HolobiomicsLab
- 7.4k skills
- 0 followers
- 2 days ago last updated
- ▌ Physicochemical Descriptor Extraction · holobiomicslabUse when when you have validated RDKit molecule objects derived from PubChem or HMDB molecule IDs and need to generate quantitative chemical property representations as one modality in a multimodal feature tensor for neural network training.
- ▌ Pytorch Installation And Verification · holobiomicslabUse when when setting up a computational environment to run pre-trained PyTorch models that were trained on GPU hardware (e.g., NVIDIA A100 with CUDA 11.8), and the released model weights are GPU-trained artifacts. Specifically, when you have a jestr_requirements.
- ▌ Quality Control Metric Interpretation · holobiomicslabUse when after normalizing a metabolomics featuredata matrix (samples × metabolites), use this skill to visually and quantitatively assess normalization quality. Specifically, apply it when you need to decide whether a chosen normalization method (e.
- ▌ Query String Parsing And Tokenization · holobiomicslabUse when when you have a user-provided or system-generated query string containing a chemical structure in unknown or mixed format, and you need to route it to a structure-specific API endpoint (such as ClassyFire) that requires knowing whether the input is SMILES, InChI, IUPAC nomenclature, or.
- ▌ Rapid Spectrum Retrieval Optimization · holobiomicslabUse when you have a large collection of mass spectrometry spectra (m/z and intensity pairs) and need to rapidly retrieve similar or candidate spectra from the archive in response to queries.
- ▌ Recursive Descent Parser Construction · holobiomicslabUse when you have a formal grammar specification for a domain-specific language (or can extract one from reference implementations) and need to convert user-written query strings into structured, machine-processable representations (ASTs or JSON) that preserve domain-specific semantics—such as mass.
- ▌ Reference Peak Matching And Alignment · holobiomicslabUse when when you have a processed mass spectrum object (e.g., from Bruker FT-ICR acquisition) and a reference peak list (e.g., SRFA.
- ▌ Release Versioning Schema Enforcement · holobiomicslabUse when when preparing a release branch for a Maven-based project (like NMRFx) and you need to verify that all pom.xml files in the repository tree declare identical version strings before applying release branch naming conventions (e.g., 'release/X.Y.Z').
- ▌ S7 Object Construction And Validation · holobiomicslabUse when after successfully parsing vendor-specific metabolomic data files (Metabolon Excel, Nightingale, Olink, SomaLogic) into separate data, samples, and features tables, and before applying quality control or batch normalization pipelines.
- ▌ Smiles Inchi Fasta Format Recognition · holobiomicslabUse when when you have a mixed batch of chemical structure queries in unknown or variable formats (e.
- ▌ Soft Thresholding Adjacency Weighting · holobiomicslabUse when after computing a biweight midcorrelation similarity matrix across normalized metabolite abundance data, and before hierarchical clustering on dissimilarity.
- ▌ Spatial Distribution Pattern Analysis · holobiomicslabUse when when you have loaded MSI peak data with associated m/z values and need to disambiguate matrix ions from analyte ions. Apply this skill when chemical formula alone is insufficient (e.g., overlapping or isobaric peaks exist) and you have pixel-level spatial intensity maps for each ion.
- ▌ Spectral Fragment Identifier Matching · holobiomicslabUse when when you have downloaded fragment records from separate experimental and predicted online databases and need to verify that each fragment can be traced back to a valid compound entry in a reference compound database (e.g., SDF-format DNA adduct compound collection).
- ▌ Spectral Noise Filtering Dynamic Peak · holobiomicslabUse when use this skill after normalizing, smoothing, and baseline-reducing MSImagingArrays objects when you need to detect peaks across multiple spectra with consistent SNR-based thresholding.
- ▌ Spectral Peak Alignment Across Pixels · holobiomicslabUse when after peak picking across individual spectra in an MSImagingExperiment, when you need to harmonize peak m/z positions across pixels to account for small shifts in peak location due to instrumental drift, calibration differences, or natural variation.
