Moderator: zx8754

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zx87545.6k
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"If you torture the data long enough, it will confess." - Ronald Coase

Posts by zx8754

<prev • 632 results • page 1 of 64 • next >
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Comment: C: Take out One percent of the tops of numbers from the column in the table
... Read about `rbind`, and as a general advice, please invest some time to learn basics of **R**. ...
written 3 hours ago by zx87545.6k
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Answer: A: Take out One percent of the tops of numbers from the column in the table
... Something like this, keep only rows that matches max of `Z_W_FST`, then get sample fraction, using `set.seed(1)` to make sampling reproducible: library(dplyr) set.seed(1); myData %>% filter(Z_W_FST == max(Z_W_FST)) %>% sample_frac(0.01) ...
written 6 hours ago by zx87545.6k
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Comment: C: Take out One percent of the tops of numbers from the column in the table
... What do you mean by `"tops of numbers"` ? ...
written 7 hours ago by zx87545.6k
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Comment: C: Take out One percent of the tops of numbers from the column in the table
... Please clarify what you mean by > One percent of the tops of numbers from Z_W_FST ...
written 9 hours ago by zx87545.6k
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Using repeat region filter post QC
... We have NGS whole exome data for 2000 cases and 2000 controls study. Sequencing and QC is done by third party, in theory we already have a *"clean"* data. Planning to do gene based tests (skat, burden, etc, or any other analysis), would you advise additionally remove any (all?) of below repeat regi ...
exome filter ngs repeats written 10 hours ago by zx87545.6k • updated 10 hours ago by Pierre Lindenbaum114k
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Comment: C: Struggling to filter data with R, tidyverse
... The speed was the main reason Matt Dowle (author) started developing his own faster version of dataframes. ...
written 23 hours ago by zx87545.6k
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Answer: A: Struggling to filter data with R, tidyverse
... Here is using *data.table:foverlap*: # example input uu_sample <- data.frame(chrs = c(1:10), starts = c(1:10), ends = c(2:11)) dd_sample <- data.frame(chrs = c(2:12), starts = c(2:12), ...
written 1 day ago by zx87545.6k
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Comment: C: Struggling to filter data with R, tidyverse
... What you are describing is not "filter" but "merge by overlap". Read about `data.table::foverlap` and `iranges::findOverlaps`, and see this post at SO: - [Finding overlap in ranges with R][1] [1]: https://stackoverflow.com/q/3916195/680068 ...
written 1 day ago by zx87545.6k
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Comment: C: Conversion from SNP physical map to genetic distance
... Related, possible duplicate post? - https://www.biostars.org/p/16236/ ...
written 7 days ago by zx87545.6k
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Comment: C: Counting the frequency of genotypes per row based on the calls of the first colu
... Use `na.rm=TRUE` to ignore NAs. [Read the manuals][1]. [1]: https://stat.ethz.ch/R-manual/R-devel/library/base/html/colSums.html ...
written 7 days ago by zx87545.6k

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