Xarray get list of variable names

To get decennial Census data or American Community Survey data, tidycensus users supply an argument to the required geography parameter. Arguments are formatted as consumed by the Census API, and specified in the table below. Not all geographies are available for all surveys, all years, and all variables. A netCDF dataset contains dimensions, variables, and attributes, which all have both a name and an ID number by which they are identified. These components can be used together to capture the meaning of data and relations among data fields in an array-oriented dataset. To get decennial Census data or American Community Survey data, tidycensus users supply an argument to the required geography parameter. Arguments are formatted as consumed by the Census API, and specified in the table below. Not all geographies are available for all surveys, all years, and all variables.

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  • A varray is used to store an ordered collection of data, however it is often better to think of an array as a collection of variables of the same type. All varrays consist of contiguous memory locations. The lowest address corresponds to the first element and the highest address to the last element.
  • transformed: bool If True, y-axes and x-axes have been translated (see the :meth:`px2data_x` and :meth:`~straditize.straditizer.Straditizer.px2data_y` methods) colnames: list of str The column names to use in the plot ``**kwargs`` any other keyword argument that is passed to the :meth:`psy_strat.stratplot.StratGroup.from_dataset` method Returns ----- psy_strat.stratplot.StratGroup The grouper that visualizes the given `columns` in the `fig`""" from psy_strat.stratplot import strat_groupers ...
  • A netCDF dataset contains dimensions, variables, and attributes, which all have both a name and an ID number by which they are identified. These components can be used together to capture the meaning of data and relations among data fields in an array-oriented dataset.
  • To search through folders and subfolders on the path recursively, use wildcards in the path name. For example, dir */*.txt lists all files with a txt extension exactly one folder under the current folder, and dir **/*.txt lists all files with a txt extension zero or more folders under the current folder.
  • name_dict (dict-like, optional) – Dictionary whose keys are current variable or dimension names and whose values are the desired names. optional (**names,) – Keyword form of name_dict. One of name_dict or names must be provided. Returns. renamed – Dataset with renamed variables and dimensions. Return type. Dataset
  • A 1D array or list, which is interpreted as values for a one dimensional coordinate variable along the same dimension as it’s name A dictionary of {coord_name: coord} where values are of the same form as the list.
  • xarray plotting functionality is a thin wrapper around the popular matplotlib library. Matplotlib syntax and function names were copied as much as possible, which makes for an easy transition between the two. Matplotlib must be installed before xarray can plot. For more extensive plotting applications consider the following projects: The Get-ADOrganizationalUnit cmdlet gets an organizational unit (OU) object or performs a search to get multiple OUs. The Identity parameter specifies the Active Directory OU to get. You can identify an OU by its distinguished name or GUID.

Sep 03, 2019 · To list the items and variables in the Variable: drive, use the Get-Item or Get-ChildItem cmdlets. Get-ChildItem Variable: To get the value of a particular variable, use file system notation to specify the name of the drive and the name of the variable.

Oct 09, 2016 · Get variable values by name in C# Posted on October 9, 2016 by Rod Stephens The process for displaying variable values is somewhat convoluted, but it’s not too long. Access variables by name. You can access variable data, or select a subset of variables, by using variable (column) names and dot indexing. Load a sample dataset array. Display the names of the variables in hospital. A mapping from variable names to DataArray objects, Variable objects or to tuples of the form (dims, data[, attrs]) which can be used as arguments to create a new Variable. Each dimension must have the same length in all variables in which it appears. The following notations are accepted: mapping {var name: DataArray} mapping {var name: Variable}

get list of keys in xarray dataset. ... I'm adding variables to an xarray Dataset, and when I'm done, I want to extract a list of the keys, but I couldn't find a way ... A mapping from variable names to DataArray objects, Variable objects or to tuples of the form (dims, data[, attrs]) which can be used as arguments to create a new Variable. Each dimension must have the same length in all variables in which it appears. The following notations are accepted: mapping {var name: DataArray} mapping {var name: Variable}

