def spatial_heatmap(array, path, title=None, color="Greens", figformat="png"):
"""Taking channel information and creating post run channel activity plots."""
logging.info(
"Nanoplotter: Creating heatmap of reads per channel using {} reads.".
format(array.size))
activity_map = Plot(path=path + "." + figformat,
title="Number of reads generated per channel")
layout = make_layout(maxval=np.amax(array))
valueCounts = pd.value_counts(pd.Series(array))
for entry in valueCounts.keys():
layout.template[np.where(
layout.structure == entry)] = valueCounts[entry]
plt.figure()
ax = sns.heatmap(data=pd.DataFrame(layout.template,
index=layout.yticks,
columns=layout.xticks),
xticklabels="auto",
yticklabels="auto",
square=True,
cbar_kws={"orientation": "horizontal"},
cmap=color,
linewidths=0.20)
ax.set_title(title or activity_map.title)
activity_map.fig = ax.get_figure()
activity_map.save(format=figformat)
plt.close("all")
return [activity_map]
def length_over_time(dfs, path, figformat, title, log_length=False, plot_settings={}):
time_length = Plot(path=path + "TimeLengthViolinPlot." + figformat,
title="Violin plot of read lengths over time")
sns.set(style="white", **plot_settings)
if log_length:
length_column = "log_lengths"
else:
length_column = "lengths"
if "length_filter" in dfs: # produced by NanoPlot filtering of too long reads
temp_dfs = dfs[dfs["length_filter"]]
else:
temp_dfs = dfs
ax = sns.violinplot(x="timebin",
y=length_column,
data=temp_dfs,
inner=None,
cut=0,
linewidth=0)
ax.set(xlabel='Interval (hours)',
ylabel="Read length",
title=title or time_length.title)
if log_length:
ticks = [10**i for i in range(10) if not 10**i > 10 * np.amax(dfs["lengths"])]
ax.set(yticks=np.log10(ticks),
yticklabels=ticks)
plt.xticks(rotation=45, ha='center', fontsize=8)
time_length.fig = ax.get_figure()
time_length.save(format=figformat)
plt.close("all")
return time_length
def n50_barplot(df, figformat, path, title=None, palette=None):
n50_bar = Plot(path=path + "NanoComp_N50." + figformat,
title="Comparing read length N50")
if "aligned_lengths" in df:
n50s = [
get_N50(np.sort(df.loc[df["dataset"] == d, "aligned_lengths"]))
for d in df["dataset"].unique()
]
ylabel = 'Total gigabase aligned'
else:
n50s = [
get_N50(np.sort(df.loc[df["dataset"] == d, "lengths"]))
for d in df["dataset"].unique()
]
ylabel = 'Sequenced read length N50'
ax = sns.barplot(x=list(df["dataset"].unique()),
y=n50s,
palette=palette,
order=df["dataset"].unique())
ax.set(ylabel=ylabel, title=title or n50_bar.title)
plt.xticks(rotation=30, ha='center')
n50_bar.fig = ax.get_figure()
n50_bar.save(format=figformat)
plt.close("all")
return [n50_bar]
def cumulative_yield(dfs, path, figformat, title, color):
cum_yield_gb = Plot(path=path + "CumulativeYieldPlot_Gigabases." +
figformat,
title="Cumulative yield")
s = dfs.loc[:, "lengths"].cumsum().resample('1T').max() / 1e9
ax = sns.regplot(x=s.index.total_seconds() / 3600,
y=s,
x_ci=None,
fit_reg=False,
color=color,
scatter_kws={"s": 3})
ax.set(xlabel='Run time (hours)',
ylabel='Cumulative yield in gigabase',
title=title or cum_yield_gb.title)
cum_yield_gb.fig = ax.get_figure()
cum_yield_gb.save(format=figformat)
plt.close("all")
cum_yield_reads = Plot(path=path + "CumulativeYieldPlot_NumberOfReads." +
figformat,
title="Cumulative yield")
s = dfs.loc[:, "lengths"].resample('10T').count().cumsum()
ax = sns.regplot(x=s.index.total_seconds() / 3600,
y=s,
x_ci=None,
fit_reg=False,
color=color,
scatter_kws={"s": 3})
ax.set(xlabel='Run time (hours)',
ylabel='Cumulative yield in number of reads',
title=title or cum_yield_reads.title)
cum_yield_reads.fig = ax.get_figure()
cum_yield_reads.save(format=figformat)
plt.close("all")
return [cum_yield_gb, cum_yield_reads]
def overlay_histogram_phred(df, path, settings, palette=None):
"""
Reads with a perfect alignment and thus a percentIdentity of 100
get a phred score of Inf
Which is not cool
So these are set to 60, a very high phred score
"""
df["phredIdentity"] = -10 * np.log10(1 - (df["percentIdentity"] / 100))
df["phredIdentity"][np.isinf(df["phredIdentity"])] = 60
if palette is None:
palette = plotly.colors.DEFAULT_PLOTLY_COLORS * 5
hist_phred = Plot(path=path + "NanoComp_OverlayHistogram_PhredScore.html",
title="Histogram of Phred scores")
hist_phred.html, hist_phred.fig = plot_overlay_histogram(df,
palette,
"phredIdentity",
hist_phred.title,
bins=20,
density=True)
hist_phred.save(settings)
return hist_phred
def output_barplot(df, figformat, path, title=None, palette=None):
"""Create barplots based on number of reads and total sum of nucleotides sequenced."""
logging.info(
"NanoComp: Creating barplots for number of reads and total throughput."
