Investigate Peak to Gene Assignment

library(tidyverse)

── Attaching packages ───────────────────────────────────────────────────────── tidyverse 1.2.1 ──

✔ ggplot2 3.0.0     ✔ purrr   0.2.5
✔ tibble  1.4.2     ✔ dplyr   0.7.6
✔ tidyr   0.8.1     ✔ stringr 1.3.1
✔ readr   1.1.1     ✔ forcats 0.3.0

── Conflicts ──────────────────────────────────────────────────────────── tidyverse_conflicts() ──
✖ dplyr::filter() masks stats::filter()
✖ dplyr::lag()    masks stats::lag()

library(workflowr)

This is workflowr version 1.1.1
Run ?workflowr for help getting started

library(cowplot)

Attaching package: 'cowplot'

The following object is masked from 'package:ggplot2':

    ggsave

library(tximport)

#python  

CovnamedPeaks=open("/project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed.bed", "r")
GeneNamedPeaks=open("/project2/gilad/briana/threeprimeseq/data/UnderstandPeaksQC/PeaksNamedWithGeneAssignment.bed", "w")

for ln in CovnamedPeaks:
  chrom, start, end, num, cov, strand, transcript = ln.split()
  gene=transcript.split("-")[1]
  GeneNamedPeaks.write("%s\t%s\t%s\t%s\n"%(chrom,start,end,gene))

GeneNamedPeaks.close()

Filter out intergenic peaks

As a first pass I want to filter out the peaks that are outside a gene body. While this may not be perfect it will help alot with the intergenic noise.

I need to overlap the named peaks with /project2/gilad/briana/genome_anotation_data/ncbiRefSeq.mRNA.named.bed and only keep the matches. I can use bedtools intersect.

Rename the peaks according to convention to run an intesect.

RenamePeaks4Intersect.py

#python  
CovnamedPeaks=open("/project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed.bed", "r")
GeneNamedPeaks=open("/project2/gilad/briana/threeprimeseq/data/UnderstandPeaksQC/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_RENAMED.bed", "w")  

for ln in CovnamedPeaks:
  chrom, start, end, num, cov, strand, transcript = ln.split()
  gene=transcript.split("-")[1]
  start=int(start)
  end=int(end)
  GeneNamedPeaks.write("%s\t%d\t%d\t%s-%s\t%s\t%s\n"%(chrom,start,end,num,gene,cov,strand))

GeneNamedPeaks.close()

Remove CHR from the refseq annpotation:

sed 's/^chr//' /project2/gilad/briana/genome_anotation_data/ncbiRefSeq.mRNA.named.bed > /project2/gilad/briana/genome_anotation_data/ncbiRefSeq.mRNA.named_noCHR.bed

Filter4GenicPeaks.sh

#!/bin/bash


#SBATCH --job-name=Filter4GenicPeaks
#SBATCH --account=pi-yangili1
#SBATCH --time=24:00:00
#SBATCH --output=Filter4GenicPeaks.out
#SBATCH --error=Filter4GenicPeaks.err
#SBATCH --partition=broadwl
#SBATCH --mem=12G
#SBATCH --mail-type=END

module load Anaconda3
source activate three-prime-env


bedtools intersect -wa -s -a /project2/gilad/briana/threeprimeseq/data/UnderstandPeaksQC/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_RENAMED.bed -b /project2/gilad/briana/genome_anotation_data/ncbiRefSeq.mRNA.named_noCHR.bed > /project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodies.bed

This is printing them multiple times.

uniq /project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodies.bed > /project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodiesUNIQ.bed

Now I need to make this an SAF to run feature counts.

bed2saf_peaksInGenicReg.py

from misc_helper import *

fout = open("/project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodiesUNIQ.SAF",'w')
fout.write("GeneID\tChr\tStart\tEnd\tStrand\n")
for ln in open("/project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodiesUNIQ.bed"):
    chrom, start, end, name, score, strand = ln.split()
    namenum=name.split("-")[0]
    name_i=int(namenum)
    start_i=int(start)
    end_i=int(end)
    gene_only=name.split("-")[1]
    ID = "peak%d:%s:%d:%d:%s:%s"%(name_i, chrom, start_i, end_i, strand, gene_only)
    fout.write("%s\t%s\t%d\t%d\t%s\n"%(ID, chrom, start_i, end_i, strand))
fout.close()

