similar to: row subtraction

Displaying 20 results from an estimated 10000 matches similar to: "row subtraction"

2009 Oct 20
1
ScatterPlot
I am trying to make a scatterplot with containing three columns. I know how to plot the two columns but now the third column consists of M or F (male or female) and I don't know how to separate the data so I can make two separate regression lines on the same graph. meta #name of file plot(meta$mass, meta$rate, xlab="mass", ylab="rate") I can make the regression line
2011 Oct 25
2
column subtraction by row
Dear UseRs, I have a data frame that looks like this: head(test2) attributes start end StemExplant Callus RegenPlant 1 LTR_Unknown 120 535 3.198 1.931 1.927 3 LTR_Unknown 2955 3218 0.541 0.103 0.613 6 LTR_Unknown 6210 6423 6.080 4.650 9.081 9 LTR_Unknown 9658 10124 0.238 0.117 0.347 14 LTR_Unknown 14699 14894 3.545 3.625
2010 Feb 10
2
simple subtraction in a single vector
OK, this is very elementary, but I need help. I have looked in Verzani, past postings etc. Problem: I need to subtract the "length" date between "h4" and "a3" #which would be 4-1 I would rather not convert the two columns into four columns (with headings being "a3","a4","c4","h4"). DF <- data.frame(length=c(1,2,3,4),
2010 Jun 28
1
Subtraction loop
I have a data frame with 2 columns, one for day and one for average. The day starts at 97 all the way to 279. I want to subtract day 98 average- day 97 average, then day99 average -day 98 average and so on down my list, creating another column with the subtracted results. I have: Day DailyAverage 1 97 0.6076782 2 98 0.7121478 3 99 0.8059347 4 100 0.9545806 5
2010 Jun 17
1
Subtraction of group means using AGGREGATE and MERGE
Hi all, This is my first ever post, so forgive me and let me know if my etiquette is less than that required. I am searching for a faster way of subracting group means within a data frame than the solution I've found so far, using AGGREGATE and MERGE. I'll flesh my question out using a trivial example: I have a data frame Z with two columns - one X of values and one Y of labels: > Z
2010 Sep 27
2
subtraction based on two groups in a dataframe
Hello I have a data set like below: plate.id well.id Group HYB rlt1 1 P1 A1 Control SKOV3hyb 0.190 2 P1 A2 Control SKOV3hyb 0.210 3 P1 A3 Control SKOV3hyb 0.205 4 P1 A4 Control SKOV3hyb 0.206 5 P1 A5 Control SKOV3hyb 0.184 385 P1 A1 ovca SKOV3hyb 0.184 386 P1 A2 ovca SKOV3hyb 0.229 387
2017 May 16
2
[RFC] Canonicalization of unsigned subtraction with saturation
On 5/16/2017 6:30 AM, Sanjay Patel wrote: > Thanks for posting this question, Julia. > > I had a similar question about a signed min/max variant here: > http://lists.llvm.org/pipermail/llvm-dev/2016-November/106868.html > > The 2nd version in each case contains a canonical max/min > representation in IR, and this could enable more IR analysis. > A secondary advantage is
2012 Sep 12
3
how to create a substraction matrix (subtract a row of every column from the same row in other columns)
Hello I have data like this x1 x2 x3 x4 x5 I want to create a matrix similar to a correlation matrix, but with the difference between the two values, like this x1 x2 x3 x4 x5 x1 x2-x1 x3-x1 x4-x1 x5-x1 x2 x3-x2 x4-x2 x5-x2 x3 x4-x3 x5-x3 x4 x5-x4 x5 Then I
2011 May 25
1
Subtracting rows by id
Dear R users, I have two datasets: id1 <- c(rep(1,10), rep(2,10), rep(3,10)) value1 <- sample(1:100, 30, replace=TRUE) dataset1 <- cbind(id1,value1) id2 <- c(1,2,3) subtract.value <- c(1,3,5) dataset2 <- cbind(id2, subtract.value) I want to subtract the number of rows in the subtract.value that corresponds to the id value in dataset1. So for the 1 in id1, I want to
2005 Nov 15
2
Subtracting timeseries objects
Sorry to keep posting but I want to do this right and I'm hoping for some pointers I now have two time series objects which I need to subtract. Unfortunatly the two series dont have the same sample rates. When I try to subtract them avgSub<-avg1-avg2 The time series object is clever enough to object. So I guess I need to write a function for subtraction of the time series objects which
2002 Oct 31
1
Please Help. Subtraction of Matrices?