)
read_count = Plot(path=path + "NanoComp_number_of_reads." + figformat,
title="Comparing number of reads")
ax = sns.countplot(x="dataset", data=df, palette=palette)
ax.set(ylabel='Number of reads', title=title or read_count.title)
plt.xticks(rotation=30, ha='center')
read_count.fig = ax.get_figure()
read_count.save(format=figformat)
plt.close("all")
throughput_bases = Plot(path=path + "NanoComp_total_throughput." +
figformat,
title="Comparing throughput in gigabases")
if "aligned_lengths" in df:
throughput = df.groupby('dataset')['aligned_lengths'].sum()
ylabel = 'Total gigabase aligned'
else:
throughput = df.groupby('dataset')['lengths'].sum()
ylabel = 'Total gigabase sequenced'
ax = sns.barplot(x=list(throughput.index),
y=throughput / 1e9,
palette=palette,
order=df["dataset"].unique())
ax.set(ylabel=ylabel, title=title or throughput_bases.title)
plt.xticks(rotation=30, ha='center')
throughput_bases.fig = ax.get_figure()
throughput_bases.save(format=figformat)
plt.close("all")
return read_count, throughput_bases
def dynamic_histogram(array, name, path, title=None, color="#4CB391"):
"""
Use plotly to a histogram
Return html code, but also save as png
"""
dynhist = Plot(path=path + "Dynamic_Histogram_{}.html".format(name.replace(' ', '_')),
title=title or "Dynamic histogram of {}".format(name))
dynhist.html, dynhist.fig = plotly_histogram(array=array.sample(min(len(array), 10000)),
color=color,
title=dynhist.title)
dynhist.save()
return dynhist
def overlay_histogram_identity(df, path, settings, palette=None):
if palette is None:
palette = plotly.colors.DEFAULT_PLOTLY_COLORS * 5
hist_pid = Plot(path=path + "NanoComp_OverlayHistogram_Identity.html",
title="Histogram of percent reference identity")
hist_pid.html, hist_pid.fig = plot_overlay_histogram(df,
palette,
"percentIdentity",
hist_pid.title,
density=True)
hist_pid.save(settings)
return hist_pid
def dynamic_histogram(array, name, path, figformat, title=None, color="#4CB391"):
"""
Use plotly to a histogram
Return html code, but also save as png
"""
dynhist = Plot(
path=path + f"Dynamic_Histogram_{name[0].lower() + name[1:].replace(' ', '_')}.html",
title="Dynamic histogram of {}".format(name[0].lower() + name[1:]))
ylabel = "Number of reads" if len(array) <= 10000 else "Downsampled number of reads"
dynhist.html, dynhist.fig = plotly_histogram(array=array.sample(min(len(array), 10000)),
color=color,
title=title or dynhist.title,
xlabel=name,
ylabel=ylabel)
dynhist.save(figformat)
return dynhist
def quality_over_time(dfs, path, figformat, title, plot_settings={}):
time_qual = Plot(path=path + "TimeQualityViolinPlot." + figformat,
title="Violin plot of quality over time")
sns.set(style="white", **plot_settings)
ax = sns.violinplot(x="timebin",
y="quals",
data=dfs,
inner=None,
cut=0,
linewidth=0)
ax.set(xlabel='Interval (hours)',
ylabel="Basecall quality",
title=title or time_qual.title)
plt.xticks(rotation=45, ha='center', fontsize=8)
time_qual.fig = ax.get_figure()
time_qual.save(format=figformat)
plt.close("all")
return time_qual
def overlay_histogram_phred(df, path, figformat, palette=None):
df["phredIdentity"] = -10 * np.log10(1 - (df["percentIdentity"] / 100))
if palette is None:
palette = plotly.colors.DEFAULT_PLOTLY_COLORS * 5
hist_phred = Plot(path=path + "NanoComp_OverlayHistogram_PhredScore.html",
title="Histogram of Phred scores")
hist_phred.html, hist_phred.fig = plot_overlay_histogram(df,
palette,
"phredIdentity",
hist_phred.title,
bins=20,
density=True)
hist_phred.save(figformat=figformat)
return hist_phred
def sequencing_speed_over_time(dfs, path, figformat, title, plot_settings={}):
time_duration = Plot(path=path + "TimeSequencingSpeed_ViolinPlot." + figformat,
title="Violin plot of sequencing speed over time")
sns.set(style="white", **plot_settings)
if "timebin" not in dfs:
dfs['timebin'] = add_time_bins(dfs)
ax = sns.violinplot(x=dfs["timebin"],
y=dfs["lengths"] / dfs["duration"],
