labels

Deprecated: use labelsDataSet

labelsDataset

labelsDataset( java.lang.String[] labels, String context ) → QDataSet

create a labels dataset for tagging rows of a dataset. If the context has been used already, including "default", then the EnumerationUnit for the data will be preserved. labels(["red","green","blue"],"default") will always return an equivalent (and comparable) result during a session. Example: dep1= labels( ["X","Y","Z"], "GSM" )

Parameters

labels - array of string labels
context - the namespace for the labels, to provide control over String→int mapping.

Returns:

rank 1 QDataSet

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le

le( QDataSet ds1, QDataSet ds2 ) → QDataSet

element-wise function returns 1 where ds1<=ds2.

Parameters

ds1 -
ds2 -

Returns:

org.das2.qds.QDataSet

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lesserOf

lesserOf( QDataSet ds1, QDataSet ds2 ) → QDataSet

element-wise function returns the smaller of ds1 and ds2. If an element of ds1 or ds2 is fill, then the result is fill.

Parameters

ds1 -
ds2 -

Returns:

the smaller of the two, in the units of ds1.

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link

link( QDataSet x, QDataSet y ) → QDataSet

link is the fundamental operator where we declare that one dataset is dependent on another. For example link(x,y) creates a new dataset where y is the dependent variable of the independent variable x. link is like the plot command, but doesn't plot. For example

plot(X,Y) shows a plot of Y(X),
link(X,Y) returns the dataset Y(X).

Parameters

x - rank 1 dataset
y - rank 1 or rank 2 bundle dataset

Returns:

rank 1 dataset with DEPEND_0 set to x.

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linspace

linspace( double min, double max, int len0 ) → QDataSet

return a rank 1 dataset with len0 linearly-spaced values, the first is min and the last is max.

Parameters

min - double
max - double
len0 - number of elements in the result

Returns:

rank 1 dataset of linearly spaced data.

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logspace

logspace( double min, double max, int len0 ) → QDataSet

return a rank 1 dataset with len0 logarithmically-spaced values, the first is min and the last is max.

Parameters

min - double
max - double
len0 - number of elements in the result

Returns:

rank 1 dataset of logarithmically spaced data.

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lt

lt( QDataSet ds1, QDataSet ds2 ) → QDataSet

element-wise function returns 1 where ds1<ds2.

Parameters

ds1 -
ds2 -

Returns:

org.das2.qds.QDataSet

search for examples view on GitHub view source