- ▌ Spectral Peak Detection And Alignment · holobiomicslabUse when after noise filtering and baseline correction have been applied to mass spectrometry data (DI-MS, ASAP-MS, LDI-MS, or other high-throughput MS formats in mzML, mzXML, or vendor formats).
- ▌ Spectral Reference Peak Summarization · holobiomicslabUse when after peak picking and alignment have been performed on preprocessed spectra (normalized, smoothed, and baseline-reduced), and you need to create a unified peak reference table that can be applied consistently across all spectra in an imaging dataset.
- ▌ Statistical Result Mapping To Display · holobiomicslabUse when you have omics abundance or expression measurements paired with corresponding statistical results (p-values, effect sizes, fold-changes) and need to create an interactive, exploratory display where each omics feature (protein, metabolite, gene) occupies its own panel and can be filtered or.
- ▌ Structure Organism Pair Deduplication · holobiomicslabUse when you have a curated natural products dataset (e.g., LOTUS platinum validation dataset in TSV format) and need to establish ground-truth counts of unique chemical structures, unique organisms, and unique referenced structure-organism associations.
- ▌ System Path Environment Configuration · holobiomicslabUse when when setting up imzML Writer for the first time on a new machine, or when raw vendor mass spectrometry file conversion fails with 'msconvert not found' or Docker image unavailable errors. Specifically: on Windows/PC systems before invoking RAW_to_mzML conversion;
- ▌ Systems Biology Model Standardization · holobiomicslabUse when you have multiple draft metabolic reconstructions of community members or assembly variants (e.g., from different annotation pipelines or genome assemblies) in diverse or non-standard formats, and you need to merge them into a single consensus model.
- ▌ Targeted Compound Metadata Formatting · holobiomicslabUse when you have a raw list of target compounds (in .xlsx, CSV, or database form) with heterogeneous column names and layouts, and you need to prepare it for targeted peak detection, EIC extraction, or quality metric calculation in TARDIS or similar LC–MS metabolomics tools.
- ▌ Theoretical To Observed Peak Matching · holobiomicslabUse when you have a mass spectrum scan containing observed precursor ions (m/z, intensity pairs) in a narrow isolation window, a known peptide sequence with specified charge state and stable isotope labeling parameters (atom type, incorporation probability), and you need to determine which observed.
- ▌ Time Temperature Degradation Modeling · holobiomicslabUse when you are planning a blood sampling campaign and need to know whether specific lipid or polar-metabolite analytes will degrade during storage or processing delays at known temperatures, or you are troubleshooting retrospective stability concerns for analytes already measured under documented.
- ▌ Trend Classification From Fold Change · holobiomicslabUse when when you have harmonized metabolomics data with fold-change and p-value columns from multiple studies and need to assign trend categories prior to vote-counting meta-analysis.
- ▌ Statistics Biomarker Discovery Workflow · holobiomicslab bundleUse when you have a metabolomics feature/quant table and want a statistically rigorous comparison and candidate biomarkers — cleaning and normalization, multivariate analysis, differential features, enrichment/pathway analysis, and biomarker selection with ROC.
- ▌ Adjacency Matrix Sparsity Analysis · holobiomicslabUse when immediately after calling squidpy.gr.spatial_neighbors() or similar spatial graph construction methods on an AnnData object. It is essential when validating that the computed spatial graph has been correctly stored in adata.
- ▌ Alternative Splicing Event Parsing · holobiomicslabUse when when you have a GTF genome annotation and need to identify all local alternative splicing events (SE, RI, A5/A3, MX, AF/AL) or transcript-level isoform events for a given gene set, prior to quantifying PSI values across samples or performing differential splicing analysis.
- ▌ Gene Expression Log Transformation · holobiomicslabUse when after normalizing total UMI counts per cell using normalize_total, and before PCA or feature selection. Use this when working with raw or depth-normalized count matrices where gene expression values span multiple orders of magnitude and variance is not homogeneous across expression levels.