inner=None,
cut=0,
linewidth=0)
ax.set(xlabel='Interval (hours)',
ylabel="Sequencing speed (nucleotides/second)",
title=title or time_duration.title)
plt.xticks(rotation=45, ha='center', fontsize=8)
time_duration.fig = ax.get_figure()
time_duration.save(format=figformat)
plt.close("all")
return time_duration
def length_over_time(dfs,
path,
title,
settings,
log_length=False,
color="#4CB391"):
if log_length:
time_length = Plot(path=path + "TimeLogLengthViolinPlot.html",
title="Violin plot of log read lengths over time")
else:
time_length = Plot(path=path + "TimeLengthViolinPlot.html",
title="Violin plot of read lengths over time")
length_column = "log_lengths" if log_length else "lengths"
if "length_filter" in dfs: # produced by NanoPlot filtering of too long reads
temp_dfs = dfs[dfs["length_filter"]]
else:
temp_dfs = dfs
fig = go.Figure()
fig.add_trace(
go.Violin(y=temp_dfs[length_column],
x=temp_dfs["timebin"],
points=False,
spanmode="hard",
line_color='black',
line_width=1.5,
fillcolor=color,
opacity=0.8))
fig.update_layout(xaxis_title='Interval (hours)',
yaxis_title='Read length',
title=title or time_length.title,
title_x=0.5)
if log_length:
ticks = [
10**i for i in range(10)
if not 10**i > 10 * np.amax(dfs["lengths"])
]
fig.update_layout(yaxis=dict(
tickmode='array', tickvals=np.log10(ticks), ticktext=ticks))
fig.update_yaxes(tickangle=45)
time_length.fig = fig
time_length.html = time_length.fig.to_html(full_html=False,
include_plotlyjs='cdn')
time_length.save(settings)
return time_length
def compare_sequencing_speed(df, figformat, path, title=None, palette=None):
logging.info(
"Nanoplotter: creating comparison of sequencing speed over time.")
seq_speed = Plot(path=path + "NanoComp_sequencing_speed_over_time." +
figformat,
title="Sequencing speed over time")
dfs = check_valid_time_and_sort(df, "start_time")
dfs['timebin'] = add_time_bins(dfs)
ax = sns.violinplot(x=dfs["timebin"],
y=dfs["lengths"] / dfs["duration"],
hue=dfs["dataset"],
inner=None,
cut=0,
linewidth=0)
ax.set(xlabel='Interval (hours)',
ylabel="Sequencing speed (nucleotides/second)")
plt.xticks(rotation=45, ha='center', fontsize=8)
seq_speed.fig = ax.get_figure()
seq_speed.save(format=figformat)
plt.close("all")
return [seq_speed]
def sequencing_speed_over_time(dfs, path, title, settings, color="#4CB391"):
time_duration = Plot(path=path + "TimeSequencingSpeed_ViolinPlot.html",
title="Violin plot of sequencing speed over time")
mask = dfs['duration'] != 0
fig = go.Figure()
fig.add_trace(
go.Violin(x=dfs.loc[mask, "timebin"],
y=dfs.loc[mask, "lengths"] / dfs.loc[mask, "duration"],
points=False,
spanmode="hard",
line_color='black',
line_width=1.5,
fillcolor=color,
opacity=0.8))
fig.update_layout(xaxis_title='Interval (hours)',
yaxis_title='Sequencing speed (nucleotides/second)',
title=title or time_duration.title,
title_x=0.5)
fig.update_xaxes(tickangle=45)
time_duration.fig = fig
time_duration.html = time_duration.fig.to_html(full_html=False,
include_plotlyjs='cdn')
time_duration.save(settings)
return time_duration
def quality_over_time(dfs, path, settings, title=None, color="#4CB391"):
time_qual = Plot(path=path + "TimeQualityViolinPlot.html",
title="Violin plot of quality over time")
fig = go.Figure()
fig.add_trace(
go.Violin(y=dfs["quals"],
x=dfs["timebin"],
points=False,
spanmode="hard",
line_color='black',
line_width=1.5,
fillcolor=color,
opacity=0.8))
fig.update_layout(xaxis_title='Interval (hours)',
yaxis_title='Basecall quality',
title=title or time_qual.title,
title_x=0.5)
fig.update_xaxes(tickangle=45)
time_qual.fig = fig
time_qual.html = time_qual.fig.to_html(full_html=False,
include_plotlyjs='cdn')
time_qual.save(settings)
return time_qual
def spatial_heatmap(array, path, colormap, figformat, title=None):
"""Taking channel information and creating post run channel activity plots."""
logging.info(
"Nanoplotter: Creating heatmap of reads per channel using {} reads.".