A 1D array or list, which is interpreted as values for a one dimensional coordinate variable along the same dimension as it’s name A dictionary of {coord_name: coord} where values are of the same form as the list. xarray.Variable¶ class xarray.Variable (dims, data, attrs=None, encoding=None, fastpath=False) ¶ A netcdf-like variable consisting of dimensions, data and attributes which describe a single Array. A single Variable object is not fully described outside the context of its parent Dataset (if you want such a fully described object, use a DataArray instead).

dataset uses the workspace name for the variable name in A. To include multiple variables, specify VAR_1,VAR_2,...,VAR_N. Variables can be arrays of any size, but all variables must have the same number of rows. VAR can also be an expression. .

xarray.Variable¶ class xarray.Variable (dims, data, attrs=None, encoding=None, fastpath=False) ¶ A netcdf-like variable consisting of dimensions, data and attributes which describe a single Array. A single Variable object is not fully described outside the context of its parent Dataset (if you want such a fully described object, use a DataArray instead). xarray.Variable¶ class xarray.Variable (dims, data, attrs=None, encoding=None, fastpath=False) ¶ A netcdf-like variable consisting of dimensions, data and attributes which describe a single Array. A single Variable object is not fully described outside the context of its parent Dataset (if you want such a fully described object, use a DataArray instead). Dec 26, 2018 · That is why the most convenient way to get everything installed is to use the following command: $ conda install xarray dask netCDF4 bottleneck. Experienced Python programmers are recommended check the relevant documentation for more details. If you are a beginner, no worries. I made a list of dependencies that you need to check: Python 2.7/3.5 ...

transformed: bool If True, y-axes and x-axes have been translated (see the :meth:`px2data_x` and :meth:`~straditize.straditizer.Straditizer.px2data_y` methods) colnames: list of str The column names to use in the plot ``**kwargs`` any other keyword argument that is passed to the :meth:`psy_strat.stratplot.StratGroup.from_dataset` method Returns ----- psy_strat.stratplot.StratGroup The grouper that visualizes the given `columns` in the `fig`""" from psy_strat.stratplot import strat_groupers ... I thought we were writing variables in order of appearance in datasets, but it looks like we weren't doing that. #480 should fix that issue, at least when using netCDF4-python (the default backend). Once that patch is merged, you can reorder variables in datasets by indexing with a list of variable names, e.g., xarray plotting functionality is a thin wrapper around the popular matplotlib library. Matplotlib syntax and function names were copied as much as possible, which makes for an easy transition between the two. Matplotlib must be installed before xarray can plot. For more extensive plotting applications consider the following projects:

Jul 04, 2012 · Use some variable name that hasn't already been used in your app's current scope. My example was designed to show how to access array references using variables' string name as keys. I have no way of knowing what variables you are using unless you post your code for the given class. You don’t have to specify all levels of the MultiIndex by passing only the first elements of the tuple. For example, you can use “partial” indexing to get all elements with bar in the first level as follows: df.loc[‘bar’] This is a shortcut for the slightly more verbose notation df.loc[('bar',),] (equivalent to df.loc['bar',] in this ... A 1D array or list, which is interpreted as values for a one dimensional coordinate variable along the same dimension as it’s name A dictionary of {coord_name: coord} where values are of the same form as the list.

dataset uses the workspace name for the variable name in A. To include multiple variables, specify VAR_1,VAR_2,...,VAR_N. Variables can be arrays of any size, but all variables must have the same number of rows. VAR can also be an expression. May 29, 2018 · Some companies might discourage the use of variable lists in production code because automated lists can be volatile. If the number and names of variables in your data sets occasionally change, it is safer to manually list the variables that you are analyzing. However, for developing code and constructing examples, lists can be a huge time saver. name_dict (dict-like, optional) – Dictionary whose keys are current variable or dimension names and whose values are the desired names. optional (**names,) – Keyword form of name_dict. One of name_dict or names must be provided. Returns. renamed – Dataset with renamed variables and dimensions. Return type. Dataset

A 1D array or list, which is interpreted as values for a one dimensional coordinate variable along the same dimension as it’s name A dictionary of {coord_name: coord} where values are of the same form as the list. xarray plotting functionality is a thin wrapper around the popular matplotlib library. Matplotlib syntax and function names were copied as much as possible, which makes for an easy transition between the two. Matplotlib must be installed before xarray can plot. For more extensive plotting applications consider the following projects:

