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I have a data frame with a patient_name, treatment_status[positive, negative], values
variable = treatment_status
So its something like this should work -
ggplot(data = dat_m, aes(variable, value, group=factor(Patient_Name))) +
geom_jitter(aes(color=factor(variable)))
But unfortunately my patient names don't show up across the x-axis. Is there any way to get this going. Much appreciate any help.
Sounds like you need a interaction function. Try this:
ggplot(data = dat_m, aes(x=interaction(Patient_Name,variable), value) +
geom_jitter(aes(color=factor(variable)))
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I’m new to R and I’m trying to add 15 to every figure in my dataset for a specific column and was wondering how it’s possible to this. Any help would be much appreciated, thanks.
Asssuming you have a data.frame df with a column col that you want to increase:
df$col <- df$col + 15
No loop required, the fundamental objects in R are vectors.
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If I have a data.frame that contain the variables that listed in df$Var. Is it a way for me to reorder my data col in the order of df$Var?
The df is looks like this:
Is it a way I can sort dt so the col in dt will in the order of var in df?
Thanks.
We can use factor with levels specified as the values in 'df1$Var'
dt1[order(factor(names(dt1), levels = df1$Var))]
Or use match
dt1[order(match(names(dt1), df1$Var))]
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Looking for other way than ifelse.
How to create NewColumn like this:
As displayed in your picture, you want to paste together two columns. Assuming your dataframe is called df, you can do:
df$NewColumn <- paste(df$Column2,"",df$Column1)
Which will get you the outcome in the picture.
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I am having trouble operating Matrixs.
First, I want to make factor data to integer so i can operate.
Second, The First col, which shows date, should be factor. How can i change?
Try this:
d <- data.frame(1:10, letters[1:10])
data.matrix(d)
Also you can try this too :
m = matrix(scan("file.csv", what=numeric(), skip=1))
skip=1 to skip a header line.
Hope this will help you
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I know that looks like a silly question but how can I plot this function,
|x|+|y|=z
in 2D by R. I know that is a kind of contour plot but don't know how to manage that.
you can use contour and try this small example
X=seq(-1, 1, length.out=10)
Y=seq(-1, 1, length.out=10)
Z=outer(X, Y, FUN= function(x,y) abs(x)+abs(y))
contour(x=X, y=Y, z=Z)