People coming from other coding languages to python often ask how they should pre-allocate or initialize their list. This is especially true for people coming from Matlab where codes as returns a warning that explicitly suggest you to initialize the list. There are several posts on SO explaining (and showing …
How to draw colored rectangles around grouped clusters in dendogram?
I try to add colored rectangle to dendrogram results like as follow: this is my dendrogram codes: However, this is only add colorful line not a rectangle like in the above image. How can I create image like this? Thanks Answer You can loop through the generated path collections and draw a bounding box. Option…
How to plot DENDROGRAM in GUI
I am using a GUI from QtDesigner to plot Dendrogram. My code is below, but I can not plot the Dendrogram, how can I fix it? Image of Dendrogram: Answer You have to import the dendrogram from scipy: And then pass it the axes through the ax argument:
Raspbian detect keyboard input while sleeping
I have a python script in Raspbian that loops indefinitely and sleeps for 15 minutes between the main function executions. Main is threaded but usually takes 3 seconds to run. I don’t want any code to interrupt, when in time, the next call is made. During sleep I would like to detect keypress ‘r&#…
how to get last 10 business days if
I want to create dataframe based on last 10 business days. Also it should check whether the day is public holiday or not. I have a list of public holiday. List of public holiday is: Holiday 2021-01-26 2021-03-11 2021-03-29 2021-04-02 2021-04-14 2021-04-21 2021-05-13 2021-07-21 2021-08-19 2021-09-10 2021-10-15…
python.exe: No module named pyuic5
I want to convert my .ui file to py but pyuic5 is not recognized And when i go to my python directory this error message appears how to fix this error? Answer A more generic option is:
What’s wrong with this storage calculator?
I’m new to python, and this question appeared on a course. This was my answer. The question was this: If a filesystem has a block size of 4096 bytes, this means that a file comprised of only one byte will still use 4096 bytes of storage. A file made up of 4097 bytes will use 4096*2=8192 bytes of storage…
on_guild_join data doesn’t save on my database
I test-ran my code using on_guild_join to fetch data from a server it joined and save it in a specific db file, but when I checked that, it was empty, no data was saved in it. I checked that on_guild_join part was working, and gave all intents. Here’s the code: class for command ‘execute’, &…
Plotting graph from data frame
Plotting the graph for both South Asia and Eastern Asia using the above function is showing the same countries and same graphs .What mistake am I doing while writing the above code, I can’t figure that out? enter image description here Answer The problem is with your function. Remove the for loop and it…
Removing one source value when there are multiple sources
I have the following dataset: I wanna reorganize the dataset in the following way: In word, in each year, for each category if we have value from multiple source (A,B), we will drop the source value of B. But if there is only source value of B, then we will keep that. I have tried to fix it using df.groupby()…