cytoflow.views.stats_2d¶
Plots two statistics on a scatter plot.
Stats2DView
– the IView
class that makes the plot.
- class cytoflow.views.stats_2d.Stats2DView[source]¶
Bases:
cytoflow.views.base_views.Base2DStatisticsView
Plot two statistics on a scatter plot. A point (X,Y) is drawn for every pair of elements with the same value of
variable
; the X value is fromxstatistic
and the Y value is fromystatistic
.- xstatistic¶
The name of the statistic to plot on the X axis. Must be a key in the
Experiment.statistics
attribute of theExperiment
being plotted.
- ystatistic¶
The name of the statistic to plot on the Y axis. Must be a key in the
Experiment.statistics
attribute of theExperiment
being plotted.
- x_error_statistic¶
The name of the statistic used to plot error bars on the X axis. Must be a key in the
Experiment.statistics
attribute of theExperiment
being plotted.
- y_error_statistic¶
The name of the statistic used to plot error bars on the Y axis. Must be a key in the
Experiment.statistics
attribute of theExperiment
being plotted.
- xscale¶
The scale applied to
xstatistic
before plotting it.- Type
{‘linear’, ‘log’, ‘logicle’}
- yscale¶
The scale applied to
ystatistic
before plotting it.- Type
{‘linear’, ‘log’, ‘logicle’}
- variable¶
The condition that varies when plotting this statistic: used for the x axis of line plots, the bar groups in bar plots, etc.
- Type
- subset¶
An expression that specifies the subset of the statistic to plot. Passed unmodified to
pandas.DataFrame.query
.- Type
- xfacet¶
Set to one of the
Experiment.conditions
in theExperiment
, and a new column of subplots will be added for every unique value of that condition.- Type
String
- yfacet¶
Set to one of the
Experiment.conditions
in theExperiment
, and a new row of subplots will be added for every unique value of that condition.- Type
String
- huefacet¶
Set to one of the
Experiment.conditions
in the in theExperiment
, and a new color will be added to the plot for every unique value of that condition.- Type
String
Examples
Make a little data set.
>>> import cytoflow as flow >>> import_op = flow.ImportOp() >>> import_op.tubes = [flow.Tube(file = "Plate01/RFP_Well_A3.fcs", ... conditions = {'Dox' : 10.0}), ... flow.Tube(file = "Plate01/CFP_Well_A4.fcs", ... conditions = {'Dox' : 1.0})] >>> import_op.conditions = {'Dox' : 'float'} >>> ex = import_op.apply()
Create two new statistics
>>> ch_op = flow.ChannelStatisticOp(name = 'MeanByDox', ... channel = 'Y2-A', ... function = flow.geom_mean, ... by = ['Dox']) >>> ex2 = ch_op.apply(ex) >>> ch_op_2 = flow.ChannelStatisticOp(name = 'SdByDox', ... channel = 'Y2-A', ... function = flow.geom_sd, ... by = ['Dox']) >>> ex3 = ch_op_2.apply(ex2)
Plot the statistics
>>> flow.Stats2DView(variable = 'Dox', ... xstatistic = ('MeanByDox', 'geom_mean'), ... xscale = 'log', ... ystatistic = ('SdByDox', 'geom_sd'), ... yscale = 'log').plot(ex3)
- enum_plots(experiment)[source]¶
Returns an iterator over the possible plots that this View can produce. The values returned can be passed to
plot
.
- plot(experiment, plot_name=None, **kwargs)[source]¶
Plot a chart of two statistics’ values as a common variable changes.
- Parameters
experiment (Experiment) – The
Experiment
to plot using this view.title (str) – Set the plot title
xlabel (str) – Set the X axis label
ylabel (str) – Set the Y axis label
huelabel (str) – Set the label for the hue facet (in the legend)
legend (bool) – Plot a legend for the color or hue facet? Defaults to
True
.sharex (bool) – If there are multiple subplots, should they share X axes? Defaults to
True
.sharey (bool) – If there are multiple subplots, should they share Y axes? Defaults to
True
.row_order (list) – Override the row facet value order with the given list. If a value is not given in the ordering, it is not plotted. Defaults to a “natural ordering” of all the values.
col_order (list) – Override the column facet value order with the given list. If a value is not given in the ordering, it is not plotted. Defaults to a “natural ordering” of all the values.
hue_order (list) – Override the hue facet value order with the given list. If a value is not given in the ordering, it is not plotted. Defaults to a “natural ordering” of all the values.
height (float) – The height of each row in inches. Default = 3.0
aspect (float) – The aspect ratio of each subplot. Default = 1.5
col_wrap (int) – If
xfacet
is set andyfacet
is not set, you can “wrap” the subplots around so that they form a multi-row grid by setting this to the number of columns you want.sns_style ({“darkgrid”, “whitegrid”, “dark”, “white”, “ticks”}) – Which
seaborn
style to apply to the plot? Default iswhitegrid
.sns_context ({“paper”, “notebook”, “talk”, “poster”}) – Which
seaborn
context to use? Controls the scaling of plot elements such as tick labels and the legend. Default istalk
.palette (palette name, list, or dict) – Colors to use for the different levels of the hue variable. Should be something that can be interpreted by
seaborn.color_palette
, or a dictionary mapping hue levels to matplotlib colors.despine (Bool) – Remove the top and right axes from the plot? Default is
True
.plot_name (str) – If this
IView
can make multiple plots,plot_name
is the name of the plot to make. Must be one of the values retrieved fromenum_plots
.xlim ((float, float)) – Set the range of the plot’s X axis.
ylim ((float, float)) – Set the range of the plot’s Y axis.
color (a matplotlib color) – The color to plot with. Overridden if
huefacet
is notNone
linestyle ({‘solid’ | ‘dashed’, ‘dashdot’, ‘dotted’ | (offset, on-off-dash-seq) | ‘-’ | ‘–’ | ‘-.’ | ‘:’ | ‘None’ | ‘ ‘ | ‘’})
marker (a matplotlib marker style) – See http://matplotlib.org/api/markers_api.html#module-matplotlib.markers
markersize (int) – The marker size in points
markerfacecolor (a matplotlib color) – The color to make the markers. Overridden (?) if
huefacet
is notNone
alpha (the alpha blending value, from 0.0 (transparent) to 1.0 (opaque))
Notes
Other
kwargs
are passed to matplotlib.pyplot.plot