Entering edit mode

4 months ago

imrankhanbioinfo
▴
40

Hi there,

How is it possible to calculate the Mean of the median-centered z-score? Taking the below script as an example of a data frame. I need to develop a score for each subject. (My dataset is different this is just an example)

Thank you!

Imran

```
student_id <- seq(1,10)
math <- c(502,600,412,358,495,512,410,625,573,522)
science <- c(95,99,80,82,75,85,80,95,89,86)
english <- c(25,22,18,15,20,28,15,30,27,18)
df_student <- data.frame(student_id,math,science,english)
View(df_student)
z <- scale(df_student[,2:4],center=TRUE,scale=TRUE)
View(z)
```

Please explain how this is related to bioinformatics.

I need to develop an immune score related to my research. Unfortunately, my statistic is not that good to solve the problem just applying scale().

You can use

`scale`

with`median`

and`apply`

to get to where you need.`apply`

the`median`

function to the`scale`

d dataset along the dimension of interest.one step more:

`apply(z,2,median)`