I want to unwind a group of fields but seems like unwind doesn’t work on _id field. I want to unwind the output because I want to write it in a new collection. Here is an example showing what I want to do: Some data: db.test.insertOne({A: "A1", B: "B1", num:1}) db.test.insertOne({A: "A2", B: "B2", num:2})… Read More Unwind the _id field of a mogodb aggregation stage
I want to conditionally add sort to a shell pipeline, but I’m getting a syntax error when I try: want_sorting=0 generate_data() { for ((i=0; i<10; i++)); do echo "$RANDOM"; done; } consume_data() { while IFS= read -r line; do echo "got data: $line" done } generate_data | if [ "$want_sorting" = 1 ]; then sort… Read More Conditionally add a component to a shell pipeline
I am trying to Improve a Regression Model using GridSearchCV with Pipeline, but I ran into an error. if i am not worn then, it points to Invalid Paramaters, I’ve cross checked the parameters properly, but still i can’t debug the code. ## importing libraries import pandas as pd from sklearn.compose import ColumnTransformer from sklearn.pipeline… Read More how can i Improve this model using GridSearchCV with Pipeline
I’m making some modules to make RESTAPI calls easier for our software (since all resources use different logic to how I can find them and how they should be called but that’s a separate story). I’m making Get-, Set-, New-, and Remove- for each resource and just found that you can’t pipe more than one… Read More Powershell piping multiple PSCustomObjects drops all but first object
Let’s take a look at the following two pieces of code: mtcars %>% ggplot(aes(x = cyl, y = mpg))+ geom_line() This works and creates the following plot: Now let’s look at this: mtcars %>% group_by(cyl) %>% summarise(mpg = mean(mpg)) This also works and creates the following output: # A tibble: 3 x 2 cyl mpg… Read More How to use the %T>% pipe after ggplot?
I have a pandas data frame which has a single column named Category. I want to split this Category column into 4 separate columns named A, B, C, D based on the pipeline symbol "||" Sample input: df[‘Category’] = Operations||Modification||Bank||Bank Process Sample output: df[‘A’] = Operations df[‘B’] = Modification df[‘C’] = Bank df[‘D’] = Bank… Read More Split pandas dataframe column based on the pipeline symbol
If I have a CPU/system with the following characteristics… 16 bit architecture (16 bit registers and bus) 8 total registers A set of 64 assembly instructions And assuming my assembly instructions follow the format… OPCode (6 bits) + Register (3 bits) + Register (3 bits) + Unused (4 bits) ** Example Instructions (below) ** Assembly:… Read More Understanding address assignment to registers via assembly instructions
Imagine this piece of code: mtcars %>% group_split(cyl) %>% map(select, mpg, disp, hp) %>% `names<-`(c(4, 6, 8)) %>% map(cor) The names of the list elements are set according to the value of the cyl variable, based on which the data was split into three groups. Now imagine passing all of this to corrplot: mtcars %>%… Read More R – pull title for corrplot graph within map in a pipeline
I’m reading getting the names of all the images inside a subfolder of my assets folder. //Returns name of all the images inside folder_previews private static List<String> getPreviews(Context context) throws IOException { AssetManager assetManager = context.getAssets(); String[] files = assetManager.list("folder_previews"); return Arrays.asList(files); } I then want to concat a String before each one. try {… Read More Arrays.asList() how to append String value to each item
Hey 🙂 This is my first post and my first approach at streams! I am trying to learn it by myself, but since its a new style of programming Im having a tough time 😀 So here’s my problem: In the following Method I have a Map of <Long, Ingredient> as parameter. (Ingredient has the… Read More Hashmap – cannot infer arguments