Run Feature Counts
PeaksinGenicRegion_fc_TN.sh

#!/bin/bash

#SBATCH --job-name=PeaksinGenicRegion_fc_TN
#SBATCH --account=pi-yangili1
#SBATCH --time=24:00:00
#SBATCH --output=PeaksinGenicRegion_fc_TN.out
#SBATCH --error=PeaksinGenicRegion_fc_TN.err
#SBATCH --partition=broadwl
#SBATCH --mem=12G
#SBATCH --mail-type=END

module load Anaconda3
source activate three-prime-env

featureCounts -O -a /project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodiesUNIQ.SAF -F SAF -o /project2/gilad/briana/threeprimeseq/data/PeakInGenecRegion_cov/filtered_APApeaks_merged_allchrom_refseqGenes.Transcript_sm_quant_Genic.Total.fc /project2/gilad/briana/threeprimeseq/data/sort/*-T-*-sort.bam -s 2

featureCounts -O -a /project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodiesUNIQ.SAF -F SAF -o /project2/gilad/briana/threeprimeseq/data/PeakInGenecRegion_cov/filtered_APApeaks_merged_allchrom_refseqGenes.Transcript_sm_quant_Genic.Nuclear.fc /project2/gilad/briana/threeprimeseq/data/sort/*-N-*-sort.bam -s 2

Lastly I will need to fix the headers.

fix_head_fc_genicPeak_tot.py

infile= open("/project2/gilad/briana/threeprimeseq/data/PeakInGenecRegion_cov/filtered_APApeaks_merged_allchrom_refseqGenes.Transcript_sm_quant_Genic.Total.fc", "r")
fout = open("/project2/gilad/briana/threeprimeseq/data/PeakInGenecRegion_cov/filtered_APApeaks_merged_allchrom_refseqGenes.Transcript_sm_quant_Genic.Total_fixed.fc",'w')
for line, i in enumerate(infile):
    if line == 1:
        i_list=i.split()
        libraries=i_list[:6]
        for sample in i_list[6:]:
            full = sample.split("/")[7]
            samp= full.split("-")[2:4]
            lim="_"
            samp_st=lim.join(samp)
            libraries.append(samp_st)
        first_line= "\t".join(libraries)
        fout.write(first_line + '\n')
    else :
        fout.write(i)
fout.close()

fix_head_fc_genicPeak_nuc.py

infile= open("/project2/gilad/briana/threeprimeseq/data/PeakInGenecRegion_cov/filtered_APApeaks_merged_allchrom_refseqGenes.Transcript_sm_quant_Genic.Nuclear.fc", "r")
fout = open("/project2/gilad/briana/threeprimeseq/data/PeakInGenecRegion_cov/filtered_APApeaks_merged_allchrom_refseqGenes.Transcript_sm_quant_Genic.Nuclear_fixed.fc",'w')
for line, i in enumerate(infile):
    if line == 1:
        i_list=i.split()
        libraries=i_list[:6]
        for sample in i_list[6:]:
            full = sample.split("/")[7]
            samp= full.split("-")[2:4]
            lim="_"
            samp_st=lim.join(samp)
            libraries.append(samp_st)
        first_line= "\t".join(libraries)
        fout.write(first_line + '\n')
    else :
        fout.write(i)
fout.close()

Pull these into R and look at the correlation between the sum of the peaks by gene and the transcripts counts from RNA seq.

TPM counts from Kalisto

tx2gene=read.table("../data/RNAkalisto/ncbiRefSeq.txn2gene.txt" ,header= F, sep="\t", stringsAsFactors = F)

txi.kallisto.tsv <- tximport("../data/RNAkalisto/abundance.tsv", type = "kallisto", tx2gene = tx2gene,countsFromAbundance="lengthScaledTPM" )

Note: importing `abundance.h5` is typically faster than `abundance.tsv`

reading in files with read_tsv

1 
removing duplicated transcript rows from tx2gene
transcripts missing from tx2gene: 99
summarizing abundance
summarizing counts
summarizing length

In previous analysis I did not account for gene length. Here I am going to standardize by length because I am taking a sum over a gene body.

Import gene lengths:

geneLengthNames=c("CHR", "start", "end", "gene", "score", "strand")
geneLengths=read.table("../data/UnderstandPeaksQC/refseq.ProteinCoding.bed", header=F, stringsAsFactors = F, col.names = geneLengthNames) %>% mutate(length=end-start) %>% select(gene, length)

Look at the correlation with the total:

I am using the sum of the counts in a gene divided by how many million reads mapped. I am also filtering out peaks with less than 10 reads in this individual.

total_Cov_18486=read.table("../data/UnderstandPeaksQC/filtered_APApeaks_merged_allchrom_refseqGenes.Transcript_sm_quant_Genic.Total_fixed.fc", header=T, stringsAsFactors = F)[,1:7] %>% separate(Geneid, into=c("peak", "chr", "start", "end", "strand", "gene"), sep=":") %>% select(gene, X18486_T) %>% filter(X18486_T>0) %>%  group_by(gene) %>% summarize(GeneSum=sum(X18486_T)) %>% mutate(GeneSumNorm=GeneSum/10.8) %>% inner_join(geneLengths, by="gene") %>% mutate(GeneSumSt=GeneSum/length)

Join the data frames.

