Project: report.
This report is meant to help explore the results of the derfinder
(Collado-Torres, Frazee, Love, Irizarry, et al., 2015) package and was generated using regionReport
(Collado-Torres, Jaffe, and Leek, 2015) package. While the report is rich, it is meant to just start the exploration of the results and exemplify some of the code used to do so. You will most likely need a more in-depth analysis for your specific data set.
Most plots were made with using ggplot2
(Wickham, 2009).
Theoretically, the p-values should be uniformly distributed between 0 and 1.
## Min. 1st Qu. Median Mean 3rd Qu. Max.
## 0.01887 0.01887 0.62260 0.40650 0.62260 0.96230
This is the numerical summary of the distribution of the p-values.
## Min. 1st Qu. Median Mean 3rd Qu. Max.
## 0.01338 0.01338 0.20570 0.13420 0.20570 0.24810
This is the numerical summary of the distribution of the q-values.
Cut | Count |
---|---|
0.0001 | 0 |
0.0010 | 0 |
0.0100 | 0 |
0.0250 | 12 |
0.0500 | 12 |
0.1000 | 12 |
0.2000 | 15 |
0.3000 | 33 |
0.4000 | 33 |
0.5000 | 33 |
0.6000 | 33 |
0.7000 | 33 |
0.8000 | 33 |
0.9000 | 33 |
1.0000 | 33 |
This table shows the number of candidate Differentially Expressed Regions (DERs) with q-value less or equal than some commonly used cutoff values.
This is the numerical summary of the distribution of the q-values. Skipped because there are no FWER-adjusted P-values.
This table shows the number of candidate Differentially Expressed Regions (DERs) with FWER adjusted p-values less or equal than some commonly used cutoff values. Skipped because there are no FWER-adjusted P-values.
This plot shows the density of the region lengths for all regions. The bottom panel is restricted to significant regions (q-value < 0.1)
This plot shows the density of the region areas for all regions. The bottom panel is restricted to significant regions (q-value < 0.1)
This plot shows the density of the null region lengths and areas. There were a total of 52 null regions.
This plot shows the density of the region mean coverage for all regions. The bottom panel is restricted to significant regions (q-value < 0.1)
The following plots are MA-style plots comparing each group vs the first one. The mean coverage is calculated using only two groups at a time and is weighted according to the number of samples on each group. Note that the mean coverage and fold change as calculated here do not taking into account the library sizes.
These plots are only shown when there are two or more groups. A total of 1 plot(s) were made.
The following plots were made using ggbio
(Yin, Cook, and Lawrence, 2012) which in turn uses ggplot2
(Wickham, 2009). For more details check plotOverview
in derfinder
(Collado-Torres, Frazee, Love, Irizarry, et al., 2015).
This plot shows the genomic locations of the candidate regions found in the analysis. The significant regions (q-value less than 0.1) are highlighted and the area of the regions is shown on top of each chromosome. Note that the area is in a relative scale.
This genomic overview plot shows the annotation region type for the candidate regions. Note that the regions are shown only if the annotation information is available. Below is a table of the actual number of results per annotation region type.
Region | Count |
---|---|
upstream | 0 |
promoter | 0 |
overlaps 5' | 0 |
inside | 33 |
overlaps 3' | 0 |
close to 3' | 0 |
downstream | 0 |
covers | 0 |
NA | 0 |
This genomic overview plot shows the annotation region type for the candidate regions that have a q-value less than 0.1. Note that the regions are shown only if the annotation information is available.
Below are the plots for the top 15 candidate DERs as ranked by area. For each plot, annotation is shown if the candidate DER has a minimum overlap of 20 base pairs with annotation information (strand specific). If present, exons are collapsed and shown in blue. Introns are shown in light blue. The title of each plot is composed of the name of the nearest annotation element, the distance to it, and whether the region of the genome the DER falls into; all three pieces of information are based on bumphunter::annotateNearest()
.
The annotation depends on the Genomic State used. For details on which one was used for this report check the call to mergeResults
in the reproducibility details.
Below is a table summarizing the number of genomic states per region.