format(array.size))
activity_map = Plot(path=path + ".html",
title="Number of reads generated per channel")
layout = make_layout(maxval=np.amax(array))
valueCounts = pd.value_counts(pd.Series(array))
for entry in valueCounts.keys():
layout.template[np.where(
layout.structure == entry)] = valueCounts[entry]
data = pd.DataFrame(layout.template,
index=layout.yticks,
columns=layout.xticks)
fig = go.Figure(
data=go.Heatmap(z=data.values.tolist(), colorscale=colormap))
fig.update_layout(xaxis_title='Channel',
yaxis_title='Number of reads',
title=title or activity_map.title,
title_x=0.5)
activity_map.fig = fig
activity_map.html = activity_map.fig.to_html(full_html=False,
include_plotlyjs='cdn')
activity_map.save(figformat)
return [activity_map]
def yield_by_minimal_length_plot(array,
name,
path,
settings,
title=None,
color="#4CB391"):
df = pd.DataFrame(data={"lengths": np.sort(array)[::-1]})
df["cumyield_gb"] = df["lengths"].cumsum() / 10**9
idx = np.random.choice(array.index, min(10000, len(array)), replace=False)
yield_by_length = Plot(path=path + "Yield_By_Length.html",
title="Yield by length")
fig = px.scatter(df,
x=df.reindex(idx)["lengths"],
y=df.reindex(idx)["cumyield_gb"])
fig.update_traces(marker=dict(color=color))
fig.update_layout(xaxis_title='Read length',
yaxis_title='Cumulative yield for minimal length [Gb]',
title=title or yield_by_length.title,
title_x=0.5)
yield_by_length.fig = fig
yield_by_length.html = yield_by_length.fig.to_html(full_html=False,
include_plotlyjs='cdn')
yield_by_length.save(settings)
return yield_by_length
def yield_by_minimal_length_plot(array, name, path,
title=None, color="#4CB391", figformat="png"):
df = pd.DataFrame(data={"lengths": np.sort(array)[::-1]})
df["cumyield_gb"] = df["lengths"].cumsum() / 10**9
yield_by_length = Plot(
path=path + "Yield_By_Length." + figformat,
title="Yield by length")
ax = sns.regplot(
x='lengths',
y="cumyield_gb",
data=df,
x_ci=None,
fit_reg=False,
color=color,
scatter_kws={"s": 3})
ax.set(
xlabel='Read length',
ylabel='Cumulative yield for minimal length',
title=title or yield_by_length.title)
yield_by_length.fig = ax.get_figure()
yield_by_length.save(format=figformat)
plt.close("all")
return yield_by_length
def compare_cumulative_yields(df, path, palette=None, title=None):
if palette is None:
palette = plotly.colors.DEFAULT_PLOTLY_COLORS * 5
dfs = check_valid_time_and_sort(df, "start_time").set_index("start_time")
logging.info(
"NanoComp: Creating cumulative yield plots using {} reads.".format(
len(dfs)))
cum_yield_gb = Plot(path=path +
"NanoComp_CumulativeYieldPlot_Gigabases.html",
title="Cumulative yield")
data = []
annotations = []
for sample, color in zip(df["dataset"].unique(), palette):
cumsum = dfs.loc[dfs["dataset"] == sample,
"lengths"].cumsum().resample('10T').max() / 1e9
data.append(
go.Scatter(x=cumsum.index.total_seconds() / 3600,
y=cumsum,
opacity=0.75,
name=sample,
marker=dict(color=color)))
annotations.append(
dict(xref='paper',
x=0.99,
y=cumsum[-1],
xanchor='left',
yanchor='middle',
text='{}Gb'.format(round(cumsum[-1])),
showarrow=False))
cum_yield_gb.html = plotly.offline.plot(
{
"data":
data,
"layout":
go.Layout(barmode='overlay',
title=title or cum_yield_gb.title,
xaxis=dict(title="Time (hours)"),
yaxis=dict(title="Yield (gigabase)"),
annotations=annotations)
},
output_type="div",
show_link=False)
cum_yield_gb.fig = go.Figure({
"data":
data,
"layout":
go.Layout(barmode='overlay',
title=title or cum_yield_gb.title,
xaxis=dict(title="Time (hours)"),
yaxis=dict(title="Yield (gigabase)"),
annotations=annotations)
})
cum_yield_gb.save()
return [cum_yield_gb]
def plot_over_time(dfs, path, figformat, title, color):
num_reads = Plot(path=path + "NumberOfReads_Over_Time." + figformat,
title="Number of reads over time")
s = dfs.loc[:, "lengths"].resample('10T').count()
ax = sns.regplot(x=s.index.total_seconds() / 3600,
y=s,
x_ci=None,
fit_reg=False,
color=color,
scatter_kws={"s": 3})
ax.set(xlabel='Run time (hours)',
ylabel='Number of reads per 10 minutes',
title=title or num_reads.title)