TXN_abund=as.data.frame(txi.kallisto.tsv$abundance) %>% rownames_to_column(var="gene")
colnames(TXN_abund)=c("gene", "TPM")

TXN_NormGene=TXN_abund %>% inner_join(total_Cov_18486,by="gene")

Remove rows with 0 counts and Plot:

TXN_NormGene=TXN_NormGene %>% filter(TPM>0) %>% filter(GeneSumSt>0)
corr_18486Tot=ggplot(TXN_NormGene, aes(x=log10(TPM), y= log10(GeneSumSt))) + geom_point() + labs(title="Total", x="log10 RNA seq TPM", y="log10 Peak count sum per gene")+ geom_smooth(aes(x=log10(TPM),y=log10(GeneSumSt)),method = "lm") + annotate("text",x=3, y=5,label="R2=.48") +geom_density2d(na.rm = TRUE, size = 1, colour = 'red') 

#+ geom_text(aes(label=gene),hjust=0, vjust=0)
       
corr_18486Tot       

summary(lm(log10(TPM)~log10(GeneSumSt),TXN_NormGene)) 

Call:
lm(formula = log10(TPM) ~ log10(GeneSumSt), data = TXN_NormGene)

Residuals:
    Min      1Q  Median      3Q     Max 
-3.5894 -0.2556  0.0856  0.3676  2.3387 

Coefficients:
                 Estimate Std. Error t value Pr(>|t|)    
(Intercept)      2.407969   0.013563   177.5   <2e-16 ***
log10(GeneSumSt) 0.612175   0.005812   105.3   <2e-16 ***
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Residual standard error: 0.598 on 12053 degrees of freedom
Multiple R-squared:  0.4793,    Adjusted R-squared:  0.4793 
F-statistic: 1.11e+04 on 1 and 12053 DF,  p-value: < 2.2e-16

Try this with nuclear

nuclear_Cov_18486=read.table("../data/UnderstandPeaksQC/filtered_APApeaks_merged_allchrom_refseqGenes.Transcript_sm_quant_Genic.Nuclear_fixed.fc", header=T, stringsAsFactors = F)[,1:7] %>% separate(Geneid, into=c("peak", "chr", "start", "end", "strand", "gene"), sep=":") %>% select(gene, X18486_N) %>% filter(X18486_N>10) %>%  group_by(gene) %>% summarize(GeneSum=sum(X18486_N)) %>% mutate(GeneSumNorm=GeneSum/11.4) %>% inner_join(geneLengths, by="gene") %>% mutate(GeneSumSt=GeneSum/length)

Join the data frames.

TXN_NormGene_nuc=TXN_abund %>% inner_join(nuclear_Cov_18486,by="gene")

Remove rows with 0 counts and Plot:

TXN_NormGene_nuc=TXN_NormGene_nuc %>% filter(TPM>0) %>% filter(GeneSumSt>0)
corr_18486Nuc=ggplot(TXN_NormGene_nuc, aes(x=log10(TPM), y= log10(GeneSumSt))) + geom_point() + labs(title="Nuclear", x="log10 RNA seq TPM", y="log10 Peak count sum per gene")+ geom_smooth(aes(x=log10(TPM),y=log10(GeneSumSt)),method = "lm") + annotate("text",x=3, y=5,label="R2=.37") + geom_density2d(na.rm = TRUE, size = 1, colour = 'red') 

#+ geom_text(aes(label=gene),hjust=0, vjust=0)
       
corr_18486Nuc    

summary(lm(log10(TPM)~log10(GeneSumSt),TXN_NormGene_nuc)) 

Call:
lm(formula = log10(TPM) ~ log10(GeneSumSt), data = TXN_NormGene_nuc)

Residuals:
    Min      1Q  Median      3Q     Max 
-3.7211 -0.2691  0.0733  0.3789  2.5253 

Coefficients:
                 Estimate Std. Error t value Pr(>|t|)    
(Intercept)      2.451150   0.017039  143.85   <2e-16 ***
log10(GeneSumSt) 0.654587   0.008008   81.74   <2e-16 ***
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Residual standard error: 0.6324 on 11567 degrees of freedom
Multiple R-squared:  0.3661,    Adjusted R-squared:  0.3661 
F-statistic:  6681 on 1 and 11567 DF,  p-value: < 2.2e-16

This just said it had to be in a gene body not the specific gene body. This could be a problem still. For example in the SSPO locus chr7:149,521,993-149,543,749. Here the peaks are closer to the end of the SSPO but are in the gene body of the next gene downstream.