- ▌ Gene Filtering By Expression Level · holobiomicslabUse when you have a large gene expression matrix (e.g., thousands of genes) from normalized microarray or RNA-seq data and need to reduce computational burden before running pathway enrichment analysis (e.g., GSEA or GESECA).
- ▌ Independent Filtering Optimization · holobiomicslabUse when you have completed DESeq differential expression analysis on a DESeqDataSet and obtained raw results with p-values across all genes.
- ▌ Microarray Expression Data Loading · holobiomicslabUse when you have raw or normalized microarray expression matrices stored in public repositories (GEO accessions) along with sample metadata, and you need to load both into R as structured objects (expression matrix and phenotype data frame) to construct a design matrix and fit linear models for.
- ▌ Python Data Structure Verification · holobiomicslabUse when after executing a spatial analysis function (e.g., squidpy.gr.sepal) that modifies or augments a data object, verify that the expected output fields exist with correct names, data types, and array dimensions before proceeding to interpretation or visualization.
- ▌ Trajectory Inference Preprocessing · holobiomicslabUse when you have raw or normalized single-cell RNA-seq expression data stored in an AnnData object (`.h5ad` format) and your analysis goal is to infer developmental or differentiation trajectories.
- ▌ Transcript Level Count Aggregation · holobiomicslabUse when you have transcript-level abundance and count estimates from salmon, sailfish, kallisto, or oarfish and need gene-level matrices for downstream differential analysis with edgeR, DESeq2, or limma-voom.
- ▌ Candidate Spectrum Retrieval And Ranking · holobiomicslabUse when when you have a large reference MS/MS spectral library (>10k spectra) and need to perform open modification searches on query spectra without exhaustively comparing against every library entry.
- ▌ Mass Spectrometry File Format Conversion · holobiomicslabUse when you have raw MS data files in vendor-native format (.raw, .d, .ms) from CE-MS or LC-MS instruments and need to process them through AriumMS or other open-source metabolomics pipelines that require standardized XML-based interchange formats.
- ▌ Metabolite Detection Matrix Construction · holobiomicslabUse when after GNPS spectral library matching has been completed on a batch of MS2 spectra from public MassIVE datasets and you need to aggregate chemical annotations into a tabular format suitable for downstream comparative metabolomics, co-analysis, or chemical explorer visualizations across.
- ▌ Spectral Clustering And Feature Grouping · holobiomicslabUse when you have raw MS/MS feature data with m/z, retention time, and fragmentation spectra from an untargeted metabolomics experiment, and you need to annotate reaction-derived metabolites of xenobiotics without relying on a priori targeted methods.
- ▌ Compound Area Aggregation Across Samples · holobiomicslabUse when you have a GC-MS dataset with multiple sample files (e.g., Std_soln_00, Std_soln_07, Std_soln_00a) where the same chemical is detected in different runs with varying Match.Factor scores, and you need to consolidate area values by compound identity rather than by individual peak detection.
- ▌ Ei Mass Spectra Structure Representation · holobiomicslabUse when you have raw or archived MSP spectral library files and need to load them into R for library searching, spectral matching, or batch reprocessing. Specifically, when you must extract precursor m/z values, peak intensity pairs, and spectrum metadata (e.
- ▌ Gc Column Polarity Specific Ri Filtering · holobiomicslabUse when you have a combined EI mass spectral library (MSP format) lacking experimental RI values, access to NIST ri.dat and USER.
- ▌ Mass Spectrometry Data Format Conversion · holobiomicslabUse when you have mass spectral libraries from multiple sources (e.g., NIST EI, RIKEN MS2, MoNA GC-MS or LC-MS/MS, GNPS mgf) that need to be consolidated for use in MS-DIAL, or you have a single library with incomplete or malformed metadata (e.