num_reads.fig = ax.get_figure()
num_reads.save(format=figformat)
plt.close("all")
plots = [num_reads]
if "channelIDs" in dfs:
pores_over_time = Plot(path=path + "ActivePores_Over_Time." +
figformat,
title="Number of active pores over time")
s = dfs.loc[:, "channelIDs"].resample('10T').nunique()
ax = sns.regplot(x=s.index.total_seconds() / 3600,
y=s,
x_ci=None,
fit_reg=False,
color=color,
scatter_kws={"s": 3})
ax.set(xlabel='Run time (hours)',
ylabel='Active pores per 10 minutes',
title=title or pores_over_time.title)
pores_over_time.fig = ax.get_figure()
pores_over_time.save(format=figformat)
plt.close("all")
plots.append(pores_over_time)
return plots
def compare_cumulative_yields(df, path, palette=None, title=None):
if palette is None:
palette = plotly.colors.DEFAULT_PLOTLY_COLORS * 5
dfs = check_valid_time_and_sort(df, "start_time").set_index("start_time")
logging.info(
"Nanoplotter: Creating cumulative yield plots using {} reads.".format(
len(dfs)))
cum_yield_gb = Plot(path=path +
"NanoComp_CumulativeYieldPlot_Gigabases.html",
title="Cumulative yield")
data = []
for d, c in zip(df["dataset"].unique(), palette):
s = dfs.loc[dfs["dataset"] == d,
"lengths"].cumsum().resample('10T').max() / 1e9
data.append(
go.Scatter(x=s.index.total_seconds() / 3600,
y=s,
opacity=0.75,
name=d,
marker=dict(color=c)))
cum_yield_gb.html = plotly.offline.plot(
{
"data":
data,
"layout":
go.Layout(
barmode='overlay',
title=title or cum_yield_gb.title,
xaxis=dict(title="Time (hours)"),
yaxis=dict(title="Yield (gigabase)"),
)
},
output_type="div",
show_link=False)
cum_yield_gb.fig = go.Figure({
"data":
data,
"layout":
go.Layout(
barmode='overlay',
title=title or cum_yield_gb.title,
xaxis=dict(title="Time (hours)"),
yaxis=dict(title="Yield (gigabase)"),
)
})
cum_yield_gb.save()
return [cum_yield_gb]
def active_pores_over_time(df, path, palette=None, title=None):
if palette is None:
palette = plotly.colors.DEFAULT_PLOTLY_COLORS * 5
dfs = check_valid_time_and_sort(df, "start_time").set_index("start_time")
logging.info("NanoComp: Creating active pores plot using {} reads.".format(
len(dfs)))
active_pores = Plot(path=path + "NanoComp_ActivePoresOverTime.html",
title="Active pores over time")
data = []
for sample, color in zip(df["dataset"].unique(), palette):
pores = dfs.loc[dfs["dataset"] == sample,
"channelIDs"].resample('10T').nunique()
data.append(
go.Scatter(x=pores.index.total_seconds() / 3600,
y=pores,
opacity=0.75,
name=sample,
marker=dict(color=color)))
active_pores.html = plotly.offline.plot(
{
"data":
data,
"layout":
go.Layout(
barmode='overlay',
title=title or active_pores.title,
xaxis=dict(title="Time (hours)"),
yaxis=dict(title="Active pores (per 10 minutes)"),
)
},
output_type="div",
show_link=False)
active_pores.fig = go.Figure({
"data":
data,
"layout":
go.Layout(
barmode='overlay',
title=title or active_pores.title,
xaxis=dict(title="Time (hours)"),
yaxis=dict(title="Active pores (per 10 minutes)"),
)
})
active_pores.save()
return active_pores
def n50_barplot(df, path, settings, title=None):
'''
Returns Plot object and creates figure(format specified)/html
containing bar chart of total gb aligned/sequenced read length n50
'''
n50_bar = Plot(path=path + "NanoComp_N50.html",
title="Comparing read length N50")
if "aligned_lengths" in df:
n50s = [
get_N50(np.sort(df.loc[df["dataset"] == d, "aligned_lengths"]))
for d in df["dataset"].unique()
]
ylabel = 'Total gigabase aligned'
else:
n50s = [
get_N50(np.sort(df.loc[df["dataset"] == d, "lengths"]))
for d in df["dataset"].unique()
]
ylabel = 'Sequenced read length N50'
idx = df["dataset"].unique()
n50_bar.fig = go.Figure()
for idx, n50 in zip(idx, n50s):
n50_bar.fig.add_trace(go.Bar(x=[idx], y=[n50], name=idx))
n50_bar.fig.update_layout(
title=title or n50_bar.title,
title_x=0.5,
yaxis_title=ylabel,
)
n50_bar.html = n50_bar.fig.to_html(full_html=False, include_plotlyjs='cdn')
n50_bar.save(settings)
return [n50_bar]
def compare_sequencing_speed(df, path, settings, title=None):
logging.info(
"NanoComp: creating comparison of sequencing speed over time.")