Histones dont have a polyA tail- the HIST1H4C peak is most likely misprimming (chr6:26,102,306-26,110,443)

Filter out overlapping genes:

Count overlaps in origial file:
bedtools merge -i IN.bed -c 1 -o count > counted

countGeneOverlap.sh

#!/bin/bash

#SBATCH --job-name=countGeneOverlap
#SBATCH --account=pi-yangili1
#SBATCH --time=24:00:00
#SBATCH --output=countGeneOverlap.out
#SBATCH --error=countGeneOverlap.err
#SBATCH --partition=broadwl
#SBATCH --mem=12G
#SBATCH --mail-type=END

module load Anaconda3
source activate three-prime-env


bedtools merge -i /project2/gilad/briana/genome_anotation_data/refseq.ProteinCoding.noCHR.bed -c 1 -o count > /project2/gilad/briana/genome_anotation_data/refseq.ProteinCoding.countGeneOverlap.bed  

Filter out these rows: awk '/\t1$/{print}' counted > filtered

awk '/\t1$/{print}' /project2/gilad/briana/genome_anotation_data/refseq.ProteinCoding.countGeneOverlap.bed > /project2/gilad/briana/genome_anotation_data/refseq.ProteinCoding.countGeneOverlap.filtered.bed

Intersect with original input to only keep the ones in both sets.
bedtools intersect -a IN.bed -b filtered -wa > OUT.bed

findGeneswithoutOverlap.sh

#!/bin/bash

#SBATCH --job-name=findGeneswithoutOverlap.sh
#SBATCH --account=pi-yangili1
#SBATCH --time=24:00:00
#SBATCH --output=findGeneswithoutOverlap.out
#SBATCH --error=findGeneswithoutOverlap.err
#SBATCH --partition=broadwl
#SBATCH --mem=12G
#SBATCH --mail-type=END

module load Anaconda3
source activate three-prime-env

bedtools intersect -a /project2/gilad/briana/genome_anotation_data/refseq.ProteinCoding.noCHR.bed -b /project2/gilad/briana/genome_anotation_data/refseq.ProteinCoding.countGeneOverlap.filtered.bed -wa > /project2/gilad/briana/genome_anotation_data/refseq.ProteinCoding.NonOverlapGenes.bed 

Finally overlap with the mRNA file to only keep the transcripts in these genes. This may be easiest in python /project2/gilad/briana/genome_anotation_data/ncbiRefSeq.mRNA.named_noCHR.bed

subsetmRNAforNonOverlapGenes.py

geneFile=open("/project2/gilad/briana/genome_anotation_data/refseq.ProteinCoding.NonOverlapGenes.bed", "r") 

mRNAFile=open("/project2/gilad/briana/genome_anotation_data/ncbiRefSeq.mRNA.named_noCHR.bed", "r")

outFile=open("/project2/gilad/briana/genome_anotation_data/ncbiRefSeq.mRNA.named_noCHR_NoneOverlapingGenes.bed", "w")  

#make list of non overlapping genes  

keep=[]
for ln in geneFile:
  keep.append(ln.split()[3])

for ln in mRNAFile: 
  if ln.split()[4] in keep:
    outFile.write(ln)
outFile.close()

Filter peaks on this resutls

Filter4GenicPeaks_noOverlap.sh

#!/bin/bash


#SBATCH --job-name=Filter4GenicPeaks
#SBATCH --account=pi-yangili1
#SBATCH --time=24:00:00
#SBATCH --output=Filter4GenicPeaks.out
#SBATCH --error=Filter4GenicPeaks.err
#SBATCH --partition=broadwl
#SBATCH --mem=12G
#SBATCH --mail-type=END

module load Anaconda3
source activate three-prime-env


bedtools intersect -wa -s -a /project2/gilad/briana/threeprimeseq/data/UnderstandPeaksQC/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_RENAMED.bed -b /project2/gilad/briana/genome_anotation_data/ncbiRefSeq.mRNA.named_noCHR_NoneOverlapingGenes.bed> /project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodies_noGeneOverlap.bed

This is printing them multiple times.

uniq /project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodies_noGeneOverlap.bed > /project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodies_noGeneOverlap_UNIQ.bed