- ▌ Mass Spectrometry Data Quality Filtering · holobiomicslabUse when you have generated a complete feature table from mzML files (e.g., Asari 'full' feature table) and need to curate it for downstream analysis.
- ▌ Mass Spectrometry Match Factor Filtering · holobiomicslabUse when you have a GC-MS dataset with a Match.Factor column (output from Agilent Unknowns Analysis or equivalent) and need to retain only high-confidence compound identifications.
- ▌ Metabolomic Feature Extraction From Mzml · holobiomicslabUse when you have centroid mzML files from LC-MS acquisitions and need to detect, group, and quantify metabolomic features for a PCPFM experiment. Use it as the first feature-level processing step after file format conversion from raw instrument files (e.g., .raw to mzML via ThermoRawFileParser).
- ▌ Overlapped Peak Deconvolution Validation · holobiomicslabUse when after solving for the concentration distribution matrix C using least squares optimization (minimize ||overlapped_peaks - S·C||²), validate that the solution is physically meaningful and numerically accurate by checking whether S·C faithfully reconstructs the input overlapped peak.
- ▌ Retention Index Assignment And Filtering · holobiomicslabUse when after combining multiple EI or MS2 mass spectral libraries and you have access to NIST RI reference files (ri.dat and USER.DBU) and need to assign experimental retention indices to compounds.
- ▌ Spectral Library Compilation And Merging · holobiomicslabUse when you have multiple mass spectral library files in different formats (MSP, MGF, MOL folders) from sources like NIST, MoNA, RIKEN, or GNPS, and need to produce a single consolidated MSP file with complete SMILES, InChIKey, and experimental retention index (RI) annotations for metabolomics or.
- ▌ Spectral Library Metadata Reorganization · holobiomicslabUse when when ingesting mass spectral libraries (EI or MS2) where SMILES information is embedded in the Comment field rather than in a dedicated SMILES metadata field—particularly common in MoNA GC-MS and LC-MS/MS exports.
- ▌ Ablation Study Design And Interpretation · holobiomicslabUse when when you have a neural network or machine learning model with multiple tunable hyperparameters (layer size, regularization strength, dropout) or design choices (e.
- ▌ Annotation Candidate Comparative Scoring · holobiomicslabUse when you have pseudo-MS/MS spectra from LC-MS all-ion fragmentation (AIF) data that have been matched against one or more ion fragment databases (e.g., LipidPos, MassBank), generating multiple candidate annotations per feature.
- ▌ Batch Corrected Feature Table Validation · holobiomicslabUse when after applying batch correction (e.g., ComBat, SVA) to a merged feature table from non-targeted LC-MS/MS metabolomics data and before proceeding to univariate or multivariate statistical analysis.
- ▌ Bgc Identification From Genomic Sequence · holobiomicslabUse when you have assembled genome sequences (contigs or scaffolds in FASTA format) and want to identify putative BGCs and their precursor peptides before constructing a RiPP structure database for spectral matching.
- ▌ Bioconductor Backend Architecture Design · holobiomicslabUse when you are building a new mass spectrometry data backend or storage layer and need to integrate it with the Spectra ecosystem. Triggers include: (1) you have a novel data source (raw files, databases, web APIs) that should be accessible through Spectra objects;
- ▌ Bioconductor Object Structure Inspection · holobiomicslabUse when after constructing a SummarizedExperiment object from raw metabolomics data via buildExperiment, or after batch correction and ratio computation steps, inspect rowData, colData, and assays slots to verify that compound identities, sample annotations, and computed assay values (primary.
- ▌ Blind Search Mode Parameter Optimization · holobiomicslabUse when when you have tandem mass spectra from ribosomally synthesized peptides (RiPPs) and suspect the presence of unknown or non-standard post-translational modifications that would be missed by standard database search modes constrained to known modification classes.