seq_speed = Plot(path=path + "NanoComp_sequencing_speed_over_time.html",
title="Sequencing speed over time")
dfs = check_valid_time_and_sort(df, "start_time").set_index("start_time")
dfs = dfs.loc[dfs["duration"] > 0]
palette = plotly.colors.DEFAULT_PLOTLY_COLORS * 5
data = []
for sample, color in zip(df["dataset"].unique(), palette):
seqspeed = (dfs.loc[dfs["dataset"] == sample, "lengths"] /
dfs.loc[dfs["dataset"] == sample,
"duration"]).resample('30T').median()
data.append(
go.Scatter(x=seqspeed.index.total_seconds() / 3600,
y=seqspeed,
opacity=0.75,
name=sample,
mode='lines',
marker=dict(color=color)))
seq_speed.fig = go.Figure({"data": data})
seq_speed.fig.update_layout(
title=title or seq_speed.title,
title_x=0.5,
xaxis_title='Interval (hours)',
yaxis_title="Sequencing speed (nucleotides/second)")
seq_speed.html = seq_speed.fig.to_html(full_html=False,
include_plotlyjs='cdn')
seq_speed.save(settings)
return [seq_speed]
def scatter(x, y, names, path, plots, color="#4CB391", figformat="png",
stat=None, log=False, minvalx=0, minvaly=0, title=None,
plot_settings={}, xmax=None, ymax=None):
"""Create bivariate plots.
Create four types of bivariate plots of x vs y, containing marginal summaries
-A scatter plot with histograms on axes
-A hexagonal binned plot with histograms on axes
-A kernel density plot with density curves on axes
-A pauvre-style plot using code from https://github.com/conchoecia/pauvre
"""
logging.info("Nanoplotter: Creating {} vs {} plots using statistics from {} reads.".format(
names[0], names[1], x.size))
if not contains_variance([x, y], names):
return []
sns.set(style="ticks", **plot_settings)
maxvalx = xmax or np.amax(x)
maxvaly = ymax or np.amax(y)
plots_made = []
if plots["hex"]:
hex_plot = Plot(
path=path + "_hex." + figformat,
title="{} vs {} plot using hexagonal bins".format(names[0], names[1]))
plot = sns.jointplot(
x=x,
y=y,
kind="hex",
color=color,
stat_func=stat,
space=0,
xlim=(minvalx, maxvalx),
ylim=(minvaly, maxvaly),
height=10)
plot.set_axis_labels(names[0], names[1])
if log:
hex_plot.title = hex_plot.title + " after log transformation of read lengths"
ticks = [10**i for i in range(10) if not 10**i > 10 * (10**maxvalx)]
plot.ax_joint.set_xticks(np.log10(ticks))
plot.ax_marg_x.set_xticks(np.log10(ticks))
plot.ax_joint.set_xticklabels(ticks)
plt.subplots_adjust(top=0.90)
plot.fig.suptitle(title or "{} vs {} plot".format(names[0], names[1]), fontsize=25)
hex_plot.fig = plot
hex_plot.save(format=figformat)
plots_made.append(hex_plot)
sns.set(style="darkgrid", **plot_settings)
if plots["dot"]:
dot_plot = Plot(
path=path + "_dot." + figformat,
title="{} vs {} plot using dots".format(names[0], names[1]))
plot = sns.jointplot(
x=x,
y=y,
kind="scatter",
color=color,
stat_func=stat,
xlim=(minvalx, maxvalx),
ylim=(minvaly, maxvaly),
space=0,
height=10,
joint_kws={"s": 1})
plot.set_axis_labels(names[0], names[1])
if log:
dot_plot.title = dot_plot.title + " after log transformation of read lengths"
ticks = [10**i for i in range(10) if not 10**i > 10 * (10**maxvalx)]
plot.ax_joint.set_xticks(np.log10(ticks))
plot.ax_marg_x.set_xticks(np.log10(ticks))
plot.ax_joint.set_xticklabels(ticks)
plt.subplots_adjust(top=0.90)
plot.fig.suptitle(title or "{} vs {} plot".format(names[0], names[1]), fontsize=25)
dot_plot.fig = plot
dot_plot.save(format=figformat)
plots_made.append(dot_plot)
if plots["kde"]:
idx = np.random.choice(x.index, min(2000, len(x)), replace=False)
kde_plot = Plot(
path=path + "_kde." + figformat,
title="{} vs {} plot using a kernel density estimation".format(names[0], names[1]))
plot = sns.jointplot(
x=x[idx],
y=y[idx],
kind="kde",
clip=((0, np.Inf), (0, np.Inf)),
xlim=(minvalx, maxvalx),
ylim=(minvaly, maxvaly),
space=0,
color=color,
stat_func=stat,
shade_lowest=False,
height=10)
plot.set_axis_labels(names[0], names[1])
if log:
kde_plot.title = kde_plot.title + " after log transformation of read lengths"
ticks = [10**i for i in range(10) if not 10**i > 10 * (10**maxvalx)]
plot.ax_joint.set_xticks(np.log10(ticks))
plot.ax_marg_x.set_xticks(np.log10(ticks))
plot.ax_joint.set_xticklabels(ticks)
plt.subplots_adjust(top=0.90)
plot.fig.suptitle(title or "{} vs {} plot".format(names[0], names[1]), fontsize=25)
kde_plot.fig = plot
kde_plot.save(format=figformat)
plots_made.append(kde_plot)
if plots["pauvre"] and names == ['Read lengths', 'Average read quality'] and log is False:
pauvre_plot = Plot(
path=path + "_pauvre." + figformat,
title="{} vs {} plot using pauvre-style @conchoecia".format(names[0], names[1]))
sns.set(style="white", **plot_settings)
margin_plot(df=pd.DataFrame({"length": x, "meanQual": y}),
Y_AXES=False,
title=title or "Length vs Quality in Pauvre-style",
plot_maxlen=None,
plot_minlen=0,
plot_maxqual=None,
plot_minqual=0,
lengthbin=None,
qualbin=None,
BASENAME="whatever",
path=pauvre_plot.path,
fileform=[figformat],
dpi=600,
TRANSPARENT=True,
QUIET=True)
plots_made.append(pauvre_plot)
plt.close("all")
return plots_made
def scatter(x,
y,
legacy,
names,
path,
plots,
color,
colormap,
settings,
stat=None,
log=False,
minvalx=0,
minvaly=0,
title=None,
xmax=None,
ymax=None):
"""->
create marginalised scatterplots and KDE plot with marginalized histograms
-> update from scatter_legacy function to utilise plotly package
- scatterplot with histogram on both axes
- kernel density plot with histograms on both axes
- hexbin not implemented yet
- pauvre plot temporarily not available
"""
logging.info(
f"NanoPlot: Creating {names[0]} vs {names[1]} plots using {x.size} reads."
