similar to: Cumulative Frequency Graph

myDF <- data.frame(a = c("<0.1", NA, 0.3, 5, "Nil"), b = c("<0.1", 1, 0.3, 5, "Nil"), stringsAsFactors = FALSE) # you can subset the b-column in several ways myDF[ , 2] myDF[ , "b"] myDF$b # using the column, you make a logical vector ! is.na(as.numeric(myDF$b)) # This can be used to select the

Super, Thanks On Fri, Sep 22, 2017 at 4:57 PM, Boris Steipe <boris.steipe at utoronto.ca> wrote: > > a <- c("<0.1", NA, 0.3, 5, "Nil") > > a > [1] "<0.1" NA "0.3" "5" "Nil" > > > b <- as.numeric(a) > Warning message: > NAs introduced by coercion > > b > [1] NA NA 0.3

Hi, Lets say this was a dataframe where I had two columns a <- c("<0.1", NA, 0.3, 5, "Nil") b <- c("<0.1", 1, 0.3, 5, "Nil") And I just want to remove the rows from the dataframe where there were NAs in the b column, what is the syntax for doing that? Thanks in advance On Fri, Sep 22, 2017 at 5:04 PM, Shane Carey <careyshan at

Always via logical expressions. In this case you can use the logical expression myDF$b != "0" to give you a vector of TRUE/FALSE B. > On Sep 25, 2017, at 8:00 AM, Shane Carey <careyshan at gmail.com> wrote: > > This is super, really helpfull. Sorry, one final question, lets say I wanted to remove 0's rather than NAs , what would it be? > > Thanks >

This is super, really helpfull. Sorry, one final question, lets say I wanted to remove 0's rather than NAs , what would it be? Thanks On Mon, Sep 25, 2017 at 12:41 PM, Boris Steipe <boris.steipe at utoronto.ca> wrote: > myDF <- data.frame(a = c("<0.1", NA, 0.3, 5, "Nil"), > b = c("<0.1", 1, 0.3, 5, "Nil"), >

Hi, I have a set of x, y points where x represents dates and y actual values. I am trying to plot a line graph of the data with points on top, but R is connecting the wrong points with lines. Does anyone know how I can rectify this. Please see sample below: x= 24/09/2009 09:13 16/10/2009 11:17 24/10/2009 21:43 11/09/2009 18:34 22/08/2009 15:45 10/08/2009 00:30 14/08/2009 14:52 24/09/2009

I was thinking of splitting the y-axis into two? Is this possible? Thanks -- Shane [[alternative HTML version deleted]]

Hi, How do I extract just numbers from the following list: a=c("<0.1",NA,0.3,5,Nil) so I want to obtain: 0.3 and 5 from the above list Thanks -- Le gach dea ghui, *Shane Carey* *GIS and Data Solutions Consultant* [[alternative HTML version deleted]]

Hi, I have a histogram with values logged to the base 10 hist(log10(x),breaks=60) How do I show the log values on the x-axis and a second x-axis showing the real values? Thanks -- Shane [[alternative HTML version deleted]]

> a <- c("<0.1", NA, 0.3, 5, "Nil") > a [1] "<0.1" NA "0.3" "5" "Nil" > b <- as.numeric(a) Warning message: NAs introduced by coercion > b [1] NA NA 0.3 5.0 NA > b[! is.na(b)] [1] 0.3 5.0 B. > On Sep 22, 2017, at 11:48 AM, Shane Carey <careyshan at gmail.com> wrote: > > Hi,

What does these operators do: %*% Thanks -- Shane [[alternative HTML version deleted]]

I have x, y, z data. The x, y fields dont change but Z does. How do I add a very small number onto the end of each x, y data point. For example: Original (X) Original (Y) Original (Z) 15 20 30 15 20 40 New (X) New (Y)

Hi, How do I write a superscript within gsub? I have the following: gsub("_mgkg",expression(paste("mg kg"^{-1})),names[1]) Thanks -- Shane [[alternative HTML version deleted]]

Hi, I have a string of text as follows "LOI ." How do I replace the dot with "(%)" gsub(".","(%)",LOI .) gives "(%)(%)(%)(%)(%)" Thanks -- Shane [[alternative HTML version deleted]]

Hi, Rather than a graph label to display labels as 0e+00, how do I get it to display the real value? Thanks -- Shane [[alternative HTML version deleted]]

Hi, Can R read in .xyz files? If so, what is the package, thanks -- Shane [[alternative HTML version deleted]]

Hi, Im reading in a .txt file into R that consists of 5 columns, however, when imported into R, it reads all the data into just one column. Is there a way of telling R to create a dataframe with 5 columns rather than putting all the data into one column? Thanks -- Shane [[alternative HTML version deleted]]

Dear masters, I have data that looks like this: #val Freq1 Freq2 0.000 178 202 0.001 4611 5300 0.002 99 112 0.003 26 30 0.004 17 20 0.005 15 20 0.006 11 14 0.007 11 13 0.008 13 13 ...many more lines.. Full data can be found here: http://dpaste.com/173536/plain/ What I intend to do is to have a cumulative graph with "val" as x-axis with "Freq1" & "Freq2" as

Dear Knowledgeable R Community Members, Please excuse my ignorance, I apologize in advance if this is an easy question, but I am a bit stumped and could use a little guidance. I have a finite mixture modeling problem -- for example, a 2-component gaussian mixture -- where the components have a large overlap, and I am trying to use the "mclust" package to solve this problem. I need

Does R do cumulative frequency distribution plots? -- Tommy E. Cathey, Senior Scientific Application Consultant High Performance Computing & Scientific Visualization SAIC, Supporting the EPA Research Triangle Park, NC 919-541-1500 EMail: cathey.tommy at epa.gov My e-mail does not reflect the opinion of SAIC or the EPA. Federal Contact - John B. Smith 919-541-1087 - smith.johnb at epa.gov