- ▌ Chemical Noise Subformula Loss Filtering · holobiomicslabUse when you have MS/MS spectra with high chemical noise (spurious ions arising from incomplete ionization, in-source fragmentation, or instrument artifacts) and you possess accurate molecular formula or SMILES structure and adduct information for the precursor.
- ▌ Chromatographic Method Transfer Learning · holobiomicslabUse when you have experimental RT measurements from a source chromatographic method and need to predict RTs for the same molecules on a target chromatographic method, but lack a large calibration dataset (typical scenario: 10–100 molecules with ground truth RTs on both methods).
- ▌ Collision Cross Section Model Validation · holobiomicslabUse when after applying deimos.calibration.tunemix() to positive-mode or negative-mode tune mix data with known CCS reference compounds (m/z range typically 118–1522), verify that the resulting calibration model achieves the expected r-squared coefficient.
- ▌ Combined Table Extraction And Inspection · holobiomicslabUse when after constructing a metabCombiner object by grouping features from two metabData objects by m/z, and before proceeding to anchor selection, RT mapping, or alignment scoring.
- ▌ Compound Structural Similarity Retrieval · holobiomicslabUse when you have a collection of preprocessed MS/MS spectra with structural annotations (InChIKey, SMILES, or InChI) and need to identify pairs of compounds that are structurally related above a specified similarity threshold.
- ▌ Correlation Matrix Heatmap Visualization · holobiomicslabUse when after computing a correlation matrix (e.g., Pearson correlation across samples) on statistically significant LC-MS features, particularly when you need to inspect hierarchical dendrogram structure, validate cluster assignments from different flattening methods (constant-threshold vs..
- ▌ Cross Method Chromatographic Scalability · holobiomicslabUse when you have a pretrained RT-Transformer model checkpoint from a large, well-characterized chromatographic dataset (e.g., SMRT) and need to predict retention times for a different chromatographic method or instrument condition represented in a smaller, domain-specific dataset (e.g., PredRet).
- ▌ Database Schema Design For Spectral Data · holobiomicslabUse when you have MS/MS spectral library data currently stored in file-based formats (JSON, CSV, binary, MGF, MSP) and need to migrate to database-backed storage to support fast queries by metadata filters (precursor m/z, ion mode, retention time) and computed similarity scores against query.
- ▌ Double Bond Positional Isomer Generation · holobiomicslabUse when when constructing a comprehensive lipid spectral reference library that must disambiguate lipids differing only in carbon-carbon double-bond position (e.
- ▌ Embedding Space Dimensionality Reduction · holobiomicslabUse when when you have a collection of MS/MS spectra (in mzML or MGF format) and need to group or retrieve spectra from the same peptide, or when you need to perform large-scale similarity comparisons across millions of spectra without working directly in the original high-dimensional peak space.
- ▌ Experimental Design Metadata Integration · holobiomicslabUse when when you have LC-MS raw data and need to process it through a feature detection and quantification pipeline in KNIME, but lack a structured mapping between sample identifiers, experimental conditions, and the raw LC-MS runs.
- ▌ Feature Hashing Dimensionality Reduction · holobiomicslabUse when you have high-resolution tandem mass spectra (mzML, mzXML, or MGF format) and need to cluster or index millions of spectra efficiently without exhaustive pairwise comparison.
- ▌ Feature Matrix Normalization And Scaling · holobiomicslabUse when you have a heterogeneous feature matrix combining molecular descriptors (from RDKit/mordred) and chromatographic metadata (column length, temperature, pH, flow rate, particle size) with different physical units, ranges, and scales.
- ▌ Feature Metadata Parsing And Integration · holobiomicslabUse when after completing sample alignment in JPA (Part 5) or when ingesting a peaklist or aligned feature matrix from prior peak-picking runs, parse feature metadata to enable EIC export or multi-sample feature annotation.
- ▌ Feature Table Annotation Standardization · holobiomicslabUse when after Blueshift or Gravity processing has produced a feature abundance table with annotations, but before final reporting or integration with sample/injection metadata.
