**R help [R] Dealing with Duplicates - How to count instances?**

A 1 A 1 A 2 B 4 B 1 B 1 C 2 C 2 I would like to remove the duplicates based on both the columns: A 1 A 2 B 4... Stack Exchange Network Browse other questions tagged r or ask your own question. asked. 7 years, 11 months ago. viewed. 370,600 times. active . 3 years, 4 months ago... Take a subset, add each element into a hash table. If the hash table already contains a value - print out saying there is a duplicate. A hash table will only allocate 1 memory block per entry.

**algorithms Detect duplicate in a subset from a set of**

Second, you can define a hash function on the graph, and then calculate that for each graph. If the hash function is good, then you don't need to compare most pairs of graphs, because their hash will be different if they are different.... The easiest way to detect duplicates in Excel is using the COUNTIF function. Depending on whether you want to find duplicate values with or without first occurrences, there's going to be a slight variation in the formula as shown in the following examples.

**DoubleMetaphone Double Metaphone Phonetic Algorithm in**

Since there are n values from 1 to n-1 with one duplicate, we can use the fact that the sum of the integers from 1 to m is (m*(m+1))/2, take the sum from 1 to n-1, subtract that from the actual sum of numbers in the array, and the result will be the duplicated number:... I need to write a function that receives 2 arguments in R: first a number = X second a vector = V I need that this function would return the max number of the identical straight occurrences of X for example: f(6, c(7,6,6,3,7,9,3,6,6,6,8,9) should return 3

**How to Check Quantiles in R dummies**

The number of families along each lineage with a greater number of duplicates inferred by the gene tree method was divided by the total number of families with two or more genes in that lineage, resulting in the proportion of trees possibly affected by gene conversion (see results).... We see that rle() returns a list of two elements: lengths and values, where the latter gives the unique number of each run, and the former gives the run length, i.e. the number of consecutive repeats within each run. For example, the first run is the number 2 repeated 5 times, and the second run is the number 5 repeated once.

## How To Detect The Number Of Duplicates In Vector R

### Stata FAQ Identifying and dropping duplicate observations

- Re [igraph] Faster way to detect duplicate graphs in a
- R Value Matching
- How to insert two or more vector values into another
- How to insert two or more vector values into another

## How To Detect The Number Of Duplicates In Vector R

### finding a small number of duplicates. To enter the licence key, simply copy and paste both the key and your e-mail To enter the licence key, simply copy and paste both the key and your e-mail address from the email to the box in the Plugin Manager when the Find Duplicates plugin is selected.

- lapply() applies the function to each column and returns a list whose i-th element is a vector containing the indices of the elements which have missing values in column i. unlist() turns that list into a vector and unique() gets rid of the duplicates.
- 24/11/2016Â Â· The vector contains 1,4,9,16,9,7,4,9,11 im trying to remove the duplicates so that the vector only has 1,4,9,16,7,11. This is what i have so far.
- Starting with Stata 8, the duplicates command provides a way to report on, give examples of, list, browse, tag, or drop duplicate observations. This FAQ is likely only of interest to users of previous versions of Stata.
- Sort (or order) a vector or factor (partially) into ascending or descending order. For ordering along more than one variable, e.g., for sorting data frames, see order. logical. Should the sort be increasing or decreasing? For the "radix" method, this can be a vector of length equal to the number of

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