With Python/xarray, here's how you open a NetCDF file, extract a variable "O3", and save it to a new file. import xarray as xr # use "xr" as a shortcut for the xarray module ds = xr.open_dataset( ' data.nc ' ) # "ds" contains all information in that NC file dr = ds[ ' O3 ' ] # Extract a variable from the entire file. You don’t have to specify all levels of the MultiIndex by passing only the first elements of the tuple. For example, you can use “partial” indexing to get all elements with bar in the first level as follows: df.loc[‘bar’] This is a shortcut for the slightly more verbose notation df.loc[('bar',),] (equivalent to df.loc['bar',] in this ... To search through folders and subfolders on the path recursively, use wildcards in the path name. For example, dir */*.txt lists all files with a txt extension exactly one folder under the current folder, and dir **/*.txt lists all files with a txt extension zero or more folders under the current folder.

A list of attribute names corresponding to global netCDF attributes defined for the Dataset can be obtained with the ncattrs method. These attributes can be created by assigning to an attribute of the Dataset instance. A dictionary containing all the netCDF attribute name/value pairs is provided by the __dict__ attribute of a Dataset instance.

.funs: List of function calls generated by funs(), or a character vector of function names, or simply a function. …: Additional arguments for the function calls in .funs..predicate: A predicate function to be applied to the columns or a logical vector. The variables for which .predicate is or returns TRUE are selected. transformed: bool If True, y-axes and x-axes have been translated (see the :meth:`px2data_x` and :meth:`~straditize.straditizer.Straditizer.px2data_y` methods) colnames: list of str The column names to use in the plot ``**kwargs`` any other keyword argument that is passed to the :meth:`psy_strat.stratplot.StratGroup.from_dataset` method Returns ----- psy_strat.stratplot.StratGroup The grouper that visualizes the given `columns` in the `fig`""" from psy_strat.stratplot import strat_groupers ...

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  • We are first setting the value of 2 variables, a and b to 5 and 10 respectively. We are adding those values and storing in the variable c. Finally, we are displaying the value of the variable c. The output of the above program would be 15. All of the arithmetic operators work in batch files. The following example shows arithmetic operators can ... xarray plotting functionality is a thin wrapper around the popular matplotlib library. Matplotlib syntax and function names were copied as much as possible, which makes for an easy transition between the two. Matplotlib must be installed before xarray can plot. For more extensive plotting applications consider the following projects: You don’t have to specify all levels of the MultiIndex by passing only the first elements of the tuple. For example, you can use “partial” indexing to get all elements with bar in the first level as follows: df.loc[‘bar’] This is a shortcut for the slightly more verbose notation df.loc[('bar',),] (equivalent to df.loc['bar',] in this ...
  • Here are the examples of the python api xarray.Variable taken from open source projects. By voting up you can indicate which examples are most useful and appropriate. Here are the examples of the python api xarray.Variable taken from open source projects. By voting up you can indicate which examples are most useful and appropriate. Oct 09, 2016 · Get variable values by name in C# Posted on October 9, 2016 by Rod Stephens The process for displaying variable values is somewhat convoluted, but it’s not too long.
  • .funs: List of function calls generated by funs(), or a character vector of function names, or simply a function. …: Additional arguments for the function calls in .funs..predicate: A predicate function to be applied to the columns or a logical vector. The variables for which .predicate is or returns TRUE are selected. Jul 04, 2012 · Use some variable name that hasn't already been used in your app's current scope. My example was designed to show how to access array references using variables' string name as keys. I have no way of knowing what variables you are using unless you post your code for the given class. The first argument supplies the name of the variable, the second argument sets the datatype and the third argument sets the shape. "f4" specifies a 32 bit float and "i4" represents a 32 bit integer 2. The shapes of the variables are specified using the dimension names. To create a scalar variable, one would omit the third argument.
  • The Get-Variable cmdlet gets the PowerShell variables in the current console. You can retrieve just the values of the variables by specifying the ValueOnly parameter, and you can filter the variables returned by name. The first command gets only the variables that are defined in the local scope. It ... .
  • In our use case, we have two variables conventionally named CHROM (chromosome) and POS (position) which together describe a location in a genome. I want to combine both variables into a multi-index so I can, e.g., select all data from some data variable for chromosome X between positions 100,000-200,000. You don’t have to specify all levels of the MultiIndex by passing only the first elements of the tuple. For example, you can use “partial” indexing to get all elements with bar in the first level as follows: df.loc[‘bar’] This is a shortcut for the slightly more verbose notation df.loc[('bar',),] (equivalent to df.loc['bar',] in this ... Indexing and selecting data¶ xarray offers extremely flexible indexing routines that combine the best features of NumPy and pandas for data selection. The most basic way to access elements of a DataArray object is to use Python’s [] syntax, such as array[i, j] , where i and j are both integers. Cz 45 magazine
  • Jun 18, 2015 · When opening a multi-file dataset with xray.open_mfdataset, also some variables are concatenated that do not have a time dimension.. My netCDF files contain a lot of those "static" variables (e.g. grid spacing etc.). Oct 18, 2018 · Xarray for multidimensional gridded data¶In last week's lecture, we saw how Pandas provided a way to keep track of additional "metadata" surrounding tabular datasets, including "indexes" for each row and labels for each column. These features, together with Pandas' many useful routines for all kinds of data munging and analysis, have made Pandas one of the most popular python packages in the ... Get-DistributionGroup -Anr marketing | Format-Table Name, ManagedBy -Auto. This example returns all distribution groups and mail-enabled security groups whose names contain the string "marketing" and shows the group owners. Parameters
  • The Get-ADOrganizationalUnit cmdlet gets an organizational unit (OU) object or performs a search to get multiple OUs. The Identity parameter specifies the Active Directory OU to get. You can identify an OU by its distinguished name or GUID. . 