- ▌ Formula Database Chemical Noise Sampling · holobiomicslabUse when when you need to generate synthetic MS/MS spectra with chemical noise for validating denoising performance, benchmarking library matching algorithms, or testing edge cases where clean reference spectra exist but must be augmented with realistic contaminants.
- ▌ Function Wrapping And Binding Mechanisms · holobiomicslabUse when when you have Spectra objects in R and need to apply Python MS library functionality (spectral similarity scoring, filtering, normalization) without leaving the R environment, or when you want to create custom hybrid workflows that leverage both R and Python MS packages within a single.
- ▌ Gnps Spectral Library Compound Retrieval · holobiomicslabUse when you have GNPS library accession IDs (e.g. CCMSLIB00011906190) for a reference compound and a chemically or biologically modified analog, and need to load their full MS/MS spectra and structural annotations to set up a modification-finding analysis.
- ▌ High Resolution Mass Spectrum Processing · holobiomicslabUse when when you have high-resolution tandem mass spectra from proteomics experiments and need to search against a spectral library for both unmodified peptides and those with unknown or variable post-translational modifications.
- ▌ High Throughput Spectral Data Processing · holobiomicslabUse when when you have MGF-formatted mass spectrometry peak files (typically from proteomics experiments) numbering in the millions of spectra that require grouping into similar MS/MS clusters, and runtime must be kept under 15 minutes rather than hours.
- ▌ Identifier Format Parsing And Validation · holobiomicslabUse when you receive mass spectrometry data through heterogeneous identifier formats—specifically when the input could be a GNPS Task ID, a Universal Spectrum Identifier (USI), or a Feature-Based Molecular Networking (FBMN) identifier—and you need to programmatically determine which format was.
- ▌ Inchikey Normalization And Deduplication · holobiomicslabUse when you have an annotated MS/MS spectral dataset with structure metadata (InChI or SMILES records) linked to InChIKey identifiers, and you observe that some InChIKeys are associated with multiple or variant InChI strings due to curation inconsistencies, stereoisomerism notation differences, or.
- ▌ Inference Model Cpu Thread Configuration · holobiomicslabUse when when running Mass2SMILES inference on a TensorFlow-CPU build (e.g., delser292/mass2smiles:final container) and you need to optimize inference speed by controlling CPU core allocation.
- ▌ Installation Verification And Validation · holobiomicslabUse when after cloning the ENPKG repository and installing dependencies using uv sync or conda, before executing the workflow on metabolomics datasets.
- ▌ Isotope Labelling Feature Interpretation · holobiomicslabUse when after basepeak_finder has identified base peaks from isotope-labelled feature clusters with fold-change and intensity thresholds met.
- ▌ Lc Ms Feature Grouping By Retention Time · holobiomicslabUse when immediately after chromatographic peak detection (findChromPeaks) when you have detected peaks across multiple samples and need to identify which peaks represent the same feature across the sample cohort.
- ▌ Lda Convergence Monitoring And Iteration · holobiomicslabUse when after configuring LDA hyperparameters (alpha, beta, number of topics, iteration budget) and loading a preprocessed bag-of-fragments corpus with neutral losses extracted and noise filtered, initiate LDA training and apply convergence monitoring to determine when topic-fragment probability.
- ▌ Library Spectrum Database Format Parsing · holobiomicslabUse when you have experimental MS/MS spectra (from mzML, mzXML, or raw instrument formats) and wish to match them against a reference spectral library provided in MSP or CSV format. The skill is required as the first step before similarity scoring and candidate ranking.
- ▌ Mass Difference Calculation And Matching · holobiomicslabUse when you have centroided data-dependent acquisition (DDA) MS2 spectra from LC- or GC-HRMS and need to annotate detected features with PFAS-specific diagnostic fragments. Use it after feature detection (e.