Number of Overlapping States | Frequency | State |
---|---|---|
0 | 22 | exon |
1 | 11 | exon |
0 | 33 | intergenic |
0 | 30 | intron |
1 | 3 | intron |
Below is an interactive table with the top 33 regions (out of 33) as ranked by area. Inf and -Inf are shown as 1e100 and -1e100 respectively.
areaRank | seqnames | start | end | width | strand | value | area | indexStart | indexEnd | cluster | clusterL | meanCoverage | meanCEU | meanYRI | log2FoldChangeYRIvsCEU | pvalues | significant | qvalues | significantQval | name | annotation | description | region | distance | subregion | insidedistance | exonnumber | nexons | UTR | annoStrand | geneL | codingL |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | chr21 | 47409522 | 47409560 | 39 |
|
15.053644 | 587.092111 | 128 | 166 | 3 | 167 | 0.4152192 | 0.6129426 | 0.0000000 | -1.000000e+100 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 7859 | inside exon | 0 | 10 | 35 | inside transcription region |
|
23300 | 22162 |
2 | chr21 | 47411924 | 47411986 | 63 |
|
7.096704 | 447.092322 | 618 | 680 | 6 | 389 | 0.5847414 | 0.8374906 | 0.0539683 | -3.955890e+00 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 10261 | inside exon | 0 | 16 | 35 | inside transcription region |
|
23300 | 22162 |
3 | chr21 | 47417352 | 47417397 | 46 |
|
8.778446 | 403.808491 | 1292 | 1337 | 10 | 338 | 0.3646564 | 0.5331263 | 0.0108696 | -5.616111e+00 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 15689 | inside exon | 0 | 21 | 35 | inside transcription region |
|
23300 | 22162 |
4 | chr21 | 47412662 | 47412724 | 63 |
|
5.671216 | 357.286601 | 843 | 905 | 7 | 63 | 0.5012801 | 0.7399849 | 0.0000000 | -1.000000e+100 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 10999 | inside exon | 0 | 19 | 35 | inside transcription region |
|
23300 | 22162 |
5 | chr21 | 47408998 | 47409026 | 29 |
|
10.685252 | 309.872297 | 69 | 97 | 2 | 232 | 0.1957731 | 0.2889984 | 0.0000000 | -1.000000e+100 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 7335 | inside exon | 0 | 9 | 35 | inside transcription region |
|
23300 | 22162 |
6 | chr21 | 47414081 | 47414143 | 63 |
|
3.308408 | 208.429718 | 994 | 1056 | 8 | 63 | 0.3645673 | 0.5381708 | 0.0000000 | -1.000000e+100 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 12418 | inside exon | 0 | 20 | 35 | inside transcription region |
|
23300 | 22162 |
7 | chr21 | 47410893 | 47410930 | 38 |
|
5.452573 | 207.197772 | 407 | 444 | 5 | 269 | 0.4151104 | 0.6127820 | 0.0000000 | -1.000000e+100 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 9230 | inside exon | 0 | 15 | 35 | inside transcription region |
|
23300 | 22162 |
8 | chr21 | 47416094 | 47416131 | 38 |
|
5.109484 | 194.160408 | 1165 | 1202 | 9 | 222 | 0.0322581 | 0.0476190 | 0.0000000 | -1.000000e+100 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | inside intron | inside | 14431 | inside intron | 1204 | 21 | 35 | inside transcription region |
|
23300 | 22162 |
9 | chr21 | 47415910 | 47415945 | 36 |
|
5.109484 | 183.941439 | 1129 | 1164 | 9 | 222 | 0.0322581 | 0.0476190 | 0.0000000 | -1.000000e+100 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | inside intron | inside | 14247 | inside intron | 1390 | 21 | 35 | inside transcription region |
|
23300 | 22162 |
10 | chr21 | 47412088 | 47412131 | 44 |
|
3.344261 | 147.147470 | 691 | 734 | 6 | 389 | 0.4464809 | 0.6590909 | 0.0000000 | -1.000000e+100 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 10425 | inside exon | 0 | 17 | 35 | inside transcription region |
|
23300 | 22162 |
11 | chr21 | 47412277 | 47412312 | 36 |
|
3.575484 | 128.717432 | 735 | 770 | 6 | 389 | 0.5053763 | 0.7460317 | 0.0000000 | -1.000000e+100 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 10614 | inside exon | 0 | 18 | 35 | inside transcription region |
|
23300 | 22162 |
12 | chr21 | 47409034 | 47409056 | 23 |
|
5.557125 | 127.813881 | 105 | 127 | 2 | 232 | 0.1402525 | 0.2070393 | 0.0000000 | -1.000000e+100 | 0.0188679 | TRUE | 0.0133769 | TRUE | COL6A1 | NM_001848 NP_001839 | overlaps exon downstream | inside | 7371 | overlaps exon downstream | 0 | 9 | 35 | inside transcription region |
