[Solved] How to sum an array value at specific index ranges [closed]

var words = [“Player “, “1”, “Player “, “2”, “Player “, “3”, “Position”, “In/Our”, “Position”, “In/Our”, “Position”, “In/Our”, “2”, “1”, “11”, “0”, “10”, “0”, “6”, “0”, “10”, “1”, “5”, “1”, “8”, “1”, “11”, “1”, “11”, “0”, “3”]; var index=0; var results = words.filter(word => {index= words.indexOf(word,index)+1;return ((index-1) % 6) == 0;}); console.log(results); Then you can … Read more

[Solved] Default constructor issue when creating an array Java

The error message tells you exactly what’s wrong. There is no declared variable by the name of array. public class ArrayObjects<E> implements SomeImp<E> { int maxCapacity, actualSize; E[] array; // <- The missing declaration @SuppressWarnings(“unchecked”) // <- Suppress the “unchecked cast” warning public ArrayObjects() { maxCapacity = 10; array = (E[]) new Object[maxCapacity]; } } … Read more

[Solved] How to store array of values in NSUserDefaults in swift

let array = [1, 2, 9, 3, 22] UserDefaults.standard.set(array, forKey: “studentIDs”) //get id’s array from user defaults let studentIdsArray = UserDefaults.standard.array(forKey: “studentIDs”) There are plenty of questions/solutions, here is one: how to save and read array of array in NSUserdefaults in swift? But as another user said, please take a look at the official documentation: … Read more

[Solved] C# Array Different indexes

Thanks everey one finaly i fixed it by your guid thanks all myarr = new mytable[50]; number_of_records = 0; number_of_records = fulllines.Length; for (int line = 1; line < fulllines.Length; line++) { int c = 0; for (int i = 0; i < record_lenth; i++) { string data = “”; string currentline = fulllines[line]; string … Read more

[Solved] Download files with specific extension from a website [closed]

library(stringr) # Get the context of the page thepage = readLines(‘https://data.giss.nasa.gov/impacts/agmipcf/agmerra/’) # Find the lines that contain the names for netcdf files nc4.lines <- grep(‘*.nc4’, thepage) # Subset the original dataset leaving only those lines thepage <- thepage[nc4.lines] #extract the file names str.loc <- str_locate(thepage,’A.*nc4?”‘) #substring file.list <- substring(thepage,str.loc[,1], str.loc[,2]-1) # download all files for … Read more

[Solved] How to iterate a vectorized if/else statement over additional columns?

Option 1 You can nest numpy.where statements: org[‘LT’] = np.where(org[‘ID’].isin(ltlist_set), 1, np.where(org[‘ID2’].isin(ltlist_set), 2, 0)) Option 2 Alternatively, you can use pd.DataFrame.loc sequentially: org[‘LT’] = 0 # default value org.loc[org[‘ID2’].isin(ltlist_set), ‘LT’] = 2 org.loc[org[‘ID’].isin(ltlist_set), ‘LT’] = 1 Option 3 A third option is to use numpy.select: conditions = [org[‘ID’].isin(ltlist_set), org[‘ID2’].isin(ltlist_set)] values = [1, 2] org[‘LT’] = … Read more

[Solved] error: expected ‘)’ before ‘*’ token

You omitted the typedef that you need to declare your struct alias s. The struct’s member is b rather than a. You failed to return anything from your functions. These should be void functions. You need parens around ss in func1. The parameterless main in C is int main(void).   #include <stdio.h> typedef struct s_{ … Read more

[Solved] find the input is alphanumeric or not with using #define macro preprocessor in c

Here is the macro: #define IS_ALNUM(x) (((x)>=’a’ && (x) <= ‘z’)) ||((x)>=’A’ && (x) <= ‘Z’)) || (((x)>=’0′ && (x) <= ‘9’))) It tests if it is Between a and z Between A and Z Between 0 and 9 Quite simple 2 solved find the input is alphanumeric or not with using #define macro preprocessor … Read more