Make this an SAF to run FC

bed2saf_peaksInGenicReg_noOVERLAP.py

from misc_helper import *

fout = open("/project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodies_noGeneOverlap_UNIQ.SAF",'w')
fout.write("GeneID\tChr\tStart\tEnd\tStrand\n")
for ln in open("/project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodies_noGeneOverlap_UNIQ.bed"):
    chrom, start, end, name, score, strand = ln.split()
    namenum=name.split("-")[0]
    name_i=int(namenum)
    start_i=int(start)
    end_i=int(end)
    gene_only=name.split("-")[1]
    ID = "peak%d:%s:%d:%d:%s:%s"%(name_i, chrom, start_i, end_i, strand, gene_only)
    fout.write("%s\t%s\t%d\t%d\t%s\n"%(ID, chrom, start_i, end_i, strand))
fout.close()

Run Feature Counts
PeaksinGenicRegion_NoneOverlapGenes_fc_TN.sh

#!/bin/bash

#SBATCH --job-name=PeaksinGenicRegion_NoneOverlapGenes_fc_TN
#SBATCH --account=pi-yangili1
#SBATCH --time=24:00:00
#SBATCH --output=PeaksinGenicRegion_NoneOverlapGenes_fc_TN.out
#SBATCH --error=PeaksinGenicRegion_NoneOverlapGenes_fc_TN.err
#SBATCH --partition=broadwl
#SBATCH --mem=12G
#SBATCH --mail-type=END

module load Anaconda3
source activate three-prime-env

featureCounts -O -a /project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodies_noGeneOverlap_UNIQ.SAF -F SAF -o /project2/gilad/briana/threeprimeseq/data/PeakInGenecRegionNoOverlap_cov/filtered_APApeaks_merged_allchrom_refseqGenes.Transcript_sm_quant_GenicNoOverlap.Total.fc /project2/gilad/briana/threeprimeseq/data/sort/*-T-*-sort.bam -s 2

featureCounts -O -a /project2/gilad/briana/threeprimeseq/data/mergedPeaks_comb_inGeneBody/filtered_APApeaks_merged_allchrom_refseqTrans.noties_sm.fixed_inGeneBodies_noGeneOverlap_UNIQ.SAF -F SAF -o /project2/gilad/briana/threeprimeseq/data/PeakInGenecRegionNoOverlap_cov/filtered_APApeaks_merged_allchrom_refseqGenes.Transcript_sm_quant_GenicNoOverlap.Nuclear.fc /project2/gilad/briana/threeprimeseq/data/sort/*-N-*-sort.bam -s 2

Session information

sessionInfo()

R version 3.5.1 (2018-07-02)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS  10.14.1

Matrix products: default
BLAS: /Library/Frameworks/R.framework/Versions/3.5/Resources/lib/libRblas.0.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/3.5/Resources/lib/libRlapack.dylib

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
 [1] bindrcpp_0.2.2  tximport_1.8.0  cowplot_0.9.3   workflowr_1.1.1
 [5] forcats_0.3.0   stringr_1.3.1   dplyr_0.7.6     purrr_0.2.5    
 [9] readr_1.1.1     tidyr_0.8.1     tibble_1.4.2    ggplot2_3.0.0  
[13] tidyverse_1.2.1

loaded via a namespace (and not attached):
 [1] tidyselect_0.2.4  haven_1.1.2       lattice_0.20-35  
 [4] colorspace_1.3-2  htmltools_0.3.6   yaml_2.2.0       
 [7] rlang_0.2.2       R.oo_1.22.0       pillar_1.3.0     
[10] glue_1.3.0        withr_2.1.2       R.utils_2.7.0    
[13] modelr_0.1.2      readxl_1.1.0      bindr_0.1.1      
[16] plyr_1.8.4        munsell_0.5.0     gtable_0.2.0     
[19] cellranger_1.1.0  rvest_0.3.2       R.methodsS3_1.7.1
[22] evaluate_0.11     labeling_0.3      knitr_1.20       
[25] broom_0.5.0       Rcpp_0.12.19      scales_1.0.0     
[28] backports_1.1.2   jsonlite_1.5      hms_0.4.2        
[31] digest_0.6.17     stringi_1.2.4     grid_3.5.1       
[34] rprojroot_1.3-2   cli_1.0.1         tools_3.5.1      
[37] magrittr_1.5      lazyeval_0.2.1    crayon_1.3.4     
[40] whisker_0.3-2     pkgconfig_2.0.2   MASS_7.3-50      
[43] xml2_1.2.0        lubridate_1.7.4   assertthat_0.2.0 
[46] rmarkdown_1.10    httr_1.3.1        rstudioapi_0.8   
[49] R6_2.3.0          nlme_3.1-137      git2r_0.23.0     
[52] compiler_3.5.1