I am just beginning to learn R. Please help. I have two matrices. One 20 columns by 16 rows represent student responses on a 20 question test. The second is 20 by 16 representing the correct responses 16 times. Subtracting one from the other should yield 0's if a response is correct. Yet Response minus Bigkey doesn't work. Documents indicate vectors should add and subtract, and
2012 Nov 19
6
loop to subtract arrays / error
Hi everyone, I am having trouble with creating a loop to subtract arrays. In R, this is what I have done: > Vobsr <- read.csv("Observed_Flow.csv", header = TRUE, sep =",") # see data > below > Vsimr <- read.csv("1000Samples_Vsim.csv", header = TRUE, sep =",") # see > data below > Vobsr <- as.matrix(Vobsr[,-1]) # remove column 1 from
2013 Jan 14
1
hwo to subtract a child array from the big array?
hi R users I have a data set with the name AA AA<-1:100 Now I want to get a child array from AA every 10 numbers e.g. ab =c(10,20,30,40,50,60,70,80,100) How could I subtract aa from AA? thank you . -- TANG Jie Email: totangjie@gmail.com Tel: 0086-2154896104 Shanghai Typhoon Institute,China [[alternative HTML version deleted]]
2010 Sep 14
3
how to compute when row length is different
hi guys..please help me with this i am working on two data frames one goes like this: DF1 Sample_id RepairHours Denatured Dose ZeroMean FourtyFiveMean NinetyMean 1 SDM071 0 1 B 60.5 19.0 45.0 2 SDM071 1 1 B 46.0 23.0 42.5 3 SDM071 2 1 B 52.5 24.0 40.0 4 SDM071
2007 Nov 15
1
HELP: How to subtract a vector out of each row of a matrix or array
Hi All, I am having great trouble doing something pretty simple. Here is what I did: > x <- read.table("clipboard") > dim (x) [1] 126 10 > typeof(x) [1] "list" > w <- array(x) > typeof(w) "list" Q1: How come after constructing an array out of the list, the type of the array is still "list"? > w <- as.array(x) Error in
2017 May 16
2
[RFC] Canonicalization of unsigned subtraction with saturation
Hi, This message is a result of a discussion of backend optimization for sub(max) pattern(https://reviews.llvm.org/D25987), which can be either converted to unsigned min-max or unsigned saturation instruction(if the target supports it). Currently these versions of the code produce different IR(and we need to manage both types in backend): (1.16) void foo(unsigned short *p, unsigned short max,
2010 Feb 19
1
Subtracting one based on an If
For the following: Bldgid<-c(1000,1000,1000,1001,1002,1003,1003,1003) Maplot<-c(20000,20001,20002,30000,30001,40000,40001,40002) Area<-c(40,170,160,50,100,100,90,110) #Construct Sample dataframe MultiLotBldgs..<-data.frame(Bldgid,Maplot,Area) CondoLots_ <- tapply(MultiLotBldgs..$Maplot, MultiLotBldgs..$Bldgid, length) CondoLots_ Returns: 1000 1001 1002 1003 3 1 1
2011 Jan 25
4
Subtracting elements of data.frame
Dear R helpers I have a dataframe as df = data.frame(x = c(1, 14, 3, 21, 11), y = c(102, 500, 40, 101, 189)) > df    x   y 1  1 102 2 14 500 3  3  40 4 21 101 5 11 189 # Actually I am having dataframe having multiple columns. I am just giving an example. I need to subtract all the rows of df by the first row of df i.e. I need to subtract each element of 'x' column by 1. Likewise I
2012 Mar 29
2
subtract a list of vectors from a list of data.frames in an elegant way
Dear R experts, I've realized that it might not be possible to define a negative SELCET statement in a SQL call so now I'm looking for the smoothest way to generate a list of what I would like from my large database by first pulling all the names with a query like this "SELECT top 1 * FROM your_table" (thank you Bart Joosen for the idea) and then subtract the variables I am not
2008 Jan 29
2
add/subtract matrices, ignoring NA or missing values
Hi, For example, given two 2x2 matrices m1 and m2. I would like to add/subtract element by element > m1 [,1] [,2] [1,] NA NA [2,] 1 2 > m2 [,1] [,2] [1,] 1 NA [2,] NA 2 > m1 + m2 [,1] [,2] [1,] NA NA [2,] NA 4 How can I ignore the NA, and get this ? Hope the solution can be extended to subtract and modulo also. [,1] [,2]