|
23300 | 22162 |
13 | chr21 | 47417614 | 47417650 | 37 |
|
2.849383 | 105.427164 | 1338 | 1374 | 10 | 338 | 0.4027899 | 0.5469755 | 0.1000000 | -2.451476e+00 | 0.2452830 | FALSE | 0.1605224 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 15951 | inside exon | 0 | 22 | 35 | inside transcription region |
|
23300 | 22162 |
14 | chr21 | 47410934 | 47410955 | 22 |
|
3.652389 | 80.352551 | 448 | 469 | 5 | 269 | 0.3079179 | 0.4545455 | 0.0000000 | -1.000000e+100 | 0.3207547 | FALSE | 0.1819254 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 9271 | inside exon | 0 | 15 | 35 | inside transcription region |
|
23300 | 22162 |
15 | chr21 | 47407554 | 47407568 | 15 |
|
4.704220 | 70.563298 | 18 | 32 | 1 | 32 | 0.2688172 | 0.3968254 | 0.0000000 | -1.000000e+100 | 0.3207547 | FALSE | 0.1819254 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 5891 | inside exon | 0 | 8 | 35 | inside transcription region |
|
23300 | 22162 |
16 | chr21 | 47408825 | 47408860 | 36 |
|
1.161740 | 41.822652 | 33 | 68 | 2 | 232 | 0.0322581 | 0.0476190 | 0.0000000 | -1.000000e+100 | 0.5849057 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside intron | inside | 7162 | inside intron | 138 | 9 | 35 | inside transcription region |
|
23300 | 22162 |
17 | chr21 | 47410702 | 47410714 | 13 |
|
2.378483 | 30.920276 | 368 | 380 | 5 | 269 | 0.5831266 | 0.8608059 | 0.0000000 | -1.000000e+100 | 0.6226415 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 9039 | inside exon | 0 | 14 | 35 | inside transcription region |
|
23300 | 22162 |
18 | chr21 | 47410292 | 47410305 | 14 |
|
2.166562 | 30.331874 | 227 | 240 | 4 | 159 | 0.7672811 | 1.1156463 | 0.0357143 | -4.965235e+00 | 0.6226415 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 8629 | inside exon | 0 | 13 | 35 | inside transcription region |
|
23300 | 22162 |
19 | chr21 | 47410188 | 47410198 | 11 |
|
2.569046 | 28.259510 | 216 | 226 | 4 | 159 | 0.7947214 | 1.1255411 | 0.1000000 | -3.492547e+00 | 0.6226415 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 8525 | inside exon | 0 | 12 | 35 | inside transcription region |
|
23300 | 22162 |
20 | chr21 | 47410731 | 47410740 | 10 |
|
2.698208 | 26.982075 | 397 | 406 | 5 | 269 | 0.5064516 | 0.7476190 | 0.0000000 | -1.000000e+100 | 0.6226415 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 9068 | inside exon | 0 | 14 | 35 | inside transcription region |
|
23300 | 22162 |
21 | chr21 | 47407537 | 47407542 | 6 |
|
4.061822 | 24.370932 | 1 | 6 | 1 | 32 | 0.0591398 | 0.0873016 | 0.0000000 | -1.000000e+100 | 0.6226415 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 5874 | inside exon | 0 | 8 | 35 | inside transcription region |
|
23300 | 22162 |
22 | chr21 | 47410687 | 47410698 | 12 |
|
1.773713 | 21.284559 | 353 | 364 | 5 | 269 | 0.6801075 | 1.0039683 | 0.0000000 | -1.000000e+100 | 0.6226415 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 9024 | inside exon | 0 | 14 | 35 | inside transcription region |
|
23300 | 22162 |
23 | chr21 | 47410175 | 47410184 | 10 |
|
1.857995 | 18.579952 | 203 | 212 | 4 | 159 | 0.7354839 | 1.0380952 | 0.1000000 | -3.375867e+00 | 0.6226415 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 8512 | inside exon | 0 | 12 | 35 | inside transcription region |
|
23300 | 22162 |
24 | chr21 | 47410314 | 47410322 | 9 |
|
2.063009 | 18.567083 | 249 | 257 | 4 | 159 | 0.6487455 | 0.9576720 | 0.0000000 | -1.000000e+100 | 0.6226415 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 8651 | inside exon | 0 | 13 | 35 | inside transcription region |
|
23300 | 22162 |
25 | chr21 | 47410716 | 47410726 | 11 |
|
1.631502 | 17.946526 | 382 | 392 | 5 | 269 | 0.5630499 | 0.8311688 | 0.0000000 | -1.000000e+100 | 0.6226415 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 9053 | inside exon | 0 | 14 | 35 | inside transcription region |
|
23300 | 22162 |
26 | chr21 | 47412078 | 47412083 | 6 |
