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data table

Contains a real tabulated dataset.

117 topics 40 solved Group: Status

Analytics 47 Outcomes 30 Access 15 Data & Tools 13 Research Methods 12

Related in this group: solved · open question · needs a source · long read · beginner friendly · worked example · disputed

117 topics · page 1 of 4

Topic	Participants	Replies	Views	Activity
Cleaning a self-reported dataset and what you throw away — what changed since Data & Tools › Datasets observational data site feedback data table confounding Solved Posting this under the heading it deserves: Cleaning a self-reported dataset and what you throw away — what changed since Everything below is what sits behind that. What changes if the standard account of…		2	2k	1h
What a reversed-phase purity number actually is Analytics › HPLC & UHPLC HPLC system suitability data table peak integration Solved The question in the title: What a reversed-phase purity number actually is I will give what I have already checked below so nobody repeats it. I would like to understand what this number means before I repeat…	+87	101	27k	4h
Named, unnamed and unspecified impurities as regulatory categories — the long version Analytics › Impurities & related substances HPLC data table forced degradation counter-ion content Wiki Named, unnamed and unspecified impurities as regulatory categories — the long version — setting out what I have, and where I think it stops being reliable. Two reports on the same lot, and I would like help…	+112	120	7.6k	5h
Follow-up: Comparing two chromatograms from different laboratories, properly Analytics › HPLC & UHPLC gradient method system suitability HPLC peak integration Comparing two chromatograms from different laboratories, properly — setting out what I have, and where I think it stops being reliable. I would like to understand what this number means before I repeat it…	+62	67	12k	9h
A 40-week log with the measurement method stated — what changed since Outcomes › Progress reports effect size data table DXA long read Solved A 40-week log with the measurement method stated — what changed since Writing it up because I had to work it out twice and would rather nobody else did. Posting a small dataset on 40-week log. It is mine, it…	+9	13	2.1k	9h
Deletion sequences: expected mass shifts by residue — the long version Analytics › Impurities & related substances water content endotoxin testing data table forced degradation On the subject in the title: Deletion sequences: expected mass shifts by residue — the long version Working notes rather than a conclusion. Deletion sequences keeps being re-asked here and I think that is…	+21	25	6.9k	10h
Endotoxin and why it is a separate question from purity — what changed since Analytics › Impurities & related substances HPLC endotoxin testing data table forced degradation On the subject in the title: Endotoxin and why it is a separate question from purity — what changed since Working notes rather than a conclusion. What changes if the standard account of Endotoxin is wrong? I…	+78	91	1k	10h
Seven-day rolling means and why weekly readings mislead Outcomes › Progress reports data table DXA effect size long read Seven-day rolling means and why weekly readings mislead Writing it up because I had to work it out twice and would rather nobody else did. Posting a series rather than a conclusion, with the method first.…	+109	125	42k	10h
Why 99.2% and 97.8% on the same lot can both be correct Analytics › HPLC & UHPLC system suitability peak integration gradient method data table Solved Why 99.2% and 97.8% on the same lot can both be correct I have a specific reason for asking rather than idle curiosity, and the context is below. I would like to understand what this number means before I…	+16	20	3.1k	11h
Comparing my trajectory with the trial curves, carefully — a second dataset Outcomes › Progress reports effect size data table long read Comparing my trajectory with the trial curves, carefully — a second dataset — setting out what I have, and where I think it stops being reliable. Maintenance rather than loss, which is the part of this that…	+77	81	16k	11h
Why the cheapest option is often not the cheapest Access › Pricing compounding formulary cost per milligram data table Solved Wiki Why the cheapest option is often not the cheapest I have a specific reason for asking rather than idle curiosity, and the context is below. Cheapest option: setting out the arithmetic in full, because I have…	+19	23	1.2k	12h
An 18-month record including the parts that went badly Outcomes › Progress reports data table long read effect size DXA An 18-month record including the parts that went badly — setting out what I have, and where I think it stops being reliable. Asking about 18-month record on behalf of the question I keep seeing asked badly,…	+77	81	17k	12h
Shoulders, tangent skims, and defensible integration Analytics › HPLC & UHPLC peak integration UV & DAD detection HPLC gradient method Posting this under the heading it deserves: Shoulders, tangent skims, and defensible integration Everything below is what sits behind that. Setting out an integration problem with the actual figures, because…	+16	20	11k	13h
A community side-effect dataset, with its response rate and biases Data & Tools › Datasets confounding site feedback data table observational data Solved A community side-effect dataset, with its response rate and biases — setting out what I have, and where I think it stops being reliable. Community side-effect dataset: setting out the arithmetic in full,…		2	5.1k	19h