- ▌ Mass Spectrometry Data Import And Export · holobiomicslabUse when use this skill at the start of any mass spectrometry analysis pipeline when you have raw spectral data in mzML, mzXML, msp, MGF, JSON, or metabolomics-USI format and need to load it into a Python environment for preprocessing, cleaning, filtering, or similarity comparison.
- ▌ Mass Spectrometry Data Structure Mapping · holobiomicslabUse when after feature extraction and peak recognition have produced detected MS/MS spectra (precursor m/z, charge, retention time, and fragment ion peaks), and you need to export these spectra for external spectral database searching, cross-platform comparison, or archival in a format compatible.
- ▌ Mass Spectrometry Feature Representation · holobiomicslabUse when after LC-MS feature clustering based on MS-DIAL peak character estimation, when you have grouped features that share similar chromatographic or spectral properties and need to select a single representative feature per cluster to reduce false positives and redundant annotations before.
- ▌ Mass Spectrometry Fragmentation Modeling · holobiomicslabUse when you are generating synthetic LC-MS/MS data for method validation, algorithm benchmarking, or co-fragmentation analysis, and need to model how specific biomolecules (peptides, nucleosides, or other chemical formulas) fragment under collision-induced dissociation.
- ▌ Mass Spectrometry Qc Criteria Definition · holobiomicslabUse when when setting up a new LC-MS QC workflow or modifying existing QC rules: you have access to internal standards and target analytes, know their expected retention times and m/z values, and need to establish pass/fail boundaries for sample acceptance before or concurrent with instrument runs.
- ▌ Mass Spectrometry Raw Data Preprocessing · holobiomicslabUse when when you have raw DIA mass spectrometry data files (.raw, .d, .
- ▌ Mass Spectrometry Spectrum Vectorization · holobiomicslabUse when you have high-resolution MS/MS spectra in mzML, mzXML, or MGF format and need to cluster or search across millions of spectra. The vectorization step is necessary before constructing nearest-neighbor indexes or computing pairwise distance matrices for spectrum clustering.
- ▌ Mass Spectrometry Workflow Orchestration · holobiomicslabUse when you have a collection of mzML or mzML.gz files from LC-IMS-MS/MS experiments and need to apply a consistent, reproducible sequence of feature detection, alignment, CCS calibration, isotope detection, and MS/MS deconvolution operations across multiple samples.
- ▌ Mass Spectrum Prediction Neural Networks · holobiomicslabUse when when you have molecular structures (SMILES, InChI, or chemical formula) and need to predict their tandem mass spectra for structural elucidation or compound ranking against databases. Use SCARF when operating at the chemical formula level;
- ▌ Mass To Charge Matching Tolerance Tuning · holobiomicslabUse when you are preparing to align two or more nontargeted LCMS datasets from the same analytical method using Eclipse and need to determine the m/z tolerance window.
- ▌ Metabolic Model Constraint Specification · holobiomicslabUse when you have a generic constraint-based metabolic model (SBML format) and cross-sectional omics data (RNA-seq, intracellular metabolomics, YSI or bioanalyzer extracellular flux measurements) for multiple biological samples and need to create sample-specific models that discriminate whether.
- ▌ Metabolite Abundance Threshold Filtering · holobiomicslabUse when you have intracellular metabolomics data paired with constraint-based metabolic model predictions and need to identify metabolically controlled reactions.
- ▌ Metabolite Edge Scoring Dbedges Bioedges · holobiomicslabUse when you have a measured m/z value from spatially-resolved metabolomics or mass spectrometry imaging and need to assign a molecular formula with high confidence. Use it specifically when you have access to a pre-constructed formula network (KnownSet database) linking 2.
- ▌ Metabolite Feature Treemap Visualization · holobiomicslabUse when after applying mpactr's filter suite (filter_mispicked_ions, filter_group, filter_cv, filter_insource_ions) to a peak table, use this skill when you need to summarize the overall filtering outcome across all ion categories and present a compact, area-proportional view of which ions passed.