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Dec 26, 2018 · That is why the most convenient way to get everything installed is to use the following command: $ conda install xarray dask netCDF4 bottleneck. Experienced Python programmers are recommended check the relevant documentation for more details. If you are a beginner, no worries. I made a list of dependencies that you need to check: Python 2.7/3.5 ...

A 1D array or list, which is interpreted as values for a one dimensional coordinate variable along the same dimension as it’s name A dictionary of {coord_name: coord} where values are of the same form as the list. The first argument supplies the name of the variable, the second argument sets the datatype and the third argument sets the shape. "f4" specifies a 32 bit float and "i4" represents a 32 bit integer 2. The shapes of the variables are specified using the dimension names. To create a scalar variable, one would omit the third argument.

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I thought we were writing variables in order of appearance in datasets, but it looks like we weren't doing that. #480 should fix that issue, at least when using netCDF4-python (the default backend). Once that patch is merged, you can reorder variables in datasets by indexing with a list of variable names, e.g., Jul 04, 2012 · Use some variable name that hasn't already been used in your app's current scope. My example was designed to show how to access array references using variables' string name as keys. I have no way of knowing what variables you are using unless you post your code for the given class. Indexing and selecting data¶ xarray offers extremely flexible indexing routines that combine the best features of NumPy and pandas for data selection. The most basic way to access elements of a DataArray object is to use Python’s [] syntax, such as array[i, j] , where i and j are both integers.

dataset uses the workspace name for the variable name in A. To include multiple variables, specify VAR_1,VAR_2,...,VAR_N. Variables can be arrays of any size, but all variables must have the same number of rows. VAR can also be an expression. name_dict (dict-like, optional) – Dictionary whose keys are current variable or dimension names and whose values are the desired names. optional (**names,) – Keyword form of name_dict. One of name_dict or names must be provided. Returns. renamed – Dataset with renamed variables and dimensions. Return type. Dataset A 1D array or list, which is interpreted as values for a one dimensional coordinate variable along the same dimension as it’s name A dictionary of {coord_name: coord} where values are of the same form as the list.