)
if not contains_variance([x, y], names):
return []
plots_made = []
idx = np.random.choice(x.index, min(10000, len(x)), replace=False)
maxvalx = xmax or np.amax(x[idx])
maxvaly = ymax or np.amax(y[idx])
if plots["dot"]:
if log:
dot_plot = Plot(path=path + "_loglength_dot.html",
title=f"{names[0]} vs {names[1]} plot using dots "
"after log transformation of read lengths")
else:
dot_plot = Plot(path=path + "_dot.html",
title=f"{names[0]} vs {names[1]} plot using dots")
fig = px.scatter(x=x[idx],
y=y[idx],
marginal_x="histogram",
marginal_y="histogram",
range_x=[minvalx, maxvalx],
range_y=[minvaly, maxvaly])
fig.update_traces(marker=dict(color=color))
fig.update_yaxes(rangemode="tozero")
fig.update_xaxes(rangemode="tozero")
fig.update_layout(xaxis_title=names[0],
yaxis_title=names[1],
title=title or dot_plot.title,
title_x=0.5)
if log:
ticks = [
10**i for i in range(10) if not 10**i > 10 * (10**maxvalx)
]
fig.update_layout(xaxis=dict(tickmode='array',
tickvals=np.log10(ticks),
ticktext=ticks,
tickangle=45))
dot_plot.fig = fig
dot_plot.html = dot_plot.fig.to_html(full_html=False,
include_plotlyjs='cdn')
dot_plot.save(settings)
plots_made.append(dot_plot)
if plots["kde"]:
kde_plot = Plot(path=path + "_loglength_kde.html" if log else path +
"_kde.html",
title=f"{names[0]} vs {names[1]} kde plot")
col = hex_to_rgb_scale_0_1(color)
fig = ff.create_2d_density(x[idx],
y[idx],
point_size=3,
hist_color=col,
point_color=col,
colorscale=colormap)
fig.update_layout(xaxis_title=names[0],
yaxis_title=names[1],
title=title or kde_plot.title,
title_x=0.5,
xaxis=dict(tickangle=45))
if log:
ticks = [
10**i for i in range(10) if not 10**i > 10 * (10**maxvalx)
]
fig.update_layout(xaxis=dict(tickmode='array',
tickvals=np.log10(ticks),
ticktext=ticks,
tickangle=45))
kde_plot.fig = fig
kde_plot.html = kde_plot.fig.to_html(full_html=False,
include_plotlyjs='cdn')
kde_plot.save(settings)
plots_made.append(kde_plot)
if 1 in legacy.values():
settings, args = utils.get_args()
plots_made += scatter_legacy(x=x[idx],
y=y[idx],
names=names,
path=path,
plots=legacy,
color=color,
settings=settings,
stat=stat,
log=log,
minvalx=minvalx,
minvaly=minvaly,
title=title)
return plots_made
def plot_over_time(dfs, path, title, settings, color="#4CB391"):
num_reads = Plot(path=path + "NumberOfReads_Over_Time.html",
title="Number of reads over time")
s = dfs.loc[:, "lengths"].resample('10T').count()
fig = px.scatter(data_frame=None, x=s.index.total_seconds() / 3600, y=s)
fig.update_traces(marker=dict(color=color))
fig.update_layout(xaxis_title='Run time (hours)',
yaxis_title='Number of reads per 10 minutes',
title=title or num_reads.title,
title_x=0.5)
num_reads.fig = fig
num_reads.html = num_reads.fig.to_html(full_html=False,
include_plotlyjs='cdn')
num_reads.save(settings)
plots = [num_reads]
if "channelIDs" in dfs:
pores_over_time = Plot(path=path + "ActivePores_Over_Time.html",
title="Number of active pores over time")
s = dfs.loc[:, "channelIDs"].resample('10T').nunique()
fig = px.scatter(data_frame=None,
x=s.index.total_seconds() / 3600,
y=s)
fig.update_traces(marker=dict(color=color))
fig.update_layout(xaxis_title='Run time (hours)',
yaxis_title='Active pores per 10 minutes',
title=title or pores_over_time.title,
title_x=0.5)
pores_over_time.fig = fig
pores_over_time.html = pores_over_time.fig.to_html(
full_html=False, include_plotlyjs='cdn')
pores_over_time.save(settings)
plots.append(pores_over_time)
return plots
def cumulative_yield(dfs, path, title, color, settings):