Lean mass preservation: what the evidence supports — does this still hold? Outcomes › Body composition bioimpedance lean mass loss data table DXA Asking directly, because I could not find a straight answer: Lean mass preservation: what the evidence supports — does this still hold? What changes if the standard account of Lean mass preservation is wrong?…	+112	122	5.2k	20h
[2026 update] Waist circumference technique and its repeatability Outcomes › Progress reports DXA long read effect size data table Posting this under the heading it deserves: Waist circumference technique and its repeatability Everything below is what sits behind that. An honest uncertainty about Waist circumference technique rather than…	+23	27	5.9k	21h
Blinding yourself: practical methods and their limits — the long version Research Methods › N-of-1 designs worked example effect size confounding data table Blinding yourself: practical methods and their limits — the long version Writing it up because I had to work it out twice and would rather nobody else did. A narrow question about Blinding yourself,…	+7	11	1.8k	22h
[2026 update] Comparing prices across jurisdictions without misleading yourself Access › Pricing formulary compounding data table On the subject in the title: Comparing prices across jurisdictions without misleading yourself Working notes rather than a conclusion. Comparing prices across jurisdictions keeps being re-asked here and I…		2	809	23h
Cleaning a self-reported dataset and what you throw away Data & Tools › Datasets confounding site feedback data table observational data Cleaning a self-reported dataset and what you throw away — setting out what I have, and where I think it stops being reliable. Collecting what is known about cleaning a self-reported dataset in one place,…		2	28k	1d
Washout with a one-week half-life: the arithmetic — does this still hold? Research Methods › N-of-1 designs confounding data table worked example Solved Washout with a one-week half-life: the arithmetic — does this still hold? — that is the question, and I have not found it answered plainly anywhere I have looked. Washout: setting out the arithmetic in full,…	+41	45	12k	1d
Revisiting: Theoretical plates: useful number or ritual? Analytics › HPLC & UHPLC system suitability UV & DAD detection gradient method data table Solved Asking directly, because I could not find a straight answer: Revisiting: Theoretical plates: useful number or ritual? Asking about Theoretical plates directly, because I have read four threads on it and each…	+16	21	1.2k	1d
Impurity thresholds: where the common numbers come from Analytics › Impurities & related substances water content data table forced degradation counter-ion content Impurity thresholds: where the common numbers come from — setting out what I have, and where I think it stops being reliable. I have spent a fortnight trying to pin impurity thresholds down and I want to set…	+11	15	825	2d
Coming back to: A community side-effect dataset, with its response rate and biases Data & Tools › Datasets observational data site feedback data table Solved Posting this under the heading it deserves: A community side-effect dataset, with its response rate and biases Everything below is what sits behind that. Community side-effect dataset — I have the observation…	+96	101	33k	2d
Designing a personal experiment that could change your mind — one year on Research Methods › N-of-1 designs effect size data table worked example Designing a personal experiment that could change your mind — one year on — setting out what I have, and where I think it stops being reliable. Two things I would like separated before anyone answers on…	+74	80	17k	2d
[2026 update] Why 99.2% and 97.8% on the same lot can both be correct Analytics › HPLC & UHPLC UV & DAD detection system suitability peak integration gradient method Solved Why 99.2% and 97.8% on the same lot can both be correct — that is the question, and I have not found it answered plainly anywhere I have looked. I would like to understand what this number means before I…	+1	5	719	2d
Ultrasound and skinfolds: operator dependence in practice Outcomes › Body composition DXA data table lean mass loss Ultrasound and skinfolds: operator dependence in practice — setting out what I have, and where I think it stops being reliable. Trying to establish the boundary conditions on ultrasound and skinfolds. The…	+72	76	2.7k	2d
Blinding yourself: practical methods and their limits Research Methods › N-of-1 designs confounding data table effect size On the subject in the title: Blinding yourself: practical methods and their limits Working notes rather than a conclusion. A methods question rather than a substantive one, about blinding yourself. Everyone…	+40	44	33k	5d
Manufacturer assistance programmes and their eligibility rules Access › Pricing formulary data table compounding On the subject in the title: Manufacturer assistance programmes and their eligibility rules Working notes rather than a conclusion. I have spent a fortnight trying to pin manufacturer assistance programmes…	+37	42	32k	11d
[2026 update] Area percent versus weight percent: the confusion that causes most arguments Analytics › HPLC & UHPLC gradient method UV & DAD detection peak integration data table On the subject in the title: Area percent versus weight percent: the confusion that causes most arguments Working notes rather than a conclusion. Proposing that Area percent versus weight percent deserves a…	+65	70	1.1k	16d
Carryover and the ghost peak from last week's standard — what changed since Analytics › HPLC & UHPLC gradient method data table HPLC UV & DAD detection Solved Carryover and the ghost peak from last week's standard — what changed since Writing it up because I had to work it out twice and would rather nobody else did. What changes if the standard account of Carryover…	+98	114	37k	22d

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