A list of attribute names corresponding to global netCDF attributes defined for the Dataset can be obtained with the ncattrs method. These attributes can be created by assigning to an attribute of the Dataset instance. A dictionary containing all the netCDF attribute name/value pairs is provided by the __dict__ attribute of a Dataset instance. I thought we were writing variables in order of appearance in datasets, but it looks like we weren't doing that. #480 should fix that issue, at least when using netCDF4-python (the default backend). Once that patch is merged, you can reorder variables in datasets by indexing with a list of variable names, e.g.,

May 29, 2018 · Some companies might discourage the use of variable lists in production code because automated lists can be volatile. If the number and names of variables in your data sets occasionally change, it is safer to manually list the variables that you are analyzing. However, for developing code and constructing examples, lists can be a huge time saver.

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A mapping from variable names to DataArray objects, Variable objects or to tuples of the form (dims, data[, attrs]) which can be used as arguments to create a new Variable. Each dimension must have the same length in all variables in which it appears. The following notations are accepted: mapping {var name: DataArray} mapping {var name: Variable} Access variables by name. You can access variable data, or select a subset of variables, by using variable (column) names and dot indexing. Load a sample dataset array. Display the names of the variables in hospital.

transformed: bool If True, y-axes and x-axes have been translated (see the :meth:`px2data_x` and :meth:`~straditize.straditizer.Straditizer.px2data_y` methods) colnames: list of str The column names to use in the plot ``**kwargs`` any other keyword argument that is passed to the :meth:`psy_strat.stratplot.StratGroup.from_dataset` method Returns ----- psy_strat.stratplot.StratGroup The grouper that visualizes the given `columns` in the `fig`""" from psy_strat.stratplot import strat_groupers ...

xarray.Variable¶ class xarray.Variable (dims, data, attrs=None, encoding=None, fastpath=False) ¶ A netcdf-like variable consisting of dimensions, data and attributes which describe a single Array. A single Variable object is not fully described outside the context of its parent Dataset (if you want such a fully described object, use a DataArray instead). Access variables by name. You can access variable data, or select a subset of variables, by using variable (column) names and dot indexing. Load a sample dataset array. Display the names of the variables in hospital. The netCDF is opened as a xarray.Dataset object with one data variable and three coordinates. We can get the data variable as a xarray.DataArray object as an attribute with the variable name. In [18]:

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Indexing and selecting data¶ xarray offers extremely flexible indexing routines that combine the best features of NumPy and pandas for data selection. The most basic way to access elements of a DataArray object is to use Python’s [] syntax, such as array[i, j] , where i and j are both integers. transformed: bool If True, y-axes and x-axes have been translated (see the :meth:`px2data_x` and :meth:`~straditize.straditizer.Straditizer.px2data_y` methods) colnames: list of str The column names to use in the plot ``**kwargs`` any other keyword argument that is passed to the :meth:`psy_strat.stratplot.StratGroup.from_dataset` method Returns ----- psy_strat.stratplot.StratGroup The grouper that visualizes the given `columns` in the `fig`""" from psy_strat.stratplot import strat_groupers ...

Get-DistributionGroup -Anr marketing | Format-Table Name, ManagedBy -Auto. This example returns all distribution groups and mail-enabled security groups whose names contain the string "marketing" and shows the group owners. Parameters

  • Get-Command -Noun Variable | Format-Table -Property Name,Definition -AutoSize -Wrap PowerShell also creates several system-defined variables. You can use the Remove-Variable cmdlet to remove variables, which are not controlled by PowerShell, from the current session.
  • Dec 26, 2018 · That is why the most convenient way to get everything installed is to use the following command: $ conda install xarray dask netCDF4 bottleneck. Experienced Python programmers are recommended check the relevant documentation for more details. If you are a beginner, no worries. I made a list of dependencies that you need to check: Python 2.7/3.5 ... The Get-Variable cmdlet gets the PowerShell variables in the current console. You can retrieve just the values of the variables by specifying the ValueOnly parameter, and you can filter the variables returned by name. The first command gets only the variables that are defined in the local scope. It ...
  • May 29, 2018 · Some companies might discourage the use of variable lists in production code because automated lists can be volatile. If the number and names of variables in your data sets occasionally change, it is safer to manually list the variables that you are analyzing. However, for developing code and constructing examples, lists can be a huge time saver. To search through folders and subfolders on the path recursively, use wildcards in the path name. For example, dir */*.txt lists all files with a txt extension exactly one folder under the current folder, and dir **/*.txt lists all files with a txt extension zero or more folders under the current folder.
  • transformed: bool If True, y-axes and x-axes have been translated (see the :meth:`px2data_x` and :meth:`~straditize.straditizer.Straditizer.px2data_y` methods) colnames: list of str The column names to use in the plot ``**kwargs`` any other keyword argument that is passed to the :meth:`psy_strat.stratplot.StratGroup.from_dataset` method Returns ----- psy_strat.stratplot.StratGroup The grouper that visualizes the given `columns` in the `fig`""" from psy_strat.stratplot import strat_groupers ...
  • xarray.Variable¶ class xarray.Variable (dims, data, attrs=None, encoding=None, fastpath=False) ¶ A netcdf-like variable consisting of dimensions, data and attributes which describe a single Array. A single Variable object is not fully described outside the context of its parent Dataset (if you want such a fully described object, use a DataArray instead). Indexing and selecting data¶ xarray offers extremely flexible indexing routines that combine the best features of NumPy and pandas for data selection. The most basic way to access elements of a DataArray object is to use Python’s [] syntax, such as array[i, j] , where i and j are both integers.

