weird because of the 4th button's blank space. I tried a few things but they didn't work out.

According to the documentation of useEffect, it starts after the HTML elements are rendered so why I am getting the value of useRef hook as undefined inside the useEffect function. How can I set the value of Input field using useEffect in this code.

List Adapter diffutil not updating the list item in recyclerview.

It works when I add or remove a item from the list. But not updating the any particular value like isSelected : Boolean = false in object class

How to update the recyclerview view when one of the object class in list is changed like value Boolean changes in one object class

Thankyou

Adapter Class Below

I'm rendering a 212 row x 64 column DF of ints (final_df) ranging from 0 to 6 as an (annotation-less) plotly annotated heatmap. I’m doin this in my browser (microsoft edge) using a file from fig.write_html(). The final heatmap renders very slowly in my browser, to the extent I'm getting 'page not responding' warnings, and any zooming in/out of the graph is also very slow. This is surprising given the df is not that big.

Can anyone suggest why this is and how to speed it up?

Thanks, Tim

I'm working on an ASP.NET Core project and need to get the value of the checked input[type="radio"] when clicking on the inputs.

This is my HTMl markup:

I am plotting an annotated heatmap with a colour bar using the code below, inspired in part by this very helpful tutorial (its part of a larger bit of code which I'll put at the end).

final_df is a dataframe whose columns are protein IDs and index is features of interest (only one in this example - M100867). A non-0 int in a heatmap cell means the protein associated with the cell is part of the feature associated with the row/index, and each non-0 int (between 1 and 6) maps to a protein grouping that I'd like to use to color my cells.