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Mastering Development

Problems with shape files

I want to make a map with the coronavirus infected people by state in US . So the idea is to visualize a map with all states of US and see a range of infected people( i.e 500-2000 , etc) in all the map. This should be represented by different shades of one color. The […]

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Development

Count the occurrences of a symbol and return a column with the count, but only in certain cases, in R

I have data that looks like this: structure(list(Age = c(“25”, “22”, “54”, “62”, “86”, “25”, “44”, “54”, “48”, “50”), full_name = c(“DOE, MARTIN”, “SMITH, RYAN E”, “JOHN, KENNETH”, “DOE, LAWRENCE A”, “FU, EDGAR”, “ALEXANDER, AL”, “BARR, DONALD”, “STEVENS, RICHARD”, “LUIGI, MARIO”, “SMITH, GLEN” ), ems_interventions = c(“Oxygen – Prehospital Cervical Collar – Prehospital Long Spine […]

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Development

java.text.ParseException: Unparseable date: “Augu 16, 1979” [duplicate]

This question already has an answer here: Parsing a date’s ordinal indicator ( st, nd, rd, th ) in a date-time string 4 answers Parsing dates of the format “January 10th, 2010” in Java? (with ordinal indicators, st|nd|rd|th) 4 answers How to convert the date value “26th May 2017” to “26/05/2017”? [duplicate] 4 answers if […]

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Development

Getting Duplicate Labeled Points on Scatterplot in R

I am trying to use kmeans to show what states have similar statistics with one another from the Lahman database, my code is as follows: battingInfo <- Batting %>% filter(yearID >= 1999) total <- merge(battingInfo,People,by=”playerID”) totalN <- total[,-c(24,25,28:47)] filterByState <- totalN %>% group_by(birthState) %>% summarise(players = length(playerID)) newMerge <- merge(totalN, filterByState, by=”birthState”) newTest <- newMerge […]

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Development Swift

swift link how all searchbar results to same viewcontroller

I have a SearchViewController. The image for the SearchViewController is:- and the code for the SearchViewController is:- import UIKit class SearchViewController: UIViewController, UITableViewDataSource, UISearchBarDelegate { @IBOutlet weak var tableView: UITableView! @IBOutlet weak var searchBar: UISearchBar! let data = [“New York, NY”, “Los Angeles, CA”, “Chicago, IL”, “Houston, TX”, “Philadelphia, PA”, “Phoenix, AZ”, “San Diego, CA”, […]

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Development

How to submit data without reloading page?

I have been trying to solve this problem for a long long time. I’m new to web developing. What I’m trying to do is that when I’m click to submit button for submitting the values, the page should remains to it’s position, but instead it’s automatically goes to top, which I don’t want that. <!DOCTYPE […]

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Development MATLAB

MATLAB to Scilab conversion: mfile2sci error “File contains no instruction”

I am very new to Scilab, but so far have not been able to find an answer (either here or via google) to my question. I’m sure it’s a simple solution, but I’m at a loss. I have a lot of MATLAB scripts I wrote in grad school, but now that I’m out of school, […]

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Development

Tuple Unpacking with List Comprehension fails but works with for-loop

Summary I have used a semi-complex regex to retrieve data from a website. The issue I have is that I have to do some post-processing of the matched dataset. I have gotten the data processes to probably 95+% of where I want it, however, I am getting this simple error message that I cannot reason […]

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Development

Updateview setting user to null

When using updateview for some reason my user value is being set to null. I have a create view where the user is automatically set to the current user and when I view the database everything works as expected. The issue is that when I use updateview the value is being reset to null. All […]