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6 results for “from:Stephen HonKit Wong”

How to modify data frame stored in a list
Stephen HonKit Wong · Jun 18, 2018 · r-help

Dear R community, I have a question seems very simple but have trouble to do it. I have a list which stores many data frames. Now, I want to perform log10 on one column in each data frame in the...

heatmap ploting
Stephen HonKit Wong · Nov 5, 2021 · r-help

Dear Community, I have an example heatmap plot in this link <https://drive.google.com/file/d/15ePaR0gC2IKXm2gkeGylZ4vM_MEsWyW0/view?usp=sharing> which was generated by java I believe, I want to make a similar plot in R. Any clues...

how to make row.names based on column1 with duplicated values
Stephen HonKit Wong · Feb 28, 2018 · r-help

Dear All, Suppose I have a dataframe like this with many thousands rows all with different names: data.frame(gene=c("a","b","c","d","c","d","c","f"),value=c(20,300,48,55,9,2,100,200)), I...

a difficult situation, how to do this using base function.
Stephen HonKit Wong · Jul 21, 2017 · r-help

Hello, I have a following dataframe with many rows. data.frame(match.start=c(5,10,100,200),range.coordinates=c("1000-1050","1500-1555","5000-5050,6000-6180","100-150,200-260,600-900")) match.start range.coordinates 5...

how to make the code more efficient using lapply
Stephen HonKit Wong · May 24, 2018 · r-help

Dear All, I have a following for-loop code which is basically intended to read in many excel files (each file has many columns and rows) in a directory and extract the some rows and columns out of each file...

How to modify data frame stored in a list
Stephen HonKit Wong · Jun 18, 2018 · r-help

Thanks! Why have to add ?x? at the end of function, which was what I missed. > On Jun 18, 2018, at 2:53 PM, Bert Gunter <bgunter.4567 at gmail.com> wrote: > > It depends on whether you wish to refer...

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