Questions tagged [dataset]
Questions on the Dataset data type and related functionality introduced in version 10. Do not use for questions on data in more generic list format or data-manipulation questions generally.
777 questions
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How to prevent Dataset from converting Pi to decimal point?
This might be another known issue in Dataset but not able to find workaround.
Dataset converts $\pi$ to decimal point. But keeps $\{\pi\}$ as exact.
Is there a way to tell Dataset to keep $\pi$ as ...
- 156k
4
votes
2
answers
161
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How to make Dataset display empty list as {} and not as blank?
I use Dataset to display Association. For debugging mainly. But if a field value is empty list {}, it display as blank. This can be confusing as it looks also same as if field was empty string.
Is ...
- 156k
0
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84
views
2
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2
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199
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Making dataset with named rows and columns
My goal is to turn this 5 by 3 table with named rows and columns into a Dataset. I found a method using ...
- 1,484
2
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5
answers
494
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Removing large spikes in a dataset [closed]
I am trying to remove spikes in a data set. I have plotted the data as well as the Differences. Clearly, the spikes in the difference spectrum line up with the ...
- 71
1
vote
1
answer
90
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How to parse out a word's position in a data set [closed]
I'm trying to find better ways to import data. My data set is a CSV that contains a parameters at the end of the file. For example in this two part list I want to find the position at which the word &...
- 41
0
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1
answer
89
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Selecting values from a dataset and place them as plotlables
With very large dataset, I would like to pick some column values and place them in the plot as a plotlable or some text in the plot. Here is a simple example:
...
- 100
5
votes
1
answer
159
views
Using a variable in a named slot that refers to a column in either a Dataset or Tabular?
I would like to use variables in named slots referencing columns in Tabulars as I am used to in Dataset. But the behavior appears to be different, and I am hoping someone can explain what's actually ...
- 53
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0
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156
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Persistence of "Object can not be used as Input: Error - Unable to Save Data"
One of the fun things to do with WL is to examine datasets from various sources. In doing so, I have encountered an error that I have not previously observed. Upon creation of two datasets in the ...
- 2,055
0
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2
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253
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How to predict time series?
I have the precipitation of twelve months (t=1,2,...,12) as below.
o = {30, 40, 50, 60, 70, 80, 90, 100, 70, 50, 40, 30};
I have estimated the rainfall using this ...
- 301
1
vote
0
answers
96
views
3
votes
3
answers
287
views
3
votes
1
answer
201
views
Making faster extraction of table elements in Mathematica or beyond
Consider the following code:
...
- 6,063
3
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72
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Dataset key name autocomplete
I am working with a large dataset with over 100 keys. When writing queries, I would like to get autocompletion for the key names. My current approach is:
...
- 71
0
votes
1
answer
101
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Adding a column to a dataset doesn't work when function has a warning
I have the following dataset:
...
- 397