cum_yield_gb = Plot(path=path + "CumulativeYieldPlot_Gigabases.html",
title="Cumulative yield")
s = dfs.loc[:, "lengths"].cumsum().resample('10T').max() / 1e9
fig = px.scatter(x=s.index.total_seconds() / 3600, y=s)
fig.update_traces(marker=dict(color=color))
fig.update_layout(xaxis_title='Run time (hours)',
yaxis_title='Cumulative yield in gigabase',
title=title or cum_yield_gb.title,
title_x=0.5)
cum_yield_gb.fig = fig
cum_yield_gb.html = cum_yield_gb.fig.to_html(full_html=False,
include_plotlyjs='cdn')
cum_yield_gb.save(settings)
cum_yield_reads = Plot(path=path +
"CumulativeYieldPlot_NumberOfReads.html",
title="Cumulative yield")
s = dfs.loc[:, "lengths"].resample('10T').count().cumsum()
fig = px.scatter(x=s.index.total_seconds() / 3600, y=s)
fig.update_traces(marker=dict(color=color))
fig.update_layout(xaxis_title='Run time (hours)',
yaxis_title='Cumulative yield in number of reads',
title=title or cum_yield_gb.title,
title_x=0.5)
cum_yield_reads.fig = fig
cum_yield_reads.html = cum_yield_reads.fig.to_html(full_html=False,
include_plotlyjs='cdn')
cum_yield_reads.save(settings)
return [cum_yield_gb, cum_yield_reads]
def length_plots(array, name, path, title=None, n50=None, color="#4CB391", figformat="png"):
"""Create histogram of normal and log transformed read lengths."""
logging.info("Nanoplotter: Creating length plots for {}.".format(name))
maxvalx = np.amax(array)
if n50:
logging.info("Nanoplotter: Using {} reads with read length N50 of {}bp and maximum of {}bp."
.format(array.size, n50, maxvalx))
else:
logging.info("Nanoplotter: Using {} reads maximum of {}bp.".format(array.size, maxvalx))
plots = []
HistType = namedtuple('HistType', 'weight name ylabel')
for h_type in [HistType(None, "", "Number of reads"),
HistType(array, "Weighted ", "Number of bases")]:
histogram = Plot(
path=path + h_type.name.replace(" ", "_") + "Histogram"
+ name.replace(' ', '') + "." + figformat,
title=h_type.name + "Histogram of read lengths")
ax = sns.distplot(
a=array,
kde=False,
hist=True,
bins=max(round(int(maxvalx) / 500), 10),
color=color,
hist_kws=dict(weights=h_type.weight,
edgecolor=color,
linewidth=0.2,
alpha=0.8))
if n50:
plt.axvline(n50)
plt.annotate('N50', xy=(n50, np.amax([h.get_height() for h in ax.patches])), size=8)
ax.set(
xlabel='Read length',
ylabel=h_type.ylabel,
title=title or histogram.title)
plt.ticklabel_format(style='plain', axis='y')
histogram.fig = ax.get_figure()
histogram.save(format=figformat)
plt.close("all")
log_histogram = Plot(
path=path + h_type.name.replace(" ", "_") + "LogTransformed_Histogram"
+ name.replace(' ', '') + "." + figformat,
title=h_type.name + "Histogram of read lengths after log transformation")
ax = sns.distplot(
a=np.log10(array),
kde=False,
hist=True,
color=color,
hist_kws=dict(weights=h_type.weight,
edgecolor=color,
linewidth=0.2,
alpha=0.8))
ticks = [10**i for i in range(10) if not 10**i > 10 * maxvalx]
ax.set(
xticks=np.log10(ticks),
xticklabels=ticks,
xlabel='Read length',
ylabel=h_type.ylabel,
title=title or log_histogram.title)
if n50:
plt.axvline(np.log10(n50))
plt.annotate('N50', xy=(np.log10(n50), np.amax(
[h.get_height() for h in ax.patches])), size=8)
plt.ticklabel_format(style='plain', axis='y')
log_histogram.fig = ax.get_figure()
log_histogram.save(format=figformat)
plt.close("all")
plots.extend([histogram, log_histogram])
plots.append(yield_by_minimal_length_plot(array=array,
name=name,
path=path,
title=title,
color=color,
figformat=figformat))
return plots
