**R help How to convert blanks to NA - Nabble**

R - Given a matrix and a power, produce multiple matrices containing all unique combinations of matrix columns Hot Network Questions Through what logic are Republicans able to say that the current American government shutdown is “the Democrats’ fault”?... I have the following vector: x <- c(3, 7, NA, 4, 8) And I just want to know the index of the NA in the vector. If, for instance, I wanted to know the index of 7, the following code would work:

**r Finding the index of an NA value in a vector - Stack**

Extract NA data rows. hi i have the following dataframe x y 1 345 6 NA 8 123 32 123 12 NA 6 124 7 NA and i want to extract the data rows which contains "NA" data, I... R › R …... solve complicated problems (not all the problems) in string matching and manipulation, and may reduce the time spent on R code writing and maintanence. The purpose of this presentation is to introduce regular expressions by showing several ex-

**R Function of the Day table R-bloggers**

To remove all rows that contain NA-values, one of the easiest options is to use the na.omit() function, which takes your data frame as an argument. Let’s recycle the code from the previous section in which two data frames were merged, with a lot of resulting NA-values: eso how to get pact guard armor The default value for the probs argument is a vector representing the minimum (0), the first quartile (0.25), the median (0.5), the third quartile (0.75), and the maximum (1). The argument na.rm allows you to remove all NA values before calculating the respective statistic.

**R help Length of vector without NA's - Nabble**

Does this do what you want x <- data.frame(1,"" , 5) x[x==""] <- NA x where x is substituted for your 'data'? ----- Original Message ---- From: Mark Na <[hidden email]> To: [hidden email] Sent: Tuesday, June 2, 2009 3:14:00 PM Subject: [R] How to convert blanks to NA Hi R-helpers, I have imported data from Excel using the following code how to make front hair grow faster naturally Hi, how can I replace NA value with 0: 1991 217 119 103 109 137 202 283 240 146 NA 1992 270 174 149 144 166 239 278 237 275 NA 1993 146 111 104 89 98 131 153 148 175 NA 1994 177 123 146 124 121 200 266 191 240 106 1995 145 98 95 89 95 130 183 161 164 129 1996 145 98 89 90 93 138 158 131 161 161 1991 217 119 103 109 137

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### R help How to replace all values in a data.frame

- r Finding the index of an NA value in a vector - Stack
- Match() R Examples
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- r Finding the index of an NA value in a vector - Stack

## How To Find All Values That Are Not Na R

I have a massive dataset with titles across the top for the row. All the values in the dataset are number minus about 50 of them which are NA. I need to find the median of each column whilst someh...

- Missing Value Treatment. Missing values in data is a common phenomenon in real world problems. Knowing how to handle missing values effectively is a required step to …
- Notice that the logical expression x == NA is quite different from is.na(x) since NA is not really a value but a marker for a quantity that is not available. Thus x == NA is a vector of the same length as x all of whose values are NA as the logical expression itself is incomplete and hence undecidable.
- If na.rm is FALSE an NA or NaN value in any of the arguments will cause a value of NA or NaN to be returned, otherwise NA and NaN values are ignored. Logical true values are regarded as one, false values …
- If na.rm is FALSE an NA or NaN value in any of the arguments will cause a value of NA or NaN to be returned, otherwise NA and NaN values are ignored. Logical true values are regarded as one, false values …