Dec 28, 2017 · <xarray.Dataset> Dimensions: (time: 3, x: 2, y: 2) Coordinates: lon (x, y) float64 -99.83 -99.32 -99.79 -99.23 lat (x, y) float64 42.25 42.21 42.63 42.59 * time (time) datetime64[ns] 2014-09-06 2014-09-07 2014-09-08 reference_time datetime64[ns] 2014-09-05 Dimensions without coordinates: x, y Data variables: precipitation (x, y, time) float64 4.762 4.104 0.02204 3.794 7.735 ... Sep 03, 2019 · To list the items and variables in the Variable: drive, use the Get-Item or Get-ChildItem cmdlets. Get-ChildItem Variable: To get the value of a particular variable, use file system notation to specify the name of the drive and the name of the variable. .

To search through folders and subfolders on the path recursively, use wildcards in the path name. For example, dir */*.txt lists all files with a txt extension exactly one folder under the current folder, and dir **/*.txt lists all files with a txt extension zero or more folders under the current folder. I thought we were writing variables in order of appearance in datasets, but it looks like we weren't doing that. #480 should fix that issue, at least when using netCDF4-python (the default backend). Once that patch is merged, you can reorder variables in datasets by indexing with a list of variable names, e.g.,

Sep 03, 2019 · To list the items and variables in the Variable: drive, use the Get-Item or Get-ChildItem cmdlets. Get-ChildItem Variable: To get the value of a particular variable, use file system notation to specify the name of the drive and the name of the variable.

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Oct 09, 2016 · Get variable values by name in C# Posted on October 9, 2016 by Rod Stephens The process for displaying variable values is somewhat convoluted, but it’s not too long.

Access variables by name. You can access variable data, or select a subset of variables, by using variable (column) names and dot indexing. Load a sample dataset array. Display the names of the variables in hospital. A varray is used to store an ordered collection of data, however it is often better to think of an array as a collection of variables of the same type. All varrays consist of contiguous memory locations. The lowest address corresponds to the first element and the highest address to the last element. A varray is used to store an ordered collection of data, however it is often better to think of an array as a collection of variables of the same type. All varrays consist of contiguous memory locations. The lowest address corresponds to the first element and the highest address to the last element. We are first setting the value of 2 variables, a and b to 5 and 10 respectively. We are adding those values and storing in the variable c. Finally, we are displaying the value of the variable c. The output of the above program would be 15. All of the arithmetic operators work in batch files. The following example shows arithmetic operators can ...

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To get decennial Census data or American Community Survey data, tidycensus users supply an argument to the required geography parameter. Arguments are formatted as consumed by the Census API, and specified in the table below. Not all geographies are available for all surveys, all years, and all variables.
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A varray is used to store an ordered collection of data, however it is often better to think of an array as a collection of variables of the same type. All varrays consist of contiguous memory locations. The lowest address corresponds to the first element and the highest address to the last element.

Assigning values to a list of variable names. Ask Question Asked 7 years, ... But if I re-evaluate this it does not work because aaa is now a list and not a variable. .