Generate several independent columns

Example: three fill-volume samples

Generate three independent practice columns of fill volumes in mL. Each column contains 100 values from the same Normal model.

Download the generator parameters (reference CSV)

This is the same example used in Help. The CSV lists the generator parameters for reference. Enter them manually on Inputs; importing the CSV does not configure the generator or provide measured observations.

1. Create the generator

In the sidebar, choose Data utilities, then Create Random Data. Name the analysis, select New blank worksheet and choose Create analysis. This worksheet receives the generated columns.

2. Set the generated variables

On Inputs, use Add definition twice so that Generated variables contains three definitions. Enter fill_volume_ml_1, fill_volume_ml_2 and fill_volume_ml_3 in Column name, in that order.

For each definition, enter 100 in Number of observations, choose Normal in Distribution, enter 500 in Mean (μ) and 1.8 in Standard deviation (σ). The measurements and parameters use mL.

3. Set the seed and destination

Open Reproducibility and enter 42 in Random seed.

Check Worksheet output: the destination should be your analysis worksheet, with three new columns. Generate once to reproduce this example. Each successful run appends new columns.

Create Random Data: Inputs with the example’s assignments and settings — The three ordered Normal definitions and seed 42 on Inputs. The worksheet receives three new columns. View full-size image (opens in a new tab)

4. Generate data

Choose Generate data, then open Results. Open Worksheet to see the new columns.

5. Interpret results

Check the generated output
There are three new columns with 100 values each. These are simulated observations for practice, not measured production data.
Read the model
Each column uses mean 500 mL and standard deviation 1.8 mL. The columns are independently generated samples from the same model, so their values need not match.
Read a generated row
The first row contains about 500.548, 499.319 and 500.608 mL. These are three simulated values. Matching row positions do not identify the same bottle or make the samples paired.
Use the sample deliberately
Use the generated columns to practise an analysis or explore the supplied model. Seed 42 repeats this sample with the same ordered definitions and calculation version. A blank seed requests a fresh sample. Running Generate data again appends columns; it does not replace the earlier output.

More details: read each result section

Complete result tables use six significant digits, as in Help.

Generation summary

The summary lists all three output columns, each with 100 valid values, and seed 42.

Calculated example output. Running a practice copy writes new columns to its independent worksheet.

Generation summary · 3 rows
Definition	Output column	Distribution	Valid values	Seed
fill_volume_ml_1	fill_volume_ml_1	normal	100	42
fill_volume_ml_2	fill_volume_ml_2	normal	100	42
fill_volume_ml_3	fill_volume_ml_3	normal	100	42

Captured generator parameters

Each column uses mean 500 mL and standard deviation 1.8 mL. The columns are independently generated samples from the same model, so their values need not match.

Captured generator parameters · 6 rows
Definition	Parameter	Value
fill_volume_ml_1	mean	500
fill_volume_ml_1	sd	1.8
fill_volume_ml_2	mean	500
fill_volume_ml_2	sd	1.8
fill_volume_ml_3	mean	500
fill_volume_ml_3	sd	1.8

Generated values

All 100 generated rows are retained in generation order. The first row contains about 500.548, 499.319 and 500.608 mL. These are three simulated values. Matching row positions do not identify the same bottle or make the samples paired.

Captured values in original row order. Exports retain full precision.

Generated values · 100 rows
Row	fill_volume_ml_1	fill_volume_ml_2	fill_volume_ml_3
1	500.548	499.319	500.608
2	498.128	502.339	502.533
3	501.351	499.359	500.163
4	501.693	501.328	501.159
5	496.488	498.319	496.31
6	497.656	499.63	499.912
7	500.23	498.29	498.482
8	499.431	499.39	497.806
9	499.97	501.513	498.419
10	498.465	496.891	499.399
11	501.583	500.782	501.649
12	501.4	500.428	497.612
13	500.119	498.931	500.055
14	502.029	497.397	499.128
15	500.842	500.13	499.41
16	498.453	499.047	501.805
17	500.664	500.419	500.969
18	498.274	500.039	502.407
19	501.581	502.883	499.722
20	499.91	499.569	498.747
21	499.667	498.158	499.597
22	498.774	500.323	500.436
23	502.201	500.396	500.318
24	499.722	502.447	498.048
25	499.229	501.503	500.163
26	499.366	500.642	500.411
27	500.958	502.634	504.531
28	500.658	497.86	503.378
29	500.743	498.848	498.464
30	500.775	498.332	499.483
31	503.855	499.298	497.366
32	499.268	497.522	498.937
33	499.078	501.143	500.568
34	498.535	499.6	502.171
35	501.109	497.353	498.688
36	502.032	498.172	498.823
37	499.795	500.564	496.135
38	498.488	501.509	499.707
39	498.516	503.594	498.088
40	501.171	505.245	499.047
41	501.338	500.746	498.422
42	500.978	498.219	499.83
43	498.802	496.162	496.836
44	500.418	500.482	497.359
45	500.21	498.537	503.833
46	500.394	499.252	497.683
47	501.569	498.898	498.026
48	500.402	499.747	503.306
49	501.222	501.919	505.229
50	500.122	500.283	497.891
51	500.52	499.714	499.337
52	501.136	498.136	500.615
53	497.377	496.986	503.112
54	499.425	499.125	498.224
55	499.153	499.903	499.558
56	498.85	503.182	501.399
57	499.505	500.234	500.783
58	502.691	501.769	499.323
59	498.442	499.101	499.759
60	501.743	497.867	497.525
61	496.971	498.263	499.571
62	499.397	498.695	499.521
63	500.293	503.831	500.418
64	501.055	498.522	499
65	501.28	501.509	500.849
66	501.428	498.375	501.823
67	499.372	501.677	500.28
68	499.168	500.693	500.633
69	501.544	499.718	500.096
70	499.656	499.927	500
71	497.704	498.821	498.701
72	497.96	500.803	500.57
73	498.345	499.181	499.825
74	500.895	497.794	503.768
75	500.256	497.7	502.832
76	501.243	500.311	500.695
77	499.231	502.842	498.626
78	500.285	500.288	497.998
79	501.126	499.786	502.144
80	499.443	500.514	500.473
81	500.822	502.351	500.864
82	498.809	500.395	496.86
83	499.347	499.26	501.669
84	499.313	501.991	500.818
85	497.847	500.772	498.001
86	500.877	502.764	499.151
87	499.155	500.33	500.475
88	500.022	497.796	500.094
89	500.865	497.537	499.474
90	500.804	502.972	499.814
91	501.198	503.103	499.546
92	499.823	499.677	500.275
93	499.238	499.31	502.649
94	499.857	502.631	495.38
95	496.963	498.007	499.574
96	497.395	498.389	500.318
97	497.619	501.158	500.533
98	498.205	499.29	499.331
99	500.72	499.991	496.838
100	498.37	499.706	500.59

6. Create a report

Keep Generation summary, Captured generator parameters and Generated values. Record the seed, the definition order, the model and its units. Label the output as simulated practice data.

Choose Add to report from the completed run. Open Choose individual items and advanced options to select tables and charts, then choose Add to draft. Hidden items stay in the saved analysis.

Name the report and add the purpose of the study and your interpretation. Choose Save, review Preview, then use Export → Download HTML. The example below contains the full selected content, including results beyond one screen.

Complete native output for this Help example, including applicable tables, charts and run notes. Report numbers use the app’s displayed precision. Exported charts are static. On narrow screens, scroll wide charts and tables sideways.

Open full report Download HTML report

View example report