|
2.293818 | 13.762909 | 681 | 686 | 6 | 389 | 0.4139785 | 0.6031746 | 0.0166667 | -5.177538e+00 | 0.6981132 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 10415 | inside exon | 0 | 17 | 35 | inside transcription region |
|
23300 | 22162 |
27 | chr21 | 47417655 | 47417662 | 8 |
|
1.570295 | 12.562357 | 1379 | 1386 | 10 | 338 | 0.2822581 | 0.4166667 | 0.0000000 | -1.000000e+100 | 0.6981132 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 15992 | inside exon | 0 | 22 | 35 | inside transcription region |
|
23300 | 22162 |
28 | chr21 | 47410327 | 47410333 | 7 |
|
1.521231 | 10.648620 | 262 | 268 | 4 | 159 | 0.7557604 | 1.1156463 | 0.0000000 | -1.000000e+100 | 0.6981132 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 8664 | inside exon | 0 | 13 | 35 | inside transcription region |
|
23300 | 22162 |
29 | chr21 | 47417666 | 47417672 | 7 |
|
1.215518 | 8.508629 | 1390 | 1396 | 10 | 338 | 0.2258065 | 0.3333333 | 0.0000000 | -1.000000e+100 | 0.7358491 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 16003 | inside exon | 0 | 22 | 35 | inside transcription region |
|
23300 | 22162 |
30 | chr21 | 47409685 | 47409688 | 4 |
|
1.215855 | 4.863420 | 192 | 195 | 3 | 167 | 0.4758065 | 0.6547619 | 0.1000000 | -2.710970e+00 | 0.7735849 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 8022 | inside exon | 0 | 11 | 35 | inside transcription region |
|
23300 | 22162 |
31 | chr21 | 47417335 | 47417337 | 3 |
|
1.591623 | 4.774869 | 1275 | 1277 | 10 | 338 | 0.1290323 | 0.1904762 | 0.0000000 | -1.000000e+100 | 0.7735849 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 15672 | inside exon | 0 | 21 | 35 | inside transcription region |
|
23300 | 22162 |
32 | chr21 | 47418068 | 47418068 | 1 |
|
3.997655 | 3.997655 | 1434 | 1434 | 11 | 1 | 0.0322581 | 0.0476190 | 0.0000000 | -1.000000e+100 | 0.7735849 | FALSE | 0.2056693 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 16405 | inside exon | 0 | 23 | 35 | inside transcription region |
|
23300 | 22162 |
33 | chr21 | 47410311 | 47410312 | 2 |
|
1.143626 | 2.287252 | 246 | 247 | 4 | 159 | 0.7258065 | 1.0714286 | 0.0000000 | -1.000000e+100 | 0.9622642 | FALSE | 0.2480801 | FALSE | COL6A1 | NM_001848 NP_001839 | inside exon | inside | 8648 | inside exon | 0 | 13 | 35 | inside transcription region |
|
23300 | 22162 |
The following plots were made using ggbio
(Yin, Cook, and Lawrence, 2012) which in turn uses ggplot2
(Wickham, 2009). For more details check plotCluster()
in derfinder
(Collado-Torres, Frazee, Love, Irizarry, et al., 2015).
Below are the best 2 region clusters ordered by cluster area (sum of the area of regions inside a cluster). The region with the highest area in the cluster is shown with a red bar.
Below is the information on how the samples were permutted.
## CEU YRI
## Min. : 6.00 Min. :4.0
## 1st Qu.: 8.25 1st Qu.:4.5
## Median :10.50 Median :5.0
## Mean :10.50 Mean :5.0
## 3rd Qu.:12.75 3rd Qu.:5.5
## Max. :15.00 Max. :6.0
This table shows the summary per group of how many samples were assigned to the group. It can be used for fast detection of anomalies. Also note that 0 permutations out of 1 total permutations resulted in the same grouping as in the original observed data.
Note that in derfinder
the re-sampling of the samples is done without replacement. This is done to avoid singular model matrices. While the sample balance is the same across the permutations, what changes are the adjusted variables (including the column medians).
The following table shows how the group labels were permuted. This can be useful to detect whether a permutation in particular had too many samples of a group labeled as another group, meaning that the resulting permuted group label resulted in pretty much a name change.
permutation | group | CEU | YRI |
---|---|---|---|
1 | CEU | 15 | 6 |
1 | YRI | 6 | 4 |
The F-statistic cutoff used was 1 and type of cutoff used was manual. Furthermore, the maximum region (data) gap was set to 0 and the maximum cluster gap was set to 300.
