How to subset a matrix with different column positions for each row? [duplicate]

by

More Related Contents:

  1. How to subset matrix to one column, maintain matrix data type, maintain row/column names?
  2. Extract matrix column values by matrix column name
  3. How to remove rows of a matrix by row name, rather than numerical index?
  4. Convert an upper to lower triangle matrix in r [duplicate]
  5. R memory management / cannot allocate vector of size n Mb
  6. Subset data frame based on number of rows per group
  7. Sum rows in data.frame or matrix
  8. How to drop columns by name in a data frame
  9. Subset / filter rows in a data frame based on a condition in a column
  10. Select groups with more than one distinct value
  11. Remove group from data.frame if at least one group member meets condition
  12. Subset a dataframe between 2 dates
  13. Subset data to contain only columns whose names match a condition
  14. Subset and ggplot2
  15. Subset a matrix according to a columns vector
  16. subset a column in data frame based on another data frame/list
  17. Using multiple criteria in subset function and logical operators
  18. R – image of a pixel matrix?
  19. Get all diagonal vectors from matrix
  20. Split/subset a data frame by factors in one column [duplicate]
  21. find neighbouring elements of a matrix in R
  22. Convert character matrix into numeric matrix
  23. Selecting columns in R data frame based on those *not* in a vector
  24. Subsetting data.table set by date range in R
  25. Return df with a columns values that occur more than once [duplicate]
  26. How to find the indices of the top 10,000 elements in a symmetric matrix(12k X 12k) in R
  27. Undefined columns selected when subsetting data frame
  28. fast large matrix multiplication in R
  29. How to get all possible subsets of a character vector in R?
  30. Filtering rows in R unexpectedly removes NAs when using subset or dplyr::filter

Leave a Comment