This analysis was on each chromosome was performed with the following call to analyzeChr()
(shown for one chromosome only):
## analyzeChr(chrnum = "21", coverageInfo = genomeData, models = models,
## cutoffFstat = 1, cutoffType = "manual", seeds = 20140330,
## groupInfo = group, mc.cores = 1, writeOutput = TRUE, returnOutput = FALSE)
The results were merged using the following call to mergeResults()
:
## mergeResults(chrs = "chr21", prefix = "report", genomicState = genomicState$fullGenome)
This report was generated in path /Users/lcollado/Dropbox/JHSPH/Code/regionReport/vignettes/realVignettes using the following call to derfinderReport()
:
## derfinderReport(prefix = "report", outdir = "html", browse = FALSE,
## nBestRegions = 15, makeBestClusters = TRUE, fullCov = list(`21` = genomeDataRaw$coverage),
## optionsStats = optionsStats)
Date the report was generated.
## [1] "2015-03-13 01:18:16 EDT"
Wallclock time spent generating the report.
## Time difference of 40.57 secs
R
session information.
## setting value
## version R Under development (unstable) (2014-11-01 r66923)
## system x86_64, darwin10.8.0
## ui X11
## language (EN)
## collate en_US.UTF-8
## tz America/New_York
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## pkgmaker 0.22 2014-05-14 CRAN (R 3.2.0)
## plyr 1.8.1 2014-02-26 CRAN (R 3.2.0)
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## Rcpp 0.11.3 2014-09-29 CRAN (R 3.2.0)
## RCurl 1.95.4.3 2014-07-29 CRAN (R 3.2.0)
## RefManageR 0.8.40 2014-10-29 CRAN (R 3.2.0)
## regionReport * 1.1.7 2015-02-28 Bioconductor
## registry 0.2 2012-01-24 CRAN (R 3.2.0)
## reshape 0.8.5 2014-04-23 CRAN (R 3.2.0)
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## Rsamtools 1.19.43 2015-03-12 Bioconductor
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## scales 0.2.4 2014-04-22 CRAN (R 3.2.0)
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This report was created with regionReport
(Collado-Torres, Jaffe, and Leek, 2015) using knitrBootstrap
(Hester, 2014) to format the html while knitr
(Xie, 2014) and rmarkdown
(Allaire, McPherson, Xie, Wickham, et al., 2014) were running behind the scenes.
Citations made with knitcitations
(Boettiger, 2015).
[1] J. Allaire, J. McPherson, Y. Xie, H. Wickham, et al. rmarkdown: Dynamic Documents for R. R package version 0.3.3. 2014. URL: http://CRAN.R-project.org/package=rmarkdown.
[2] C. Boettiger. knitcitations: Citations for knitr markdown files. R package version 1.0.4. 2015. URL: https://github.com/cboettig/knitcitations.
[3] L. Collado-Torres, A. C. Frazee, M. I. Love, R. A. Irizarry, et al. “derfinder: Software for annotation-agnostic RNA-seq differential expression analysis”. In: bioRxiv (2015). DOI: 10.1101/015370. URL: http://www.biorxiv.org/content/early/2015/02/19/015370.abstract.
[4] L. Collado-Torres, A. E. Jaffe and J. T. Leek. regionReport: Generate HTML reports for exploring a set of regions. https://github.com/lcolladotor/regionReport - R package version 1.1.7. 2015. URL: http://www.bioconductor.org/packages/release/bioc/html/regionReport.html.
[5] J. Hester. knitrBootstrap: Knitr Bootstrap framework. R package version 1.0.0. 2014. URL: https://github.com/jimhester/.
[6] H. Wickham. ggplot2: elegant graphics for data analysis. Springer New York, 2009. ISBN: 978-0-387-98140-6. URL: http://had.co.nz/ggplot2/book.
[7] Y. Xie. “knitr: A Comprehensive Tool for Reproducible Research in R”. In: Implementing Reproducible Computational Research. Ed. by V. Stodden, F. Leisch and R. D. Peng. ISBN 978-1466561595. Chapman and Hall/CRC, 2014. URL: http://www.crcpress.com/product/isbn/9781466561595.
[8] T. Yin, D. Cook and M. Lawrence. “ggbio: an R package for extending the grammar of graphics for genomic data”. In: Genome Biology 13.8 (2012), p. R77.